4-2
OM 803 us – Edition 3.7 * * 803b410.fm
Malfunctions
Insufficient engine output
Oil level too high
Fuel grade does not comply with specifications
Dirty air filter
Wrong valve clearance
Injection line leaks
Malfunctioning injection nozzle
Engine does not run on all cylinders
Malfunctioning fuel injection pump
Injection line leaks
Malfunctioning injection nozzle
Insufficient or no engine oil pressure
Oil level too low
Machine inclination too high (max. 15°)
Wrong SAE grade of engine lubrication oil
Engine oil consumption too high
Oil level too high
Worn oil scraper rings
Machine inclination too high (max. 15°)
Wrong SAE grade
Engine smoke
Blue
Oil level too high
Machine inclination too high (max. 15°)
Wrong oil
White
Engine starting temperature too low
Fuel grade does not comply with specifications
Wrong valve clearance
Malfunctioning injection nozzle
Malfunctioning cylinder-head gasket
Black
Dirty air filter
Wrong valve clearance
Malfunctioning injection nozzle
Problem
Possible causes
See