MTU 12 V 2000 P12 Operating Instructions Manual page 63

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