MTU 12 V 4000 C10 Operating Instructions Manual page 51

Blue exhaust gas
Component Cause
Engine oil Too much oil in engine
Filter element in oil separator is clog‐
ged
Exhaust turbocharg‐ Faulty
er, cylinder head, pis‐
ton rings, cylinder lin‐
er
White exhaust gas
Component Cause
Engine Not at operating temperature
Fuel system Water in fuel
Intercooler Leaking
Action
Drain engine oil (→ Page 104).
Replace (→ Page 78).
Contact Service.
Action
Run engine to reach operating temper‐
ature.
Drain fuel prefilter
Check fuel system.
Contact Service.
MS150049/02E 2012-11 | Troubleshooting | 51