From the Hamburg desk
Answers buyers look for
One hundred straight answers on fitment, engine codes, shipping, payment, and warranty. The desk at Bav Engines will confirm the code for your car before you pay. The check is free.
Buying with confidence
Where can I buy a used BMW engine?
You can buy it here, from the yard at Andreas Meyer Straße 38, 22113 Hamburg. Bav Engines is an independent engine desk in Hamburg. We are not BMW AG, and the engines we sell are used units and conversion kits prepared for workshops and private buyers.
Each listing names the engine code, the chassis it came from, and the price. Send the VIN before you pay and the desk confirms the match. There is no obligation to buy after that check.
Is it safe to buy a used engine online?
Yes, when the seller will match the code to your car before taking the money, and will put the shipping fee and the warranty in writing. That is how an order works at Bav Engines.
You get a listing with the code, a desk you can call on +49 15510 030835, and an invoice that shows the engine and the shipping. Eligible engines leave with 12 months of cover from the delivery date. If you want more photos of a unit before you pay, ask. We would rather show you the engine than rush the order.
Are you an official BMW dealer?
No. Bav Engines is an independent seller at Andreas Meyer Straße 38, 22113 Hamburg. We are not BMW AG and we do not use BMW as our own brand.
What we do is sell used BMW engines, and some other makes, to people who need a replacement or a conversion. The code on the listing is the code you should match to the car. If a page ever feels unclear, call the desk and we will say plainly what the unit is.
Can I visit the yard before I buy?
Yes. The yard is at Andreas Meyer Straße 38, 22113 Hamburg. Write or call first so the engine you want is on the bench when you arrive, and so someone is free to walk the code and the ancillaries with you.
Desk hours are Monday to Friday, 9:00 to 16:00 CET. If you cannot travel, send the VIN by email to autowerkeengines@gmail.com or on WhatsApp. The same check happens either way, and it is free.
How do I place an order?
Choose the listing whose engine code matches the car, or ask the desk to choose it with you. Add it to the order and you will see the engine price and the shipping fee before you commit.
Payment is confirmed by bank transfer, a secure card link we email, USDT, or Bitcoin. The unit is reserved once payment is agreed, then it is drained, sealed, strapped, and sent from Hamburg. You receive the invoice and, when the carrier collects it, the tracking reference.
Can I reserve an engine before I pay the full amount?
Yes. Tell the desk which listing you want and send the VIN. We hold the conversation open while the code is checked, and a bank transfer holds the unit for five working days while the money clears.
A card, USDT, or Bitcoin order is reserved when that payment is confirmed. We will not sell the same unit to someone else in the meantime. If the code does not match your car, we stop and look for the right one. You are not pushed into the wrong engine.
Do you sell to private buyers as well as workshops?
Yes. Private owners, independent workshops, and fleet buyers all order from the same Hamburg yard. A workshop can also ask for a trade account on 30-day terms by writing to autowerkeengines@gmail.com with the company details.
The advice is the same for everyone: match the engine code, read what is included, and ask for any extra photo you need before you pay. We are glad when a buyer takes that time.
Can I buy an engine for a customer's car?
Yes. Workshops do this every week. Send the customer's VIN, the gearbox that is in the car now, and the code you think it needs. We answer with the family that fits, and with a listing if we have that unit.
Put the workshop address as the delivery address if the pallet should go to the ramp rather than to the customer. The invoice can carry the details you need for your own paperwork.
Do you sell only complete engines?
The usual order is a complete used engine, or a conversion kit that is sold as one package. Gearboxes, kits, and related parts are listed in their own sections when we have them.
The listing is the contract for what is on that unit. If you need a specific ancillary, a flywheel, or a sump for xDrive, say so before you pay. We will tell you whether it is on the engine or whether you should keep the one from the car.
What does the listing price include?
The price on the listing is the engine or the kit. Shipping is a separate flat 249 € on a standard order, added once at checkout and printed on the invoice. It is not hidden in the goods price, and it is not added again later.
A few heavier kits show their own pallet rate on that listing. VAT for consumers is included at the rate that applies. You see the total before you pay, which is the number to trust.
Fitment and the VIN
How do I know a used engine will fit my car?
Match the engine code, not the badge on the boot. A 320d can be an N47 or a B47 depending on the year. The desk confirms the family, the year window, and the important ancillaries from the VIN before anything is reserved.
Send the VIN and, if you have it, the gearbox code. The check is free. Once those agree with the listing, you can order with a clear match rather than a guess.
