| Carefully observe the following “5 rules” for cleanliness when working on the exhaust turbocharger: |
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| Thoroughly clean the connection points and their surroundings before releasing. |
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| Place removed parts on a clean surface and cover. Do not use fuzzy cloths! |
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| Carefully cover or close opened components if the repair is not completed immediately. |
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| Only install clean parts. Do not remove new parts from their wrapping until just before installing. |
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| When the system is open: Do not work with compressed air, do not move the vehicle. |
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