17 00 039 Venting cooling system and checking for watertightness (N74): Notes
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WARNING:
Risk of scalding!
Open sealing cap only after engine has cooled down.
Open sealing cap only after engine has cooled down.
IMPORTANT:
You must protect the alternator against contamination before carrying out any repair work on the cooling circuit.
Cover alternator with suitable materials.
Failure to comply with this procedure may result in an alternator malfunction.
Cover alternator with suitable materials.
Failure to comply with this procedure may result in an alternator malfunction.
IMPORTANT:
Electric coolant pump!
FOLLOW NOTES FOR CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
FOLLOW NOTES FOR CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
IMPORTANT:
Lifetime coolant filling:
Never reuse used coolant!
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled.
In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant.
Never reuse used coolant!
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled.
In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant.
Only when refilling!
Use only recommended COOLANT .
Observe mixture ratio: 50% antifreeze and 50% water. In severely cold areas, the antifreeze can be increased to 60% which provides freezing protection down to-62°F (-52°C). Do not exceed a 60% ratio of antifreeze.
Perform filling operation slowly.
IMPORTANT:
The following bleeding procedure is necessary when a part is replaced in the cooling system or when the cooling system is refilled.