7.15.5 Engine coolant pump – Checking pressure relief port
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.
Engine coolant pump – Checking
pressure relief port
1. Check pressure relief port for oil and cool-
ant discharge.
2. Shut down engine (→ Page 52) and secure
against being restarted, observe general
“Maintenance and Repair” safety instruc-
tions.
3. Clean the pressure relief port 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.
M015695/03E 2013-03 | Task Description | 129
TIM-ID: 0000006798 - 005
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