Exhaust gas blue
Component Cause Action
Engine oil Too much engine oil in the engine Drain engine oil (→ Page 167).
Oil separator of crankcase breather con-
taminated
Replace (→ Page 115).
Exhaust turbocharger,
cylinder head, piston
rings, cylinder liner
Faulty Contact Service.
White exhaust gas
Component Cause Action
Engine Not at operating temperature Run engine to reach operating tempera-
ture.
Fuel system Water in fuel Check fuel system on fuel prefilter;
Drain water from fuel prefilter (not
switchable) (→ Page 143).
Drain fuel prefilter (switchable)
(→ Page 145).
Intercooler Leaking Contact Service.
MS15054/03E 2018-07 | Troubleshooting | 79
TIM-ID: 0000051898 - 004
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