Cooling system, general information

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WARNING: When the engine is hot, the cooling system is under pressure. If it is necessary to open the cooling system, do so slowly in order to relieve pressure before starting repairs.

NOTE:

Hoses are secured with spring-type clamps. When carrying out repairs, use only spring -type clamps.
Use commercial clamp pliers, Hazet 798-5 or equivalent, to remove and install spring-type clamps.
When installing coolant hoses they should be stress-free, routed so that they do not come into contact with other components (observe markings on coolant connection and hose).

Draining and filling with coolant, see COOLING SYSTEM, DRAINING AND FILLING

Coolant mixture ratios, see COOLANT MIXTURE RATIOS

For leak tests of cooling system use VAG 1274 cooling system tester and VAG 1274/3 adapter.