Caution | t
| 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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| To avoid damage to lines, ensure sufficient clearance to all moving or hot components. |
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Note | t
| 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 5024A- are recommended for installation of spring-type clips. |
| Test cooling system for leaks using cooling system tester -V.A.G 1274- and adapter for cooling system tester -V.A.G 1274/9-. |
| Assembly overview - parts of cooling system, body side → Chapter. |
| Assembly overview - parts of cooling system, engine side → Chapter. |
| Removing and installing coolant pump → Chapter. |
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