| When working on the fuel supply/injection system, pay careful attention to the following „6 rules“: |
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| Thoroughly clean all unions and surrounding areas before disconnecting. |
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| Place parts that have been removed on a clean surface and cover them. Use only lint-free cloths. |
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| Carefully cover or seal open components if repairs cannot be carried out immediately. |
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| Only fit clean components: Only take spares out of their packaging just before assembly. Do not use parts that have been stored loose (e.g. in tool boxes etc.). |
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| If the system is open, do not work with compressed air if this can be avoided. Do not move the vehicle unless absolutely necessary. |
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| Protect separate connectors from dirt and humidity. Only connect if they are dry. |
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