Audi A6 Maintenance Plans

The Audi A6 spans multiple generations from 1997-2005 through 2019-2025, with a wide mix of Diesel, Petrol, 48V (MHEV) and Electricity powertrains. Use the selector on this page to choose your A6 year and engine so the maintenance plan matches your exact car.

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

4 models covered

Model	Year Range	Engines covered	Fuel
A6 1997-2005	1997-2005	1.8 20V Turbo Petrol (AWT), 1.9 TDI Diesel (AFN), 1.9 TDI Diesel (AJM), 1.9 TDI Diesel (AVF), 1.9 TDI Diesel (AVG), 1.9 TDI Diesel (AWX), 2.0 20V Petrol (ALT), 2.4 V6 30V Petrol (AMM), 2.4 V6 30V Petrol (ASM), 2.4 V6 30V Petrol (BDV), 2.5 V6 TDI Diesel (AFB), 2.5 V6 TDI Diesel (…	Diesel, Petrol
A6 2005-2011	2005-2011	2.0 TDI 16V (DPF) Diesel (BRE), 2.0 TDI 16V (DPF) Diesel (BRF), 2.0 TDI 16V (DPF) Diesel (BVG), 2.0 TDI 16V Diesel (BLB), 2.0 TDI 16V Diesel (BNA), 2.0 TDI Diesel (CAGB), 2.0 TDI Diesel (CAHA), 2.0 TDI Diesel (CAHB), 2.0 TFSI 16V Petrol (BPJ), 2.4 V6 Petrol (BDW), 2.7 V6 TDI Die…	Diesel, Petrol
A6 2011-2018	2011-2018	1.8 TFSI Petrol (CYGA), 2.0 TDI Diesel (CGLC), 2.0 TDI Diesel (CGLD), 2.0 TDI Diesel (CGLE), 2.0 TDI Diesel (CNHA), 2.0 TDI Diesel (CSUD), 2.0 TDI Diesel (CSUE), 2.0 TDI Diesel (DDCA), 2.0 TDI Diesel (DDCB), 2.0 TDI Diesel (DDDA), 2.0 TFSI Hybrid Electricity,Petrol (CHJA+EAFA), …	Diesel, Electricity, Petrol
A6 2019-2025	2019-2025	35 TDI 48V (MHEV),Diesel (DEZD), 35 TDI 48V (MHEV),Diesel (DEZF), 35 TDI 48V (MHEV),Diesel (DTPB), 40 TDI 48V (MHEV),Diesel (DFBA), 40 TDI 48V (MHEV),Diesel (DTPA), 40 TFSI 48V (MHEV),Petrol (DMTC), 45 TDI 48V (MHEV),Diesel (DDVE), 45 TDI 48V (MHEV),Diesel (DDVF), 45 TDI 48V (MH…	48V (MHEV), Diesel, Electricity, Petrol

Servicing by engine type

Audi A6 Petrol servicing

Audi A6 Petrol engines (including TFSI and the higher-output S and RS variants) rely on regular oil and filter changes to protect turbocharged and high-heat components, with some schedules showing 15,000 km or 12 months for an oil service. Keep ignition components in mind on Petrol models: spark plugs and related checks are typically mileage-based and can affect smooth running and fuel economy if left too long. Cooling system condition is also important on these engines, as correct coolant strength and leak-free pipework help prevent overheating under load. Because the A6 range is broad, always confirm the exact service items and intervals for your specific TFSI/RS engine in the selector.

Audi A6 Diesel servicing

Audi A6 Diesel engines such as 2.0 TDI and 3.0 TDI benefit from consistent oil servicing, and some schedules list 15,000 km or 12 months for oil and filter changes. Diesel maintenance often centres on air intake and emissions hardware: a restricted air filter, EGR issues, or DPF loading can all affect performance and economy, especially on short-trip use. Fuel system care matters too, so replacing the fuel filter at the correct interval for your engine helps protect high-pressure components. Select your exact TDI engine to see which Diesel-specific checks are called out for your generation.

Audi A6 48V (MHEV) servicing

Audi A6 48V (MHEV) models combine a conventional Petrol or Diesel engine with a 48V system that supports start-stop and energy recuperation, so servicing needs to cover both mechanical and electrical health. Routine items such as oil, filters and cooling-system checks remain fundamental, and some versions still show 15,000 km or 12 months for oil servicing. Because the vehicle is designed to manage charging and electrical loads, battery condition and charging performance checks become more important when investigating stop-start faults or warning lights. Use the selector to ensure the plan matches whether your MHEV A6 is paired with TFSI or TDI power.

Audi A6 Electricity (plug-in hybrid) servicing

Audi A6 Electricity models in this range are plug-in hybrids (TFSI e), combining an electric drive system with a Petrol engine, so maintenance is a blend of EV checks and conventional servicing. The combustion engine side still needs routine items such as oil and filters, and some schedules indicate 15,000 km or 12 months for an oil service. Hybrid drivetrains place extra emphasis on cooling-system health and keeping software-controlled systems free of faults, particularly if the car is used in frequent short trips. Select your exact TFSI e engine pairing in the selector to see which operations apply to the hybrid components versus the Petrol engine.

Common service operations for Audi

The operations listed below reflect typical Audi A6 servicing items, but the exact schedule can vary by generation, engine and service regime. After selecting your vehicle details, check the distances and time limits shown for each operation.

Operation	Typical interval	Notes
Oil and filter change	See selector above	Varies by engine and recommended oil grade
Air filter	30,000 to 60,000 km	More often in urban or dusty driving
Cabin filter	15,000 to 30,000 km or 1 year	Affects air conditioning and air quality
Brake fluid	2 years (all models)	Regardless of mileage
Coolant	Per manufacturer (typically 5 years or 100,000 km)	Check level and condition (colour, deposits) at every service
Front brake pads	Depending on use (typically 30,000 to 60,000 km)	Wear depends on driving style and load carried
Timing belt	See selector above	Interval varies widely by engine
Spark plugs (petrol)	30,000 to 60,000 km	Petrol engines only

Audi electronic diagnostics

If your Audi A6 has an engine management light, start by reading the OBD2 fault codes and saving the freeze-frame data, then address the cause before clearing anything. Codes are commonly grouped as P (powertrain), B (body), C (chassis) and U (network), and the same symptom can set different DTCs depending on engine and generation. For code meanings and next checks, see Audi A6 OBD fault codes, then return here to confirm any servicing items linked to the repair.