What does the free VIN check actually do?
It reads the year, make, model, and engine family so we are talking about the same car. The Hamburg desk then confirms the gearbox and the parts that have to match, such as the sump on an xDrive car or the turbo on a diesel.
It does not oblige you to buy. Plenty of people send a VIN, hear the code, and decide later. We would rather lose a rushed order than fit the wrong engine.
Where do I find the engine code on the car?
On a BMW it is often on a sticker in the engine bay, on the timing cover, or on the block itself, and it is also stored against the VIN. Codes look like N47D20C, B47D20A, N57D30A, or B58B30.
If you cannot read the stamp, do not guess from the model name. Send the VIN. We will tell you which code the car left the factory with, and which listings match it.
What if the stamp on the engine and the listing do not match?
Stop and tell the desk before you fit it or before you pay, whichever comes first. The listing code is the code the unit is sold as. A different stamp means it is not the engine you ordered.
Photograph the stamp and the pallet label and send them the same day. If we have sent the wrong unit, we put it right. You should never be left trying to make a mismatched engine fit.
Will an engine from a different BMW chassis fit my car?
Sometimes, inside the same engine family, and sometimes not. The block code can be right while the sump, the oil cooler, the wiring, or the flywheel still belong to the other chassis.
This is why the listing names the car the engine came from, and why we ask for your VIN. We will say whether that unit is a direct match or whether you should keep parts from the engine coming out of your car.
Do I need the same gearbox as the donor car?
The engine and the gearbox have to belong together: bolt pattern, flywheel or flexplate, and the coding your car expects. An engine from an automatic car is not automatically ready for a manual car.
Tell us which gearbox is in the car now. If we have a matching gearbox we will say so. If the safe path is to keep your gearbox and clutch, we will say that too, before you pay.
Does xDrive change the engine I should buy?
It can. xDrive cars often use a different oil pan and sometimes different brackets so the front differential has room. The engine code can be the same as a rear-wheel-drive car while the sump is not.
Say xDrive when you send the VIN. We will point you at a unit with the right pan, or tell you to keep the pan from your own engine. That one detail saves a lot of workshop time.
Can I replace an N47 with a B47?
Not as a straight swap. The N47 is the earlier 2.0 diesel, common in E90, E60, F30, and early X1 cars. The B47 is the later modular 2.0 diesel in newer F and G chassis. Mounts, wiring, and the gearbox side are not interchangeable.
Order the code your car already has. If you are planning a conversion rather than a replacement, say so and we will treat it as a project, not as a like-for-like engine.
Can I replace an N55 with a B58?
No. They are both petrol six-cylinders, and buyers often cross-shop them, but the B58 is a newer modular engine. The wiring, the sump, the mounts, and the engine management are different.
For a replacement, buy the code that is in the car. A 335i of the F30 era is typically an N55. A 340i is typically a B58. The VIN settles it in one message.
Is an S58 a straight swap for a B58?
No. The S58 is the M engine in current M3 and M4 cars. The B58 is the engine in cars such as the 340i and 540i. They share a family resemblance and they do not share a bay, a loom, or a calibration.
Buy the S58 for an S58 car and the B58 for a B58 car. If you are building a conversion, tell the desk at the start so we do not sell you a replacement engine for a project that needs a kit.
Will a manual-car engine fit an automatic car?
Only with the right flywheel, clutch or flexplate, and gearbox. The long-block code can be shared while the back of the engine is not. Fitting the wrong one is how a straightforward job becomes a standstill.
Tell us manual or automatic when you enquire. We will sell you an engine that suits that gearbox, or we will tell you which parts to keep from the engine you are removing.
Engine codes people compare
What should I check before buying a used N47?
Confirm the exact code, such as N47D20C or N47D20A, and the chassis it came from. The N47 is the 2.0 diesel workshops replace most often, and the timing-chain history is the question buyers are right to ask.
We cannot promise a chain that was never in service. What we can do is sell you the code your car needs, show you the unit, and let your workshop decide whether a chain job belongs in the fitting. Ask for a photo of the stamp before you pay. We are happy to send it.
Is a used N47 still a sensible buy?
Yes, for the right car, when the code matches and a workshop is fitting it. Thousands of E90, F30, and X1 cars still run this engine, and a complete unit is often the clean way to finish a chain or bottom-end job.
Buy the listing that names your chassis family, keep the ancillaries your workshop wants to reuse, and budget the first-start parts: oil, filter, coolant, and a careful bleed. The desk will help you pick the listing. The workshop should do the fitting.
