Blue exhaust gas
Component
Cause
Action
Engine oil
Too much oil in engine.
Drain engine oil (→ Page 103).
Oil separator of crankcase breather
contaminated
Exhaust turbocharg‐
er, cylinder head, pis‐
ton rings, cylinder lin‐
er
Faulty
Contact Service.
White exhaust gas
Component
Cause
Action
Engine
Not at operating temperature.
Run up to operating temperature.
Fuel system
Water in fuel.
Check fuel system on fuel prefilter;
Drain fuel prefilter
Intercooler
Leaking
Contact Service.
42 | Troubleshooting | MS150054/02E 2012-02
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