BMW 3 series 2003 2.0 diesel service and maintenance

Engine oil

Engine oil capacity: 5.2 litres (5.5 quarts)
Oil change interval is 10,000 km or one year, whichever comes first.
Recommended oil type (Oil Viscosity Classification SAE) is 5W-30

Air filter

Air filter change interval is 10,000 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

BMW 3 series 2.0 diesel fuel filter change interval is 20,000 km

Serpentine (drive) belt

BMW 320Cd Cabrio serpentine or alternator belt replacement interval is 60,000 km.