What should I ask before buying a used N20?
Ask for the full code, the year, and whether the timing-chain service is something your workshop wants to do while the engine is out. The N20 is a 2.0 petrol with a known chain topic, and a prepared buyer is a calm buyer.
Send the VIN so we do not confuse it with a B48 or a B46. If you want extra photos of the front cover and the stamp, ask before you pay. We will send what we have of that unit.
What should I check on a used B47?
Check the exact code, such as B47D20A, and the car it came from. The B47 is the modular successor to the N47, used in later 1, 2, 3, and 5 Series cars and in the X3. It is not a substitute for an N47.
A matching B47 is a straightforward replacement when the loom and the gearbox side agree. Ask the desk to confirm emissions equipment and the sump before you pay, especially on xDrive. We will tell you what is on the engine.
Should I buy an N55 or a B58?
Buy the one your car was built with. The N55 suits the cars that left the factory with an N55, such as many 335i and 535i models. The B58 suits later 340i, 440i, and 540i models.
Both are strong petrol sixes and both are in the yard when the listing says so. They are not a swap for each other. Send the VIN and we will point at the right family with no upsell into the wrong code.
Should I buy an N54 or an N55?
Match the car. The N54 is the earlier twin-turbo six, famous in the 135i and 335i. The N55 is the later single-turbo six. Injectors, turbos, and the management differ.
A used N54 is a good buy for an N54 car when you go in with your eyes open about the turbos and the injectors. Tell us the year. We will not sell you an N55 block for an N54 bay.
What should I know about N57 swirl flaps before I buy?
Some N57 engines have swirl flaps in the inlet, and workshops like to know that before the engine is in the car. Ask us which intake is on the unit you are looking at, and decide with your fitter whether the flaps stay, are blanked, or are replaced.
We will describe the engine we are selling. We will not pretend every N57 is the same. The code, the year, and a photo of the inlet are the right checks, and you can ask for that photo before you pay.
Should I buy an M57 or an N57 as a replacement diesel?
Buy the family that is already in the car. M57 for the older E-chassis six-cylinder diesels. N57 for the later F-chassis cars. A conversion from one to the other is a project, not a weekend swap.
If you are putting an M57 into a Defender or a similar kit, say that at the start. Those kits are listed as packages, with the parts that make the engine belong in that bay. A replacement for a BMW should stay a BMW replacement.
What should I ask about a used S55?
Ask for the exact code, the mileage on the listing, the car it came from, and which turbos and ancillaries are still fitted. The S55 belongs in F80 M3 and F82 M4 cars. It is not an upgrade bolt-in for an N55 335i.
These are specialist engines and we treat the questions as normal. Extra photos, a reading of the stamp, and a clear list of what is included are all reasonable requests before you pay. Ask, and the desk will answer on that unit.
What should I check on a used N63?
Check the exact version, the year, and the car. Early N63 engines and later N63 engines are not identical, and the hot-vee turbos mean a workshop should plan gaskets, coolant, and a careful first start.
We will sell you the version your VIN calls for, and we will say what is on the engine. A matching N63 from the right years is a sound way to finish a car. A nearly-right N63 is not. We will help you tell them apart.
What should I know before buying a B48?
The B48 is the modular 2.0 petrol used in later BMW and Mini cars. Confirm the exact code, such as B48B20A, because tune and emissions equipment change the ancillaries even when the badge looks the same.
Send the VIN, especially if the car is a Mini or a lower-powered BMW. We will match the code rather than the trim name. A correct B48 is a simple order. The wrong variant is not, and we will not talk you into it.
Is a high-mileage diesel still worth buying?
Often, yes, when the code is right and the price reflects the miles. A complete diesel with a known code is frequently a better workshop decision than another short repair on a tired block.
Read the mileage on the listing and ask anything it does not answer. We do not invent a low figure. We would rather sell you a clearly described engine than a mystery one.
What is a used N13 like to buy?
The N13 is the 1.6 petrol used in some smaller BMWs, related to the Prince family. Buy it for a car that already has an N13, and have the workshop look at the chain and the cooling while the engine is out.
Send the VIN so it is not confused with an N20 or a B38. If we have that code, the listing will say so, and you can ask for photos before you pay.
Do you sell Mini and BMW B48 engines?
Yes, when the listing is a B48. Minis and BMWs can share that family and still differ in mounts and ancillaries. The code and the donor car matter more than the badge.
