| Even small amounts of dirt can cause malfunctions. For this reason, when working on the turbocharger or the fuel supply system and injection system, please observe the following basic rules carefully: |
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| Carefully clean connection points and the surrounding area with engine cleaner or brake cleaner and dry thoroughly before opening. |
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| Plug open lines and connections with suitable protective caps immediately. |
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| Place parts that have been removed on a clean surface and cover them over. Use only lint-free cloths. |
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| Only install clean components; replacement parts should only be unpacked immediately prior to installation. Do not use parts that have been previously unpacked and stored away loose (e.g. in toolboxes, etc.). |
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| When the system is open: Do not work with compressed air. Do not move the vehicle unless absolutely necessary. |
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