8.15.5 Coolant pump – Relief bore check
DANGER
Rotating and moving engine parts.
Risk of crushing, danger of parts of the body being caught or pulled in!
• Only run the engine at low power. Keep away from the engine's danger zone.
WARNING
High level of engine noise when the engine is running.
Risk of damage to hearing!
• Wear ear protectors.
Coolant pump – Relief bore
check
1. Check relief bore for oil and coolant dis-
charge.
2. Permissible discharge:
• Up to 10 drops of coolant per hour
• Up to 5 drops of oil per hour
3. If discharge exceeds the specified limits, con-
tact Service.
4. If relief bore is dirty:
a) Stop engine (→ Page 38) and disable en-
gine start.
b) Clean relief bore with a wire.
c) Start engine (→ Page 35) and operate it
at idle speed for some minutes.
d) Check relief bore again for oil and cool-
ant discharge.
124 | Coolant Circuit, General, High-Temperature Circuit | MS15018/03E 2016-02
TIM-ID: 0000000038 - 002
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