When a BMW 5 Series engine begins to lose power or shows an engine management light, you don’t have to replace the whole car. A quality replacement engine will restore performance and keep your 5 Series on the road. We specialise in supplying and fitting BMW 520d engines. Every unit, whether you need a 2010, 2011, 2012, 2015, 2016, 2017 or 2018 BMW 520d engine, is sourced from trusted suppliers and is compression and leak tested. Our technicians use BMW approved diagnostic equipment and follow factory procedures, ensuring each engine is installed correctly. You benefit from up to 40% discount when you enquire online and a free warranty of up to 24 months.
Our process is simple: provide your registration, receive a price quote and choose supply only or supply and fit. We offer fast turnaround, vehicle recovery and secure delivery option. Free expert advice helps you select the right engine code—whether it’s an N47D20C, B47D20A or the 2015 BMW 520d engine code—and we also recommend the best engine oil for your BMW 520d or BMW F10 520d to ensure your replacement service lasts. These extras, combined with our satisfaction guarantee, make us a trusted choice for BMW owners.
The BMW 5 Series has been the benchmark executive saloon since 1972. The 520d diesel engine is the most popular variant because it balances performance and economy. Early cars used M47 and N47 engines, while later F10 and G30 models moved to the B47. These 2.0 litre turbo diesel units deliver around 150 hp, 190 hp and up to 400 Nm of torque and pair with eight speed automatic transmissions. Later, B47 BMW 520d engines improve refinement and efficiency.
Every engine has vulnerabilities. Timing chain wear and failure are common on early N47 units; symptoms include whining or rattling noises and drivetrain malfunction warnings. A cracked plastic charge pipe can cause a sudden loss of boost and a loud pop sound. Some cars suffer from cam chain problems or general engine failure. Owners sometimes notice the BMW 520d engine noise change or the engine management light appears when the EGR or turbo is failing. Later B47 engines addressed several of these problems, but regular servicing and using the correct oil remain vital. Our specialists will diagnose issues and help you decide whether repair or quality replacement is the right solution.
Finding a BMW 520d engine for sale can be difficult because engine condition varies widely. We simplify your search by stocking a large range of used and reconditioned BMW 520d engines. Each engine is rebuilt or inspected to high standards and comes from verified suppliers. Because our engines are reconditioned in house, we can pass on substantial savings; customers enjoy up to 40% discount. A warranty of up to 24 months gives you peace of mind.
Our supply and fit service takes away the stress. Once you accept our price quote, we can recover your vehicle and install the replacement engine. We also offer a fast delivery option for customers who just need an engine. We stock engines for every version, including BMW 520d 2010 engine, BMW 520d 2011 engine for sale, BMW 520d 2016 engine, BMW 520d 2017 engine, BMW 520d 2018 engine and the BMW 520d B47 engine. Whether you drive a BMW 520d M Sport engine or are specifically searching for a BMW F10 520d engine for sale, our team will identify the correct code such as N47D20A, N47D20C or B47D20A and supply the matching unit. We also have BMW 520d M Sport engines for sale and can cater to other body styles, including Touring and xDrive. Supplying a 2012 engine with the right specs is no problem because our inventory spans the complete production range.
Choosing between a reconditioned and a used engine depends on your budget and how long you plan to keep your car. Used engines are removed from donor cars and tested; they are budget friendly but have an unknown history. A reconditioned engine is stripped, cleaned and rebuilt with tested or new components. Machining restores tolerances, and the unit is reassembled and tested to perform like new. Reconditioned units offer better longevity and include a warranty. We recommend them if you intend to keep your BMW for many years. For those who want to retain their original block, remanufacturing is available; your own engine is restored to factory specification and returned with a warranty.
During reassembly we use the correct lubricants and can advise on maintenance. The BMW 520d engine oil capacity is about 5 litres, and using the best engine oil for BMW 520d or the specific best engine oil for BMW F10 520d helps protect the timing chain and turbo. Following BMW service intervals and replacing components such as the charge pipe with improved parts reduces the likelihood of engine management lights or unusual noises.
Our workshop is staffed by BMW trained technicians and equipped with factory diagnostics. We control quality from sourcing through rebuilding to installation, ensuring that every engine supplied and fitted meets BMW standards. When you buy a BMW 520d engine from us, you benefit from:
Our quoting system gives you a clear, itemised price before any work begins. If you choose our supply and fit option, we recover your car, remove the old engine, install the replacement, and test it before handover to you. For supply only orders we deliver engines nationwide. Our combination of competitive pricing and high quality service reflects customer expectations.
A 2.0 litre, four cylinder turbo diesel. In the F10 generation it’s the N47D20 (2010–early 2014) and then the B47D20 (from 2014). BM Engine Works supplies both used and reconditioned units for all generations.
Typical service fill is ~5.2 litres (N47). Always confirm via iDrive/driver’s manual after filling.
Price depends on engine code (N47 vs B47) and whether you choose used or reconditioned with supply & fit or delivery only. Get an instant quote via the page (BM Engine Works advertises up to 40% off dealer prices and free warranty up to 24 months).
Warm the engine → drain oil → replace filter & seal → refit sump plug to BMW torque → fill (start with ~5.0 L), then top up to ~5.2 L and verify level in iDrive; reset service indicator. If you’d rather not DIY, BM Engine Works can do the service with the engine replacement/supply & fit work.
Common rail (CR) diesel — both N47 and B47 are CR systems (not PD).
F10 520d models use N47D20 pre upgrade and B47D20 after the upgrade. BM Engine Works specifically lists N47D20C and B47D20A among stocked options; just enter your REG/VIN to match the exact code.
2014 is the changeover year: early cars are typically N47D20 (184 hp); later 2014 cars moved to B47D20 (190 hp) — check the build date/VIN to be sure.
Use oil meeting BMW Longlife 04 (LL 04) — commonly 5W 30 — and follow the car’s condition based service.
In 2014, that’s when the F10 520d transitioned from N47 to B47 (many markets; exact month varies by build).
N47D20 (184 hp) in the launch years of the F10 5 Series.
If you need a BMW 520d engine for sale or a BMW 520d engine replacement, get in touch. Our stock covers every year from 2010 through 2018, including M Sport and xDrive models. Whether you require a reconditioned BMW 520d engine, a used BMW 520d engine or a complete supply and fit solution, we have the right engine at the right price. Contact us for a free price quote today and let our specialists return your BMW 5 Series to its best.
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