Send the VIN of the Mini or the BMW. We will say whether a listed unit matches, and we will say so before you pay.
Do you sell engines that are not BMW?
Yes. The yard also lists engines such as Toyota 2JZ, Nissan RB26, and Honda K24, described with the same code, donor, and photo habits as the BMW units.
Search the code or ask the desk. If it is not listed, we will say it is not listed. We do not promise a unit we do not have.
Which engine is in that BMW
Which engine is in a BMW 320d?
It depends on the year. Earlier 320d cars commonly have an N47. Later ones have a B47. The boot badge does not tell you which.
Send the VIN or the year and the chassis, such as E90, F30, or G20. We will name the code and show you listings that match it. That is a safer start than opening every 320d page.
Which engine is in a BMW 330d?
Older 330d cars often have an M57. Later E90 and F-chassis 330d cars move into the N57, and some newer six-cylinder diesels are B57. The year decides.
One VIN check separates them. Tell us the car you have, and we will stay on that code so the engine on the pallet is the engine the workshop expects.
Which engine is in a BMW 520d?
A 520d is usually a 2.0 diesel: N47 in many E60 and F10 cars, B47 in later G30 cars. There are year overlaps, so the VIN is the clean answer.
Once we have it, we can point at the right listings the same day during desk hours. You do not have to browse the whole diesel catalogue.
Which engine is in a BMW 530d?
Earlier 530d cars are often M57. F10 and similar cars are often N57. Later G30 530d cars can be B57. Those three are not interchangeable.
Send the VIN before you choose a listing. We will tell you which of the three you need, and we will only offer that family.
Which engine is in a BMW 335i?
An E90 or E92 335i is commonly an N54 in the earlier years and an N55 later. An F30 335i is an N55. None of these is a B58. The B58 belongs in the 340i.
If you tell us the year, we can already narrow it. The VIN finishes the job. You will know which code to buy before any money moves.
Which engine is in a BMW 340i?
A 340i is a B58 car. It is not an N55, and it is not an S58. The S58 is the M3 and M4 engine of the following generation.
Order a B58 that matches the year and the drivetrain, and mention xDrive if the car has it. We will check the sump and the ancillaries with you.
Which engine is in a BMW M3 or M4?
It follows the generation. An E46 M3 is an S54. An E90 or E92 M3 is an S65. An F80 M3 or F82 M4 is an S55. A G80 M3 or G82 M4 is an S58.
These are not upgrades for the standard 320i or 330i in the same body. Send the VIN of the M car and we will stay on that S code. It is the right engine, and we are glad to help you find it.
Which engine is in a BMW 118d or 120d?
Most of these are 2.0 diesels: N47 in the earlier F20 cars, B47 in the later ones. A few petrol models in the same series use a completely different code.
Do not buy from the model name alone. Send the VIN. Matching a 118d or 120d is everyday work for the desk, and the check is free.
Which engine is in a BMW X5 30d or 40d?
An X5 diesel six is usually an M57 in the older E70, an N57 in later E70 and F15 cars, and a newer modular code only when the year says so. 30d and 40d can share a family and still differ in turbo and output.
Send the VIN and say whether the car is xDrive, which it usually is. The oil pan matters. We will match both the code and the drivetrain.
Which engine is in a BMW 730d or 740d?
These are diesel sixes: N57 in many F01 cars, and later modular diesels in the G-series. A 740d is not a petrol V8. The N63 is the petrol twin-turbo V8 in cars such as the 750i.
Tell us 730d or 750i in plain words and send the VIN. We will not let a search for a diesel land on a V8 listing.
Condition, photos, and mileage
Are the engines tested on a running stand?
The yard does not crank a pallet engine to invent a compression number or a running video that the unit never had. What you can trust is the code on the listing, the parts written on it, and the photos when that listing has them.
If you want a closer look before you pay, ask. We send photos or a short clip of that unit when we can. You are free to wait for those pictures. A careful buyer is welcome here.
Do listings include a compression figure?
No. We do not print a compression number we did not measure, and we do not measure one by cranking an engine that is drained and on a pallet.
Your workshop can test the engine in the car after a correct fill and a proper start. Until then, judge the listing by the code, the donor, the mileage, and any photos. Ask the desk if something you need is not written down. We will answer on that unit.
Are the photos of the real engine I will receive?
When a listing shows photos, they are of that engine, not a catalogue picture of a different one. You should see the unit that will be strapped to the pallet.
