WARNING | When doing any repair work, especially in the engine compartment, pay attention to the following due to the cramped conditions: |
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| Route all the various lines (e.g. for fuel, hydraulics, activated charcoal filter system, coolant and refrigerant, brake fluid and vacuum) and electrical wiring in their original positions. |
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| Ensure that there is sufficient clearance to all moving or hot components. |
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| When the engine is warm, the cooling system is under pressure. If necessary, release pressure before beginning repair work. |
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| Hoses are secured with spring-type clips. In case of repair, only use spring-type clips. |
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| Spring-type clip pliers -VAS 5024- or hose clip pliers -V.A.G 1921- are recommended for fitting spring-type clips. |
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| 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 leakage test of cooling system using cooling system tester -V.A.G 1274- and adapters adapter -V.A.G 1274/8- and adapter -V.A.G 1274/9-. |
| Parts of cooling system, body side (radiator with two radiator fans) → Chapter. |
| Parts of cooling system, body side (radiator with one radiator fan) → Chapter |
| Removing and installing fan support with fans (Golf, Golf Plus, Touran) → Chapter |
| Removing and installing fan support with fans (Passat) → Chapter |
| Parts of cooling system - engine side → Chapter. |
| Removing and installing radiator (Golf, Golf Plus, Touran) → Chapter |
| Removing and installing radiator (Passat) → Chapter |
| Removing and installing coolant pump → Chapter. |
| Removing and installing thermostat → Chapter. |
| Checking pressure relief valve in filler cap → Chapter. |
| Checking engine oil cooler for leaks → Chapter |
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