Audi A4 Fuel Injector

Replacement fuel injector — fitment, symptoms & live UK prices.

Fits Audi A4 — check your reg/VIN to confirm

Fuel Injector

£30–£150 each depending on petrol/diesel and pressure type.

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Will it fit my Audi A4?

Diesel common-rail injectors are usually coded to the specific vehicle/ECU and often need programming after fitting — not always a straight swap.

Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.

Signs your Audi A4 fuel injector needs replacing

Misfire on one cylinder
Rough idle, hard starting
Poor economy, smoke on diesel
Injector fault code

Fitting it yourself

Accessible on most engines but diesel injectors can seize in the head; petrol injectors are usually simpler. Diesel jobs often need specialist coding after fitting.

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Live prices£30–£150 each depending on petrol/diesel and pressure type.

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