8.15.5 Charge-air coolant pump – Relief bore check
DANGER
Components are moving or rotating.
Risk of crushing, danger of parts of the body being caught or pulled in!
• Operate the engine at low load only. Keep clear of the danger zone of the engine.
WARNING
Hot components/surfaces.
Risk of burns!
• Allow the engine to cool down to below 50 °C before beginning work.
• Wear suitable protective equipment/thermal gloves.
• Avoid unprotected contact with hot surfaces.
WARNING
Exhaust gases are harmful to health and may cause cancer.
Risk of poisoning and suffocation!
• Keep the engine room well-ventilated at all times.
• Repair leaking exhaust pipework immediately.
WARNING
A high level of noise is produced when the engine is running.
Risk of hearing loss!
• Wear suitable hearing protection.
Charge-air coolant pump – Re-
lief bore check
1.
Check relief bore (arrow) for oil and coolant
discharge.
Note:
Observe safety regulations when carrying out
maintenance and repair work (→ Page 13).
2.
Stop engine (→ Page 53) and disable engine
start.
3.
Clean the relief bore with a wire if it is dirty.
• Permissible coolant discharge: up to
10 drops per hour;
• Permissible oil discharge: up to 5 drops
per hour
4.
If discharge exceeds the specified limits:
Contact Service.
192 | Low-Temperature Circuit | MS15058/04E 2018-12
TIM-ID: 0000060200 - 004
Summary of Contents for 20V4000G44F
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