Quality BMW 520d Engines for Sale: Used & Reconditioned Units - Up to 12 Month Warranty

BMW 520d Engine Rebuild and Replacement Specialists - Save Up to 40%

At BM Engine Works, we are the UK's only BMW engine specialists with over three decades of hands-on experience in supplying, rebuilding and fitting BMW 520d engines across the UK. Our inventory has a huge stock of second hand BMW 520d engines. We source low mileage used BMW engines from reputable suppliers. Every unit is thoroughly tested and inspected to ensure it performs to factory standards and is ready for the UK’s roads.

We also have reconditioned BMW 520d engines that perform as good as the brand new engine but at half the price. Or, if you want, you can also get your original BMW 520d rebuilt professionally and enjoy worry-free driving for years. This service supports every generation of the BMW 520d, from the early E60 models through the F10 range to the latest G30 series.

Just enter your vehicle reg number to receive a no-obligation price quote. You can select supply only or complete supply and fit service. BMW 520d complete engine supply and fit service is our speciality because this way you can get the quality engine service under one roof and save up to 40%. Fast turnaround, vehicle recovery and engine delivery option also available upon customer request. Free expert advice helps you find the right engine code, such as B47D20B, N47D20C, B47D20A, and many more, and we also recommend the best engine oil for your BMW 520d to ensure your replacement service lasts. These extras, combined with the satisfaction guarantee, make us the best choice for BMW owners.

Common 520d Diesel Problems, Causes And Our Engine Solutions

These engine-related faults can occur on UK-market cars. The cause needs testing, and some faults can be repaired without replacing the engine.

Stop safely and switch off the engine if you see an oil-pressure warning, the engine overheats or you hear heavy knocking.

Find The Right Engine For BMW 520d Models

M47, N47 and B47 are the main diesel engine families used across the 520d range. They are not direct replacements for one another. Even within the same family, engine versions can have different parts and control systems. Codes such as N47D20A and N47D20C need individual checks, even though both belong to the N47 family. We use your registration, VIN and full BMW engine code to identify a suitable unit. The build date, power output and emissions equipment also matter. An engine advertised for an F10 Saloon, for example, still needs checking against the car it will be fitted to. Matching only the badge or the engine size can lead to the wrong purchase.

Tell us whether you have a Saloon or Touring, an automatic or manual gearbox, and rear-wheel drive or xDrive. These details help us check the installation requirements and the parts that need to stay with your car. M Sport is a trim level, so it does not identify the engine on its own. If you do not know the code, send your vehicle details and let us check it. Include any details of a previous engine change or modification, as the fitted unit may differ from the original specification. We can then discuss suitable stock and the supply or fitting service you need.

Used and Reconditioned BMW 520d Engine Replacements

Used engines come from donor vehicles and retain the wear from their previous use. We inspect and test the units we supply, but you should still ask about the available mileage and service history. A lower mileage figure is useful only alongside evidence of condition. Ask which checks have been completed and what parts are included. When comparing a BMW 520d engine for sale, check whether the price is for a bare unit or an engine with extra parts. A turbocharger, injectors and fuel pump may need to be bought separately or transferred from your existing engine if they are fit to reuse.

Reconditioning involves taking the engine apart, cleaning it and checking the internal parts. At our in house rebuilding facility, we inspect components such as the cylinder head, crankshaft, pistons and bearings. Measurements show what can be reused and where machining or replacement parts are needed. The rebuild follows the damage found in that unit. Oil passages also need careful cleaning after a failure, since loose metal from damaged parts can harm the rebuilt engine. If your original engine is suitable, we can discuss rebuilding it. Severe cracks or extensive internal damage may make a replacement the better choice. We explain the work required so you can judge the cost against the condition of your car and the use you expect from it.

BMW 520d Engine Replacement: Fitting& Warranty

With our supply and fit service, your car comes to our workshop for engine removal, installation and testing. Vehicle recovery is available if it cannot be driven. We check the systems connected to the engine, because an unresolved oil supply, cooling or fuel fault can damage the replacement. The work can include fluids, filters, seals and any required diagnostic checks or coding, as set out in your quote. After fitting, checks cover leaks, running temperature, oil pressure and fault codes, with road testing where appropriate. If your own garage is handling installation, our supply-only option includes access to nationwide engine delivery. Confirm delivery and fitting dates before making plans around the car.

BMW 520d Engine Replacement Cost

Your final price depends on the engine version, condition, parts needed and whether we are supplying or fitting it. Request an itemised quote and check the total payable, including VAT, labour and any recovery or delivery charge. Also confirm which existing parts will be reused, which need replacing and whether anything remains subject to inspection. Warranty options can run for up to 12 months, depending on the engine and service selected. Send BM Engine Works your registration, mileage and a short description of the fault. We will check the suitable options and provide a quote for the work your car needs.