Smart ForFour 2004 1.3 petrol service and maintenance

Engine oil

Engine oil capacity: 4 litres (4.2 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 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

Smart ForFour 1.3 petrol fuel filter change interval is 60,000 km

Spark plugs

Replacement interval for spark plugs is 60,000 km.

Timing chain

There is no manufacturer specified replacement interval for the engine timing chain on Smart ForFour 2004 1.3 petrol, expecting it to last until the engine is overhauled (approximately 180,000 km - 300,000 km).
Based on real life experience, the Smart Forfour 2004 1.3 Automatic timing chain change interval is approximately 150,000 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.

Engine coolant

Engine coolant (antifreeze) recommended replacement interval for Smart ForFour 1.3 petrol is 90,000 km.

Valve clearance adjustment

The valve clearance (tappet) adjustment interval for Smart Forfour 2004 1.3 Automatic is 50,000 km.