Audi A4 Service Parts

Aftermarket Service Parts for Audi A4

Our service parts range for the Audi A4 covers all major model years and engine variants currently in stock. To confirm the exact service part that fits your specific trim and engine, enter your registration in the box above.

When to replace

Service parts cover oil filters, air filters, fuel filters and cabin filters — replaced at every service or as recommended in the manufacturer's schedule. Skipping a filter change can cost more in engine wear than the part itself.

About the Audi A4

The A4 in B7, B8 and B9 generations is a UK premium saloon and Avant favourite. 1.8 and 2.0 TFSI petrols and 2.0 TDI diesels are most common, with 3.0 V6 TDI on quattro variants.

How fitment works

Specifications vary between trim levels and engine variants — confirm part dimensions against the existing component before fitting. Our reg-lookup checks our fitment database (built from ktype-mapped OE references) and shows only parts verified to fit your exact vehicle.

Stock and delivery

All parts are stocked in the UK and dispatched the same business day where available. Returns are handled under our standard returns policy — see the policy pages linked in the footer.