Audi A3 2008 2.0 diesel service and maintenance

Engine oil

Engine oil capacity: 4.7 litres (5 quarts)
For regular oil change Audi A3 2008 2.0 diesel takes approx. 4 litres of oil, 4.7 litres is total engine oil capacity.
Oil change interval is 15,000 km or one year, whichever comes first.
Recommended oil type (Oil Viscosity Classification SAE) is 5W-30, 5W-40

Air filter

Air filter change interval is 30,000 km.
After prolonged driving in particularly dusty conditions, it is advisable to check the condition of the air filter earlier and replace it if the filter is visibly dirty.

Fuel filter

Audi A3 2.0 diesel fuel filter change interval is 30,000 km

Glow plugs

Replacement interval for glow plugs is 150,000 km.

Timing belt

Manufacturers recommended timing belt replacement interval for Audi A3 2.0 diesel is 120,000 km.
The experience of Audi A3 owners confirms that timing belt does in fact last for the specified mileage sometimes lasting 150,000 km or more, but it is recommended to carefully monitor the condition of the timing belt once the manufacturer's mileage has been reached.
Running your car in aggressive environments (e.g. salt, sand, etc.) causes timing belt to degrade faster and reduces its lifespan; under such conditions, the belt may need to be replaced sooner.

Serpentine (drive) belt

Audi A3 2008 2.0 TDI serpentine or alternator belt replacement interval is 150,000 km.

Engine coolant

Engine coolant (antifreeze) recommended replacement interval for Audi A3 2.0 diesel is 150,000 km or 7 years, whichever comes first.