Black exhaust gas
Component
Cause
Measure
Air supply
Air filter clogged
Check signal ring position of contami‐
nation indicator (→ Page 121).
Fuel injection equip‐
ment
Injector faulty
Replace (→ Page 102).
Injection pump defective
Replace (→ Page 98).
Engine
Overloaded
Contact Service.
Blue exhaust gas
Component
Cause
Measure
Engine oil
Engine oil level too high
Drain engine oil (→ Page 124).
Oil separator or oil-preseparator of
crankcase breather clogged
Replace (→ Page 93).
Exhaust turbocharger
Cylinder head
Piston rings
Cylinder liner
Faulty
Contact Service.
White exhaust gas
Component
Cause
Measure
Engine
Not at operating temperature
Run engine to reach operating temper‐
ature.
Fuel system
Water in fuel
Check fuel system at fuel prefilter
Drain fuel prefilter (→ Page 114).
Intercooler
Leaking
Contact Service.
MS150025/02E 2012-10 | Troubleshooting | 63
TIM-ID: 0000002536 - 002