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640d Engine for Sale

BMW 640d Engines

Model Name Engine code Year Engine size Chassis Fuel KW HP Cylinders Valves
6 Gran Turismo (G32) 640 i Mild-Hybrid JA1 2020-2025 0cc 1 Petrol/Hybrid 81 01 01 01
6 Gran Turismo (G32) 640 i Mild-Hybrid B58 B30 C 2020-2025 2998cc 1 Petrol/Hybrid 1551 2651 61 241
6 Gran Turismo (G32) 640 d xDrive B57 D30 B 2017-2020 2993cc 1 Diesel 1551 2501 61 241
6 Gran Turismo (G32) 640 i B58 B30 A 2017-2020 2998cc 1 Petrol 2391 2651 61 241
6 Convertible (F12) 640 d xDrive N57 D30 B 2011-2016 3.0 F121 Diesel 2201 2301 61 241
6 Convertible (F12) M6 S63 B44 B 2012-2016 4.4 F121 Petrol 4121 4671 81 321
6 Convertible (F12) 640 i N55 B30 A 2011-2016 3.0 F121 Petrol 2001 2721 61 241
6 (E63) M S85 B50 A 2005-2010 5.0 E631 Petrol 3731 01 101 401

Save Up to 40% on BMW 6 Series 640d Engine Replacement

If you are looking for BMW specialists for your BMW 6 Series 640d engine replacement, then you are in luck. As BMW only engine specialists with over 25 years of hands on experience, we have supplied and fitted thousands of BMW power units across the UK. We offer excellent, low mileage used BMW 640d engines at affordable prices and provide reconditioned BMW 640d engines that perform as well as a new engine. You can trust the ability of our trained mechanics with over 25 years of experience to rebuild the BMW 640d engine to factory standard.

The depth in our stock allows us to match the correct N57 diesel engine to your specific model with complete precision. From early F12 and F13 variants to later Gran Coupe versions, we offer used and reconditioned engines, our technicians offer factory grade engine fitting services, and can deliver the engine to anywhere in the UK. Every engine we deliver comes with up to 12 month warranty for complete peace of mind.

BMW 640d Engine Variants We Offer and Work With

Our 25 years of experience allow us to deal with reconditioning and fitting the full range of BMW 640d diesel engine variants used across the 6 Series lineup. During those years, we have noticed that the N57D30B 3.0 L twin turbo diesel engines fitted to the F12 Convertible, F13 Coupe and F06 Gran Coupe models are the most popular among BMW drivers. We have complete units available as low mileage used engines, fully reconditioned replacements and rebuild ready cores across all generations of the BMW 640d.

You can choose from our extensive stock of earlier, closely related M57 diesel variants used in previous BMW diesel platforms. We ensure that every engine is matched by the engine code, generation and vehicle specification to ensure correct compatibility across drivetrain layouts and production years.

Quality BMW N57D30B engine for sale

The standard 640d engine code is N57D30B, and BMW also refers to this unit as the M57D30 (306D5) in earlier 6 Series models. The F12 convertible, F13 coupe and F06 Gran Coupe share the same engine code and similar power output. When buying a replacement engine, it is essential to select the right code and capacity. Our stock includes complete engine N57D30B units and N57D30B engines for the BMW 6 Series F12 and F13. We also carry other 6 Series engines – such as the N52B30A, N62B44A and N63B44A – for customers with petrol models. Each engine is checked for oil pressure, compression and timing chain condition before sale, and we record the vehicle identification number so that you can match the right engine for your BMW.

What are the common BMW 640d engine problems?

The BMW 640d uses the N57D30B straight-six diesel engine. Owners of the F12 convertible and F13 coupé models should know about a few common N57D30B problems.

A major concern is the timing chain. This chain is at the back of the engine and can stretch over time. This leads to rattles, especially at start-up. If the n57d30b timing chain fails, it causes big engine damage, often needing a full replacement or rebuild. Main and connecting rod bearing wear is another serious issue, often linked to low oil pressure at low engine speeds. Bearing failure can mean you need a replacement 6 series engine for sale. The n57d30b turbo unit can also have problems, especially on higher mileage cars. Furthermore, the exhaust gas recirculation (EGR) valve and cooler can get blocked with carbon soot. This causes rough running and poor fuel economy. Regular, more frequent oil changes are crucial to help stop these problems and keep the engine running well. Always ensure that any replacement parts will fit in your vehicle correctly.

How Do We Source Our BMW 640d Engines & Maintain Quality?

An engine replacement is not worth its salt if it does not provide the performance and reliability that the owner of the vehicle craves. This is the reason we have developed a strict quality approval process to meet the high standard we set. It starts with us selecting the donor vehicles from verified sources and making sure the cars are accompanied with full service history. Mileage verification is done from its ECU, and BMW diagnostic scanning is done to identify fault codes, sensor irregularities and control unit data.

Our mechanics confirm the mechanical integrity through compression and leak down testing, along with visual and physical inspection of critical components such as the turbocharger, cooling system, and timing chain. Units that fail to meet our standards are rejected outright. We uphold our standards and approve fewer engines to ensure long term reliability and performance.

Transparent BMW 520d Engine Pricing, UK Delivery & Professional Fitting Support

The price of the replacement engine is one of the most important aspects of the whole process, and every driver is wary of paying more than he should. This is the reason we strictly maintain transparent prices for our engines. Used BMW 640d engines typically range from approximately £2,000 to £3,200, while fully reconditioned BMW 640d engines go between £3,800 and £6,500+.

However, the final price depends upon mileage, overall engine condition, warranty duration, and whether the engine is supplied only or professionally fitted. We offer all the engines with fast nationwide delivery across the UK, or you can opt for our in house precision installation, calibration and performance validation. You can simply book an appointment by filling out the simple form, and our dedicated team of representatives will take care of it.

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