Used Audi A4 headlight: how to buy the right one
Used Audi A4 headlight: how to buy the right one
To buy the right used Audi A4 headlight, match three things: your generation, your bulb technology (halogen, xenon, LED or Matrix), and the part number. Headlights are one of the higher-value used parts, so getting these right matters, but a genuine used unit saves you a great deal against a new Audi headlamp, which can run well into four figures.
Which A4 do you have?
The headlight changed across the generations and they do not interchange. The B7 ran from 2004 to 2008, the B8 from 2008 to 2015 with a facelift around 2011, the B9 from 2015 to 2023, and the B10 from 2023. The facelifts changed the light too, so confirm both the generation and roughly the year. Your registration pins it down exactly.
Halogen, xenon, LED or Matrix: which do you need?
This is the step people miss, and it is the most important. The A4 was sold with halogen, xenon (HID), full LED and Matrix LED headlights, and they are not interchangeable, because the wiring, the control modules and the levelling differ. Look at your existing light and check what your car has. Buy the type that matches, or you will have a light that does not work or throws warnings.
How do I confirm the exact unit?
Match the Audi part number printed on the headlight body to the listing. This is the single most reliable check, because it captures the differences between facelifts, bulb types and left versus right-hand drive that the name alone misses. Tell us your registration or your old part number and we will confirm the correct unit.
What should I inspect on a used headlight?
Check the listing photos for cracks in the lens, heavy internal condensation, and yellowing or fogging. Light surface marks polish out, but a cracked lens or a unit full of moisture is one to avoid. Check the mounting tabs are intact, because broken tabs make a light hard to align. A good seller shows the lens clearly and states whether the unit was tested working.
Buy with confidence
Browse our Audi parts for current A4 stock, or our lighting collection for other models. Every unit is inspected, ships with free tracked UK delivery, and is covered by our 30 day returns policy. Send your registration or old part number and we will match the right headlight before you buy. Parts worth your trust.