| Safety measures to apply when working on the fuel injection and ignition system |
WARNING | The fuel system is under pressure! Before opening the system lay cleaning cloths around the connection point. Reduce pressure by carefully releasing the connection point. |
|
| Observe the following points to prevent injury to persons and/or damage to the injection and ignition system: |
| t
| Do not touch or remove ignition leads with the engine running or at start speed. |
| t
| Only disconnect and connect wires of the injection and ignition system - and high-voltage and measuring device wires - when the ignition is switched off. |
| t
| If the engine must be operated at start speed without it starting, as for example, when checking the compression pressure: open lid of fuse carrier below the dash panel and unplug fuse for injection valves -N30, N31, N32, N33- → Current flow diagrams and Fitting locations. |
| t
| Do not carry out engine wash unless the ignition is switched off. |
| t
| Switch off the ignition before disconnecting and connecting the battery, as this may damage the 4AV control unit. |
| If test and measuring devices are required during test drives observe the following: |
| t
| Always secure the test and measuring devices on the rear seat and have a second person operate them there. If the test and measuring devices are operated from the front passenger seat, the passenger could be injured by the release of the front passenger airbag in the event of an accident. |
|
|
|
