7.9 Charge-Air Cooling
7.9.1 Intercooler – Checking condensate drain line for coolant discharge and
obstruction
DANGER
Unguarded rotating and moving engine components.
Risk of serious injury – danger to life!
• Take special care when working on a running engine.
WARNING
Engine noise above 85 dB (A).
Risk of damage to hearing!
• Wear ear protectors.
WARNING
Compressed air
Risk of injury!
• Do not direct compressed-air jet at persons.
• Wear protective goggles / safety mask and ear protectors.
Checking condensate drain line of
intercooler for coolant discharge
and obstruction
1. Check drain line for water discharge and
obstruction when the engine is running idle.
2. If no air emerges, remove condensate drain
line and blow out with compressed air.
3. Replace obstructed drain line by new one.
4. Install condensate drain line.
5. If a large amount of coolant is continuously
discharged, the intercooler is leaking. Con‐
tact Service.
Emergency measures prior to engine start with a leaking intercooler
1. Remove injectors (→ Page 85).
2. Bar engine manually (→ Page 72).
3. Bar engine with starting system to blow out combustion chambers (→ Page 73).
4. Install injectors (→ Page 86).
M015650/03E 2011-10 | Task Description | 97
TIM-ID: 0000027574 - 002
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