Caution | Due to the enclosed spaces, observe the following during all assembly work, particularly in the engine compartment: |
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| Route lines of any kind and cables so that original routing can be restored. |
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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 5024A- are recommended for installation of 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). |
| Test for leaks in cooling system using cooling system tester -V.A.G 1274- and adapters for cooling system tester -V.A.G 1274/8- and -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 cowling with radiator fan -V7- → Chapter. |
| Removing and installing radiator fan -V7- → Chapter. |
| Removing and installing coolant pump → Chapter. |
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