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8.10 Charge-Air Cooling
8.10.1 Intercooler – Check water drain for coolant leakage and obstruction
DANGER
Moving or rotating parts.
Risk of crushing, danger of limbs being caught up or drawn in!
• Operate engine in lower load range only. Keep away from the danger zone of the engine.
WARNING
High level of engine noise when the engine is running.
Risk of damage to hearing!
• Wear ear protectors.
WARNING
Compressed air gun ejects a jet of pressurized air.
Risk of injury to eyes and damage to hearing, risk of rupturing internal organs!
• Never direct air jet at people.
• Always wear safety goggles/face mask and ear defenders.
Checking intercooler water
drain for coolant leakage and
obstruction
u
With the engine running, verify that air
emerges from the drain bores (arrowed) on
left and right engine sides. If no air emerges:
a) Clean drain bores (arrowed) and blow out
with compressed air.
b) More significant coolant leakage indi-
cates a leaking intercooler. Contact Serv-
ice.
Emergency measures prior to engine start for continued operation with leak-
ing intercooler
1.
Remove injectors (→ Page 149).
2.
Bar engine manually (→ Page 129).
3.
Bar engine with starting system to blow out combustion chambers (→ Page 129).
4.
Install injectors (→ Page 149).
170 | Charge-Air Cooling | MS150123/01E 2017-05
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