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Servicing diesel direct injection system
Rules for cleanliness
When working on the fuel supply/injection system, carefully observe to the following 5 cleanliness rules:
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◆ Thoroughly clean all unions and the adjacent areas before disconnecting.
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◆ Place removed parts on a clean surface and cover. Use 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 install clean components:
Only remove replacement parts from packaging immediately prior to installation.
Do not use parts that have been stored loose (e.g. in toolboxes etc.).
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◆ When the system is open:
Do not work with compressed air if this can be avoided.
Do not move vehicle unless absolutely necessary.
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◆ Also ensure that no diesel fuel runs onto the coolant hoses. If necessary, the hoses must be cleaned again immediately. Affected hoses must be replaced.
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