BMW 3 series 2001 2.9 diesel service and maintenance

Engine oil

Engine oil capacity: 6.8 litres (7.2 quarts)
Oil change interval is 15,000 km or one year, whichever comes first.
Recommended oil type (Oil Viscosity Classification SAE) is 5W-40

Air filter

Replacement interval for the air filter 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

BMW 3 series 2.9 diesel fuel filter replacement interval: 45,000 km

Timing chain

There is no manufacturer specified replacement interval for the engine timing chain on BMW 3 series 2001 2.9 diesel, expecting it to last until the engine is overhauled (approximately 360,000 km - 600,000 km).
Based on real life experience, the BMW 330d 2001 timing chain change interval is approximately 200,000 km as at this mileage it may become overstretched and require replacement, so it is recommended to check the condition of the chain periodically after this mileage is reached and replace the timing chain if it becomes excessively stretched or if unusual engine noises occur.

Serpentine (drive) belt

BMW 330d serpentine or alternator belt replacement interval is 120,000 km, but in reality it may have a shorter service life and it is advisable to pay close attention to the condition of the belt or to replace it after an interval of 60,000 km.

Engine coolant

Engine coolant (antifreeze) recommended replacement interval for BMW 3 series 2.9 diesel is 60,000 km or 4 years, whichever comes first.

Valve stem oil seals replacement

Valve stem oil seals replacement for BMW 3 series 2.9 diesel is recommended every 160,000 km.