If you need the stamp, the turbo, or the sump in particular, ask for those frames before you pay. We are happy to take them. Seeing the engine is part of buying with confidence.
What if a listing has no photo yet?
Some listings are published from the code, the donor car, and the mileage before a full photo set is attached. That does not mean the engine is a mystery, and it does not mean you should pay blind.
Ask the desk for pictures of that unit. If we can photograph it, we will, and you can decide afterwards. If we cannot show you what you asked for, we will say so, and you can choose another listing.
What mileage is still acceptable?
There is no single cutoff. A well-described higher-mileage diesel can be the right buy, and a low figure is only useful if it is the real figure from that unit. We print the mileage we have. We do not improve it.
Compare the miles with the price and with the job your workshop is doing. If the listing does not state a figure, ask. An honest gap is better than a rounded guess, and we will not invent one to make the sale easier.
What does a complete engine include?
It means the long-block as described on that listing, with the ancillaries that are still bolted on and named in the text. It does not mean every hose and bracket from the donor car, and it does not mean the gearbox unless the listing says gearbox.
Read the included list, then ask about anything your job needs: turbo, injectors, inlet, sump, flywheel. We will tell you yes or no before you pay, so the workshop is not surprised when the pallet arrives.
Is the turbo included?
When the turbo is still on the engine and the listing says so, yes. A turbo can also have been removed, and then it will not be described as included.
Ask on the unit you are buying if the line is unclear. We will look at that engine and answer. Please do not assume every diesel leaves with its turbo just because the family is turbocharged.
Are the injectors included?
Often they are still fitted, and the listing should say so. Injectors are also one of the parts a workshop sometimes wants to keep from the old engine, especially on a diesel.
Tell us your plan. We will confirm what is on the unit. If you need a specific injector code, send it. Matching that detail before payment is exactly what the desk is for.
Do you sell engines with a known fault?
We do not describe a failed engine as a healthy one. If a unit is incomplete or is being sold for parts, the listing has to say that. A normal complete-engine listing is a unit we are prepared to stand behind under the warranty terms.
If you are looking for a repairable core, say so. We will not dress it up as a ready-to-fit engine. Clear language protects you and it protects the yard.
Can I ask for more photos before I pay?
Yes. Please do. Ask for the stamp, the sump, the turbo, the inlet, or a short video. Buyers who ask these questions get a calmer delivery day, and we are glad to send the pictures before any payment.
Email autowerkeengines@gmail.com or use WhatsApp on +49 15510 030835, and include the listing you mean. During Monday to Friday, 9:00 to 16:00 CET, the desk answers those requests as part of the sale, not as a favour you have to earn.
Shipping from Hamburg
How much is shipping?
Shipping is a flat 249 € on a standard engine order. It is added once, shown before you pay, and printed on the invoice. You should not see a second freight bill from us after the pallet leaves.
A few heavier conversion kits show their own pallet rate on the listing. That rate, if it applies, is the one to read. Everything else is the 249 € fee.
How fast does the engine leave Hamburg?
An order confirmed before 14:00 CET on a working day leaves the same day. An order confirmed later, or over the weekend, leaves the next working day.
Leaving Hamburg is the collection day, not the day it reaches your ramp. You still get a tracking reference when the carrier takes the pallet, and you can follow it from there.
How long does delivery take?
Netherlands, Belgium, Germany, France, Luxembourg, and Denmark are typically 1 to 3 working days. Spain, Italy, Portugal, Poland, Czechia, Austria, Ireland, the Nordics, and the Baltics are typically 2 to 5.
Islands and remote regions can take 4 to 8 working days. The United Kingdom and other non-EU addresses are quoted for transit. These are normal carrier times, and we would rather quote the real lane than promise an overnight pallet that freight cannot do.
Do you ship to the United Kingdom?
Yes. UK orders leave Hamburg on a pallet with a commercial invoice. Import VAT and any duty are paid by the buyer in the UK, which is the normal rule for a commercial engine shipment.
The shipping fee we charge is still the flat fee on the invoice. Ask the desk for the paperwork your broker will want before you pay, and we will set it out.
Who pays customs and import VAT?
Shipments inside the EU move without customs duty. For the UK and other non-EU destinations, import duty and import VAT are paid by the buyer, not hidden in our shipping fee.
Our 249 € is the transport fee on the invoice. Local import charges are between you and customs. We help with the invoice so that part is straightforward.
How is the engine packed?
