Audi A8 Maintenance Plans

The Audi A8 maintenance plan varies across the 1994-2025 model ranges and its wide spread of engines, so use the selector to match your exact generation and engine for the correct service schedule.

Select your Audi model below to view the online service schedule for your specific engine.

4 models covered

Model Year Range Engines covered Fuel
A8 1994-2003 1994-2003 2.8 V6 30V Petrol (AMX), 3.3 V8 TDI Diesel (AKF), 3.7 V8 40V Petrol (AKC), 4.2 V8 40V Petrol (AUW), 4.2 V8 40V Petrol (AVN), 6.0 W12 Petrol (AZC), S8 (4.2 V8 40V) Petrol (AVP) Diesel, Petrol
A8 2003-2010 2003-2010 2.8 FSi Petrol (BDX), 3.0 V6 Petrol (ASN), 3.0 V6 TDI Diesel (ASB), 3.0 V6 TDI Diesel (BNG), 3.2 FSI Petrol (BPK), 3.7 V8 Petrol (BFL), 4.0 V8 TDI Diesel (ASE), 4.2 V8 Petrol (BFM), 4.2 V8 Petrol (BVJ), 4.2 V8 TDI Diesel (BVN), 6.0 W12 Petrol (BHT), S8 (5.2 V10 FSi) Petrol (BSM) Diesel, Petrol
A8 2010-2018 2010-2018 2.0 TFSI Hybrid Electricity,Petrol (CHJA+EAFA), 2.0 TFSI Petrol (CYPA), 3.0 TDI Diesel (CDTA), 3.0 TDI Diesel (CDTB), 3.0 TDI Diesel (CLAB), 3.0 TDI Diesel (CMHA), 3.0 TDI Diesel (CTBA), 3.0 TDI Diesel (CTBB), 3.0 TDI Diesel (CTBD), 3.0 TFSI Petrol (CGWA), 3.0 TFSI Petrol (CREA)… Diesel, Electricity, Petrol
A8 2018-2025 2018-2025 50 TDI Diesel (DDVC), 50 TDI MHEV Diesel (DMGK), 55 TFSI Petrol (CZSE), 60 FSi Petrol (CXYA), 60 TDI Diesel (CVXB), 60 TFSI e Electricity,Petrol (CZSE), S8 (4.0 V8 TFSI) MHEV Petrol (CWWB) Diesel, Electricity, Petrol

Servicing by engine type

Audi A8 petrol service schedule notes

Audi A8 petrol engines span units such as TFSI and FSI, including higher-output S8 variants, so the correct oil grade and oil-change interval matter for both performance and long-term wear. Many petrol A8s run direct injection, which means ignition components and air intake condition can have a noticeable effect on idle quality and fuel economy. Plan to keep on top of spark plugs at the specified interval, and address any misfire symptoms promptly to protect the catalytic converter. Cooling system health is also important on these engines, so keep an eye on coolant level, hose condition and any signs of overheating.

Audi A8 diesel service schedule notes

Audi A8 diesel models commonly use TDI engines, and routine servicing tends to focus on clean oil, correct filtration and keeping the intake and emissions systems in good order. If your A8 has a DPF and EGR system, predominantly short trips can increase the chance of DPF loading, so it is worth watching for warning lights and any change in regeneration behaviour. Diesel fuel system components work at very high pressure, so sticking to the correct fuel filter and service intervals helps protect injectors and the high-pressure pump. Turbocharged diesels also benefit from careful attention to boost hoses and intercooler connections, especially if you notice loss of power or excess smoke.

Audi A8 hybrid (petrol-electric) service schedule notes

Audi A8 hybrid and MHEV variants combine a petrol engine (often TFSI) with electrical assistance, so the service plan covers both conventional engine items and hybrid-specific checks. Even if the car can run with the engine off at times, the petrol engine still needs regular oil changes, and many models list 15000 km or 12 months as a typical interval depending on the exact engine and year. Pay attention to cooling requirements, because some hybrids use multiple cooling circuits for the engine and electrical components and low coolant can trigger faults. Any work around orange high-voltage cabling should be left to trained technicians, but you can still follow the schedule for 12V battery condition, brakes, tyres and fluids.

Common service operations for Audi

The operations shown below are typical for an Audi A8 service, but the exact items and cadence can change by model year, engine family and whether the car is diesel, petrol or a hybrid.

Operation Typical interval Notes
Oil and filter changeSee selector aboveVaries by engine and recommended oil grade
Air filter30,000 to 60,000 kmMore often in urban or dusty driving
Cabin filter15,000 to 30,000 km or 1 yearAffects air conditioning and air quality
Brake fluid2 years (all models)Regardless of mileage
CoolantPer manufacturer (typically 5 years or 100,000 km)Check level and condition (colour, deposits) at every service
Front brake padsDepending on use (typically 30,000 to 60,000 km)Wear depends on driving style and load carried
Timing beltSee selector aboveInterval varies widely by engine
Spark plugs (petrol)30,000 to 60,000 kmPetrol engines only

Audi electronic diagnostics

If the engine management light comes on, start with an OBD2 scan and note the stored DTCs, then use the codes to guide checks rather than swapping parts. Codes are often grouped as powertrain (engine and gearbox), body, chassis and network/communication, which helps narrow down whether the issue is sensor, wiring, air/fuel or emissions-related. For Audi A8-specific code guidance, see fault codes and OBD help, then confirm the fix with a road test and a rescan.

What the Audi manual covers

Once you have matched your Audi A8 to the right service schedule, a Haynes repair manual helps you carry out the work correctly with step-by-step procedures, tightening torques and clear diagrams. This is especially useful on the A8 because access can vary significantly between generations and across TDI, TFSI/FSI and hybrid layouts. Use the manual to confirm fluid specifications, service point locations and safe jacking points before you start. If your plan includes brakes, belts, cooling system or intake work, the model-specific procedures can help you avoid common refitting and bleeding mistakes.

Audi manual