| Removing and installing cooling system parts |
Caution | When doing any repair work, especially in the engine well, due to the cramped conditions, pay attention to the following: |
| Route all pipes/hoses (e.g. fuel, hydraulics, activated charcoal filter 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. |
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| When the engine is hot the cooling system is under pressure. If necessary release pressure before commencing repair work. |
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| Hose connections are secured with spring-type clips. When repairing, only use spring-type clips. |
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| To mount spring type clips use pliers -T20029-. |
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| Coolant hoses should be stress-free when installing, 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 -SAT 1274- and adapters -V.A.G 1274/3- and -V.A.G 1274/4-. |
| Parts of cooling system, body side → Chapter. |
| Parts of cooling system engine side → Chapter |
| Coolant mixture ratios → Chapter, draining and filling with coolant |
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