It is drained, the openings are sealed, and it is strapped to a heat-treated pallet and wrapped. Open faces get board and foam. The crate is photographed before it leaves the yard.
That is the packing you should expect on a complete engine. It is ready for a carrier, and it is protected against the ordinary knocks of pallet freight. It still needs a proper unload at your end.
Do I need a forklift or a crane?
Yes. Carriers deliver to a kerbside or a loading bay. Please have a forklift, a pallet truck, or an engine crane ready. A car engine on a pallet is not a parcel that one person lifts out of a van.
If the address has restricted access, tell us before dispatch. We would rather plan the delivery than have the carrier turn away.
How do I track the pallet?
You receive a tracking reference when the pallet is collected. Use it to watch the carrier's scan. The desk can help you read a status if it is unclear.
Collection from Hamburg is the moment tracking starts. Until then, the engine is being sealed and strapped. We do not mark an order as sent before the carrier has it.
What if the pallet arrives damaged?
Inspect it before you sign. If the wrap is torn or the frame is crushed, note that on the carrier's paperwork, photograph it, and contact us the same day.
Those photos and the note on the paperwork are what let us act quickly for you. A same-day message, with the order number, is the right start, and we will take it from there.
Can you ship to a workshop instead of my home?
Yes. A workshop address is often the better delivery, because the ramp, the crane, and the fitter are already there. Put that address on the order.
We can note a contact name and a phone number for the driver. Tell us any gate time or yard restriction. The pallet should arrive where it can actually be unloaded.
Payment and the invoice
Which payment methods can I use?
Bank transfer, a secure card link, USDT, or Bitcoin. Card brands on the link are Visa, Mastercard, and American Express. Local methods such as iDEAL or Bancontact can be offered for the delivery country.
You never type a card number into the engine listing pages. The card payment is a secure link we email after the order. Crypto is sent only to the address and, for USDT, the network named in that email.
Is card payment safe?
Yes. The card payment runs on a secure link, with 3-D Secure where the bank asks for it. We do not see or store your card number.
Pay only through the link in the order email from the desk. If a message ever looks wrong, call us on the published number before you pay. We would rather check an email with you than have you unsure.
Can I pay by bank transfer?
Yes. We email the bank details for that invoice. The engine stays held for five working days while the transfer clears, then it is dispatched.
Use the reference we give you so the payment lands on the right order. When it clears, we confirm and the pallet is prepared. You are not left wondering whether the hold is real.
Can I pay with USDT or Bitcoin?
Yes. After the order we email the amount in euro and the address to use. For USDT we also name the network. Send only on that network. A transfer on a different network is not a payment we can see.
The engine stays reserved while the transfer confirms, then it is dispatched. If you are new to this, use bank transfer or the card link instead. Both are everyday options, and either one is a complete way to pay.
When is the engine reserved for me?
When the payment route is confirmed: the transfer is underway against our invoice, or the card, USDT, or Bitcoin payment is seen. We then keep that unit for your order.
A question, a VIN check, or a photo request does not stop you reserving afterwards, and it does not by itself reserve the engine. When you are ready, say so. We will take the reservation properly so nobody else is offered that unit.
Do you take a small deposit?
The usual order is payment for the engine and the shipping shown on the invoice. A bank transfer gives you five working days of hold while it clears, which is the breathing room most buyers need.
If your case is different, ask the desk before you send money. We would rather agree the hold in writing than have a partial payment that neither side understands.
Is VAT included in the price?
Consumer prices include VAT at the rate that applies. A VAT invoice is issued with the order and emailed when the engine is sent.
Business buyers who need the invoice in a particular name should say so before payment. We will put the paperwork right at the start, which is much easier than correcting it after dispatch.
Will I receive a proper invoice?
Yes. The invoice shows the engine, the shipping fee, and the total. It is emailed, and it is the document that matches the pallet.
Keep it with the order number. You will want both if you ever need the warranty or a delivery question. The desk can resend the invoice if it is not in your inbox. Just ask.
Can a workshop open a trade account?
Yes. Approved workshops and fleet operators can ask for 30-day terms. Write to autowerkeengines@gmail.com with the company details and we will tell you what we need.
Until an account is agreed, the normal payment methods still get the engine reserved and shipped. A trade account is an extra convenience, not a barrier to buying the right engine this week.
Warranty and returns
Is there a warranty on a used engine?
Yes. Eligible engines from Bav Engines are covered for 12 months from the delivery date. The cover is for internal mechanical failure under normal use, after correct fitting by a qualified mechanic or workshop.
