BMW 4 Series Fuel Pump Replacement Parts

The BMW 4 Series F32/F33/F36 generation ran from 2013 to 2020, with a facelift in 2017, so a 2014 and a 2017 car span that facelift boundary. The engine code is the critical factor here — if both cars share the same engine code (for example N20, N26, B47, or B58) the core pump unit is more likely to be compatible, but ancillary mounting details can change across a facelift revision. Give both registration numbers to the breaker and ask them to cross-reference the engine codes before committing to a purchase.

Yes, all BMW 4 Series variants have a fuel pump regardless of whether they are petrol or diesel — every internal combustion engine needs one to deliver fuel from the tank. On the 4 Series you will typically find a high-pressure pump driven by the camshaft on modern direct-injection engines, plus a low-pressure in-tank lift pump, so make sure you know which one you need before requesting quotes. Confirm with the breaker whether you need the high-pressure or in-tank unit, as they are priced and sourced separately.

For the mechanical fuel pump itself, body style — coupe, convertible, or Gran Coupe — does not affect fitment; what matters is the engine code and fuel type. A breaker sourcing a pump for a B47 diesel coupe will supply the same pump as one from a B47 diesel convertible, so don't worry about matching the body style. Focus on confirming your engine code, which you can find on your V5C or via a VIN check.

Trim level alone — Sport, M Sport, SE, or xLine — does not determine which fuel pump you need; the engine code and fuel type are what matter. Two 4 Series cars both wearing M Sport badges but fitted with different engines (say a B47 diesel versus a B58 petrol) will need completely different pumps, while two cars on different trims sharing the same engine code will use the same pump. The M440i is a specific engine variant with its own B58 unit, so if that is your car tell the breaker the M440i designation along with your engine code.

The facelift of the F-series 4 Series arrived in 2017 and brought updated engines alongside styling changes, so crossing that boundary is a genuine fitment question. If your engine code remained the same across that point — for instance some B47 diesel units — the pump may be interchangeable, but there can be mid-production ancillary and mounting changes that are not obvious from the outside. Route this question directly to the breaker with both registration numbers so they can verify part numbers before you agree to buy.

xDrive (BMW's four-wheel-drive system) is a drivetrain addition and does not affect the fuel pump, which is determined entirely by the engine fitted to the car. An xDrive 420d and a rear-wheel-drive 420d sharing the same engine code will use the same fuel pump. Just confirm your engine code with the breaker and mention xDrive so they can double-check there are no vehicle-specific ancillary differences on your particular build.