9.9 Charge-Air Cooling
9.9.1 Charge-air cooler – Leak check
Preconditions
☑
Engine is stopped and starting disabled.
WARNING
Condensation contains acid.
Risk of chemical burns!
• Wear protective goggles.
• Wear protective gloves.
Checking charge-air cooler for
leaks
1.
With the engine cooled down and stationary,
unscrew screws (2) with washers (3) and take
off holder (4).
2.
Remove plug screws (1) in plug-in pipes be-
fore the charge-air elbows on both sides.
3.
If necessary, use a suitable tool to remove
obstructions and check the openings for
coolant discharge.
Result:
If a large amount of coolant is discharged,
contact Service.
4.
Insert plug screw (1) and use torque wrench to tighten to specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Screw
M10
Tightening torque
15 Nm +3 Nm
5.
Install holder (4) with screws (3) and washers (2).
Emergency measures prior to engine start with a leaking charge-air cooler
1.
2.
Bar engine manually (→ Page 189).
3.
Bar engine with starting system to blow out combustion chambers (→ Page 191).
Note:
Install injectors in their original fitting position.
4.
Install injector (→ Page 213).
246 | Charge-Air Cooling | MS15065/01E 2019-01
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