Ask the desk if you want the warranty sheet with a particular unit. We are glad to send it before you pay, so you know the cover you are buying, not only the engine.
What does the 12-month warranty cover?
It covers internal mechanical failure that comes from a defect in the engine itself, in normal use, after a correct installation. If a claim is approved, we repair, replace, or refund that engine.
It is real cover for the engine you bought. It is not a service plan for the rest of the car. Read the warranty page, and ask us to apply it to the listing you are considering. We will answer in plain words.
What is not covered by the warranty?
Incorrect fitting, a lack of oil or coolant, overheating, the wrong fluids, and any modification or strip-down done without our written approval are outside the cover. Labour, towing, recovery, and other consequential costs are outside it too.
Those limits are there so the cover stays meaningful for a real engine fault. Fit it properly, fill it properly, and call us as soon as something seems wrong. That is how a claim starts well.
Who has to fit the engine for the warranty to count?
A qualified mechanic or workshop. The correct oil, coolant, filters, and service parts have to be used. Please do not treat a pallet engine as a do-it-yourself experiment if you want the 12 months to stand.
A good independent workshop is exactly the right place. You do not have to use a dealer. You do have to use someone who fits engines for a living.
How do I make a warranty claim?
Contact the desk straight away with the order number, a description of the fault, and photos or video. If we ask for a mechanic's report, send that too. Write to autowerkeengines@gmail.com or call +49 15510 030835.
Do not strip or repair the engine before we agree, because an unapproved strip can end the cover. If the claim is approved, we repair, replace, or refund the engine. You will not be left to argue with a silent inbox. We answer.
Can I return an engine if I change my mind?
Returns are accepted within 14 days of delivery when the engine has not been installed or run, is back in its original condition and packing, still has every part we sent, and the return was agreed by us first.
Contact the desk before you send anything back. An unagreed return cannot be accepted. Original shipping is refunded only when the return is our error. This policy is there so a genuine change of mind is possible, as long as the engine is still a fresh, unfitted unit.
What if you send the wrong engine?
Tell us as soon as you see it. Photograph the stamp and the label, and do not fit it. A wrong engine is our error to correct.
We would rather collect and replace than have you adapt a mismatch. Message the desk the same day, with the order number. We will take it seriously and we will sort it out.
What if I ordered the wrong code myself?
Contact us before it is fitted, and before the 14 days are gone if you want to return an unused engine. If it has not been installed, a return can be agreed under the returns rules.
This is also why the VIN check exists. Use it. If you are unsure between two codes, we will hold the order conversation until the right one is clear. Ordering the right engine first is the easy path, and we will help you do that.
What if the engine arrives incomplete?
Compare it with the listing and the invoice the same day. Photograph anything missing and contact the desk. If we left off a part the listing promised, we make that right.
Please check against the listing, not against a hope that every bracket from the donor car was included. Where the listing promised a part and it is not on the pallet, that is for us to fix, and we will.
Fitting and the first start
What should I do before the first start?
Fill it with the correct oil and the correct BMW coolant mix, fit a new oil filter, and check every hose clip. Use new gaskets where the workshop has separated a joint. Make sure the engine has oil at the turbo feed before a turbo engine is cranked.
On a diesel, bleed the fuel system fully. On a petrol, check the plugs and coils. The first start should be a planned workshop job, not a quick crank in a car park. Do this and the engine is given a fair beginning.
What oil should I use?
Use the grade BMW specifies for that engine code, not a generic oil chosen only by the viscosity number on the shelf. The workshop should also fit a new filter at the same time.
If you tell us the code, we will remind you to follow BMW's specification for it. The right oil is one of the simplest ways to look after a freshly fitted used engine, and it is part of keeping the warranty valid.
Should the workshop replace the timing chain while the engine is out?
On families with a known chain history, such as many N47 and N20 engines, workshops often do the chain, guides, and tensioner while the engine is on the bench. That can be good workshop practice. It is a decision for the fitter, based on the engine in front of them.
We do not require a chain job for the sale, and we do not pretend every chain is new. Ask your workshop to advise. If you want photos of the front of the engine before you buy, ask us and we will send them.
What should the workshop check when the pallet arrives?
Check the code stamp against the listing before the engine goes on the crane. Check the sump if the car is xDrive. Check that the turbo, injectors, and flywheel match what was ordered. Photograph the pallet before the wrap comes off if anything looks damaged.
This takes minutes and it confirms you received the engine you bought. If anything disagrees, stop and call the desk. We would rather pause a fit than undo one.
