Cooling System Components, Removing and Installing

Cooling system components, removing and installing

WARNING:
When doing any repair work, especially in the engine compartment, due to the cramped conditions, pay attention to the following:
^ Route all sorts of hoses/lines (e.g. for fuel, hydraulics, evaporative emissions system, coolant, refrigerant, brake fluid and vacuum pipes and hoses) and electrical wiring so that the original positions are restored.
^ Ensure sufficient clearance to all moving or hot components.

Note:
^ When the engine is warm the cooling system is under pressure. If necessary, release pressure before commencing repair work.
^ Hoses are secured with spring-type clips. In cases of repair only use spring-type clips.
^ VAG 1921 pliers are recommended when installing spring-type clips.
^ When installing coolant hoses route stress-free, so that they do not come into contact with other components (observe markings on coolant connection and hose).

Perform cooling system leakage test with cooling system tester VAG 1274 and adapters VAG 1274/8 and VAG 1274/9.
^ Parts of cooling system body side.
^ Parts of cooling system engine side.
^ Coolant hose connection diagram.
^ Draining and filling with coolant.
^ Coolant mixture ratios.