Problem Possible causes/consequences and M Solutions
Turbine or compressor wheel is scraping the housing; foreign
objects in the compressor or turbine; seized bearing in rotating
parts.
X
Have the exhaust gas turbocharger checked at a qualified spe-
cialist workshop.
Valve clearance is too big.
X
Check clearance; adjust (Y page 63).
BlueTec
®
exhaust gas aftertreatment indicator (on-highway version)
G
WARNING
If service work is carried out incorrectly, the operating safety of your vehicle/equipment may be
affected. You could lose control of the vehicle/equipment and cause an accident. The safety
systems may also no longer be able to protect you or others as they are designed to.
Always
have
service work carried out at a qualified specialist workshop. The qualified specialist
workshop must have the specialist skills and tools necessary to carry out the work. Mercedes-
Benz recommends that you use a Mercedes-Benz or MTU Service Centre for this purpose. In
particular, work relevant to safety or on safety-related systems must be carried out at a qualified
specialist workshop.
94
BlueTec
®
exhaust gas aftertreatment indicator (on-highway version)
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