Can I fit the engine myself and keep the warranty?
The warranty requires fitting by a qualified mechanic or workshop, with the correct fluids and filters. A careful private owner can still organise that. The person who turns the spanners needs to be qualified.
If you have a trusted local workshop, that is enough. You do not need a main dealer. Tell them it is a used engine from Hamburg with 12 months of cover, and give them the invoice.
Do you fit engines in Hamburg?
The yard supplies and ships engines. Fitting is done by the buyer's workshop, which is the right place for the wiring, the coding, and the first start on that car.
We will help the workshop with what is included and with the code match. We will not leave them guessing about the unit. The fit itself stays with them, on a ramp built for it.
What extra parts should I budget for?
Budget fresh oil, a filter, coolant, and the gaskets the workshop opens. A tired belt, thermostat, or water-pump seal is cheaper to replace while the engine is out. A diesel needs a proper bleed. A turbo engine needs oil in the feed before the first start.
These are normal fitting costs, separate from the engine price and the 249 € shipping. Planning them now makes the first week with the engine uneventful, which is what you want.
Will the car need coding after the swap?
A like-for-like engine usually needs the workshop's normal procedures: adaptions, a battery, and a check for fault codes. A different code, even a close one, can need a loom and a calibration the car does not have.
Stay on the original code unless you have planned a conversion. Tell your workshop the exact code on the invoice. If they have a question, they can write to the desk. We answer fitters, not only the person who paid.
What fluids besides oil does the engine need?
Coolant to BMW's mix for that engine, and the correct specification of oil. A diesel fuel system must be bled. Power-steering or cooling hoses that were open should be refilled and checked for leaks before a road test.
Do not start a drained engine and hope the old oil film is enough. It was drained for shipping, on purpose, so it would travel cleanly. Filling it properly is the first job, and then it is ready.
Talking to the desk
How do I contact the desk?
Call or WhatsApp +49 15510 030835, email autowerkeengines@gmail.com, or use the contact page. Signal is on the same number. The yard is at Andreas Meyer Straße 38, 22113 Hamburg.
Include the listing, the VIN, and the question in the first message. We can usually answer fitment, photos, shipping, and payment in that same conversation. You will reach a person who can see the engines, not a call centre reading a script.
What are the desk hours?
Monday to Friday, 9:00 to 16:00 CET. Orders confirmed before 14:00 CET on a working day can leave Hamburg the same day.
A message sent in the evening or at the weekend is answered on the next working morning. The engine you asked about stays subject to the listing until it is reserved. Write anyway. We start on it as soon as the desk opens.
Can I use WhatsApp or Signal instead of email?
Yes. WhatsApp and Signal both work on +49 15510 030835. They are a good way to send a VIN, a photo of a stamp, or a listing link.
Email is better when you need the invoice thread in one place. Use whichever you prefer. We answer all three, and you do not have to set up an account with us before you ask a question.
Can you match an engine if I only know the model and the year?
Often, yes. Model and year get us to the likely family, such as N47 or B47 for a 320d. The VIN is what makes the answer certain, and it is worth sending even if you think you already know.
Start with whatever you have. We will tell you what is still missing. Most buyers arrive with a model name and leave the conversation with an exact code. That is a good outcome, and it costs nothing.
What should I send in my first message?
Send the VIN if you have it, the year, the model, whether the car is xDrive or manual, and the listing if you have already found one. A photo of the engine bay sticker helps when the VIN plate is hard to reach.
You do not need a long technical letter. Those few facts are enough for us to say which code you need and whether we have it. The rest of the detail can follow.
What happens after I send my VIN?
We read the car, name the engine code, and tell you whether a current listing matches, including the points that often catch people out: gearbox, xDrive sump, and the ancillaries you care about.
You then decide. If it matches, you can order with confidence. If it does not, we look at another unit or we tell you we do not have it. Either answer is a useful answer, and you will get one.
I am ready to buy. What is the best next step?
Send the VIN and the listing you want to autowerkeengines@gmail.com or on WhatsApp at +49 15510 030835, or place the order on the site if you already know the code matches. Check that the total shows the engine and the 249 € shipping.
Pay by transfer, card link, USDT, or Bitcoin. We reserve the unit, pack it in Hamburg, and send the tracking when it is collected. If you want the warranty wording or an extra photo first, ask now. We will send it, and then you can pay with the answers in hand.
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CertificateInspection record from the yard
GuideHow to buy an engine