Ford B-Max Fuel Pump: Specs, Fitment & Common Faults

A simple priming-hum test and fuse check can rule out a much cheaper cause before you pay for a new fuel pump.

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OEM Part Number: confirm via VIN by engine and fuel type

Accuracy note: Covers the Ford B-Max (2012-2017) as listed in the UK aftermarket catalogues. In-tank fuel pumps are sold two ways: as a complete feed unit (the pump in its swirl pot with the fuel-level sender and float) or as a bare pump that is fitted into the old housing, and petrol and diesel versions are not interchangeable — most diesels have only a low-pressure lift pump in the tank, with the high-pressure pump on the engine. The references below are UK aftermarket catalogue listings for this generation, labelled by brand; genuine numbers are shown only where a listing quotes one. Check fuel type, the plug pin count and whether your car has one sender or two (saddle tanks on 4x4 and some larger cars) against your VIN before ordering.

Fuel pumps / feed units (aftermarket)	No generation-specific listing — confirm via VIN
Types & variants	Confirm petrol or diesel, and complete module or bare pump, against the old unit
Genuine (OE) numbers quoted	None quoted in catalogue listings — order a genuine unit against your VIN
Fitment notes	Confirm by the Ford number on the old module against the Fiesta Mk7 listings; petrol modules carry the sender while the diesels use a separate lift pump.

Before Replacing the Pump, Try This Simple Test

Before assuming the Ford B-Max's fuel pump itself has failed, it's worth trying a simple, genuinely useful check: with the ignition turned to "on" but the engine not yet started, you should hear a faint 2-3 second hum from the rear of the car as the pump primes the fuel system. If you hear nothing at all, check the fuel pump fuse first — commonly fuse F56 in the passenger cabin fuse box on many Ford models, though always confirm your specific car's fuse layout — before assuming the pump itself needs replacing. A blown fuse is a considerably cheaper fix, and it's a genuinely common cause that gets overlooked in favour of jumping straight to pump replacement.

General wear symptoms worth knowing: engine sputtering or hesitation under acceleration, a longer-than-usual crank before starting, a noticeable whining or buzzing noise from the rear of the car near the fuel tank, and stalling at low speeds or idle are the classic signs of a genuinely failing pump rather than a blown fuse or other simpler fault.

Ford B-Max Fuel Pump: A Part That Fails at the Worst Possible Moments

Rather than failing conveniently while parked, this component on the Ford B-Max tends to give up mid-journey, which is about the worst possible moment. Learning to recognise the early symptoms is the best defence against being caught out.

Before you buy: fuel pump specifications vary by engine size and fuel type, and petrol/diesel versions are never interchangeable. Always confirm against your VIN before ordering.

Ford B-Max Fuel Pump: Watch: Replacing It

🎬 Watch: Fuel tank petrol lift pump - how to replace - 2009 2017 ford fiesta 1.25 (sister (fiesta mk7))

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B-Max is Fiesta Mk7 based, same under-seat lift pump

Ford B-Max Fuel Pump: What It Does

The Ford B-Max's fuel pump function — pulling fuel from the tank and pressurising it for the engine — is straightforward, but its usual location isn't: it sits submerged inside the tank itself, which is precisely why access for replacement is more work than the part's size suggests.

Ford B-Max Fuel Pump: Generations & Engines: Fuel Pump Type

Accuracy note: these are documented patterns by generation and engine family, not a substitute for confirming your exact engine code — always verify against your V5C before ordering, since petrol and diesel pumps are never interchangeable.

2012–2017, 1.0 EcoBoost petrol	Petrol (direct injection): in-tank low-pressure pump plus a separate engine-mounted high-pressure pump
2012–2017, 1.6 TDCi diesel	Diesel: in-tank lift pump feeds a separate engine-mounted high-pressure injection pump (common rail) — never interchangeable with the petrol pump

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Ford B-Max Fuel Pump: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Fuel Pump Guide for symptoms to watch for (including the low-pressure vs high-pressure distinction on direct-injection engines), confirming fitment against your VIN, and OE suppliers worth knowing.

More Ford Fuel Pump

The same part, covered across other Ford models.