Audi A6 C6 Parts & Spares

Fitment guides, buying advice and live UK eBay prices for the Audi A6 C6 — always confirm against your reg or VIN.

The Audi A6 C6 is a familiar sight on UK roads, which is good news when something needs replacing: parts are plentiful and prices stay competitive. Owners search most often for headlight, wheel bearing and exhaust — but the model spans different engines, trims and, on most generations, a mid-life facelift, so the same-looking part isn't always the right one.

Use the guides below to match a part to your exact Audi, then check live prices from trusted UK eBay sellers. Every part page lists what to confirm before you buy, so you avoid the classic wrong-part return.

Most-searched Audi A6 C6 parts

HeadlightView prices ›

Check halogen vs xenon AND left/right (driver/passenger). Pre-facelift and facelift lenses differ — match your reg.

Wheel BearingView prices ›

Front and rear differ; some have integrated ABS sensors in the hub — match the right type.

ExhaustView prices ›

Systems are usually sold in sections (front pipe, centre, back box) — confirm which section(s) you need and whether your car has a single or twin exit.

TurboView prices ›

Turbo part numbers are engine-code specific. Confirm the exact code stamped on your old unit where possible.

EGR ValveView prices ›

Diesel mainly. Match the engine code — EGR units and coolers differ across TDI generations.

Starter MotorView prices ›

Match power rating and tooth count; stop/start cars use uprated starters.

How to check a part fits your Audi A6 C6

The same Audi can be sold with several engines and trims, and most generations get a mid-life facelift that changes lights, bumpers and trim. Before you buy:

Enter your registration to filter out the obvious mismatches.
Match your engine code for anything attached to the engine.
Check your trim — sportier versions often use bigger brakes and specific parts.
Confirm pre-facelift vs facelift if your car sits near the changeover year.
Best of all, match the part number on the unit you’re replacing.

Full walkthrough: how to check a part fits your exact car.

Buying Audi A6 C6 parts: genuine, aftermarket or used

Genuine and OEM parts are the safe pick for safety-critical or hard-to-reach components and cars you’re keeping long term. For routine wear items, a reputable aftermarket brand is usually as good for far less. And for pricey assemblies on an older Audi A6 C6 — alternators, starters, lights, panels — a well-rated used or reconditioned part can be the sensible choice. See OEM vs aftermarket vs used for the full rundown.

All Audi A6 C6 parts

HeadlightAudi A6 C6 Wheel BearingAudi A6 C6 ExhaustAudi A6 C6 TurboAudi A6 C6 EGR ValveAudi A6 C6 Starter MotorAudi A6 C6 Brake DiscsAudi A6 C6 ThermostatAudi A6 C6 IntercoolerAudi A6 C6 Intake ManifoldAudi A6 C6 Window RegulatorAudi A6 C6 Water PumpAudi A6 C6 Timing BeltAudi A6 C6 Timing ChainAudi A6 C6 Clutch KitAudi A6 C6 Dual Mass FlywheelAudi A6 C6 DPF FilterAudi A6 C6 AlternatorAudi A6 C6 Shock AbsorberAudi A6 C6 Suspension ArmAudi A6 C6 Control ArmAudi A6 C6 WishboneAudi A6 C6 Brake PadsAudi A6 C6 Brake CaliperAudi A6 C6 ABS SensorAudi A6 C6 Fuel InjectorAudi A6 C6 Fuel PumpAudi A6 C6 RadiatorAudi A6 C6 Coil PackAudi A6 C6 Glow PlugsAudi A6 C6 Spark PlugsAudi A6 C6 Catalytic ConverterAudi A6 C6 GearboxAudi A6 C6 Drive ShaftAudi A6 C6 CV JointAudi A6 C6 Tail LightAudi A6 C6 Wing MirrorAudi A6 C6 Wiper MotorAudi A6 C6 Heater BlowerAudi A6 C6 Throttle BodyAudi A6 C6 Mass Air Flow SensorAudi A6 C6 Oxygen SensorAudi A6 C6 Crankshaft SensorAudi A6 C6 Oil PumpAudi A6 C6 Power Steering PumpAudi A6 C6 Engine MountAudi A6 C6

Audi A6 C6 parts — common questions

How do I know a part fits my Audi A6 C6?

Start with your registration to filter obvious mismatches, then confirm the details that matter: your engine code (for anything attached to the engine), your trim level, and whether your car is pre-facelift or facelift. The surest check is to match the part number stamped on the unit you're replacing.

Where's the best place to buy Audi A6 C6 parts?

For most owners, eBay's UK sellers offer the widest choice and the keenest prices, covering genuine, aftermarket and used parts. Buy through eBay's checkout so you're covered by the Money Back Guarantee, and favour sellers with strong feedback and a clear returns policy.

Should I buy genuine Audi parts or aftermarket?

It depends on the part. Genuine or OEM makes sense for safety-critical or hard-to-reach components and cars you're keeping long term. For routine wear items — brakes, filters, suspension arms — a reputable aftermarket brand is usually as good for far less.

Are used Audi A6 C6 parts safe to buy?

They can be a smart choice for expensive assemblies like alternators, starters, lights and body panels, especially on an older Audi A6 C6. Check the seller's feedback, confirm the part number matches, and prefer sellers who state condition and offer a returns window.