Component Cause Action
Fuel injection equip‐
ment
Injector faulty Replace (→ Page 91).
Engine cabling Faulty Check (→ Page 140).
Engine Overloaded Contact Service.
Engine speed not steady
Component Cause Action
Fuel injection equip‐
ment
Injector faulty Replace (→ Page 91).
Speed sensor Faulty Contact Service.
Fuel system Air in fuel system Vent fuel system (→ Page 97).
DDEC Faulty Contact Service.
Charge air temperature too high
Component Cause Action
Engine coolant Engine coolant treatment incorrect Check (MTU test kit).
Intercooler Contaminated Contact Service.
Engine room Air-intake temperature too high Check fans and intake/exhaust lines.
Charge-air pressure too low
Component Cause Action
Air supply Air filter clogged Check signal ring position of service in‐
dicator (→ Page 102).
Intercooler Contaminated Contact Service.
Exhaust turbocharger Faulty Contact Service.
Coolant leaks at intercooler
Component Cause Action
Intercooler Leaking, major coolant discharge Contact Service.
Black exhaust gas
Component Cause Action
Air supply Air filter clogged Check signal ring position of service in‐
dicator (→ Page 102).
Fuel injection equip‐
ment
Injector faulty Replace (→ Page 91).
Engine Overloaded Contact Service.
50 | Troubleshooting | MS150049/02E 2012-11
TIM-ID: 0000002542 - 003
To Next Page
Loading...
