| Even small amounts of dirt can cause malfunctions. When working on the fuel supply system and injection system, pay careful attention to the following basic rules: |
| t
| Carefully clean connection points and the surrounding area with engine cleaner or brake cleaner and dry thoroughly before opening. |
| t
| Seal off open lines and connections immediately with suitable sealing caps. |
| t
| Place parts that have been removed on a clean surface and cover them over. Use only lint-free cloths. |
| t
| Carefully cover or seal open components if repairs cannot be carried out immediately. |
| t
| 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.). |
| t
| When the system is open: Do not work with compressed air. Do not move the vehicle unless absolutely necessary. |
| t
| Protect unplugged electrical connectors against dirt and moisture and make sure connections are dry when attaching. |
|
|
|
