| Note the following if testers and measuring instruments have to be used during a road test: |
WARNING | t
| Test equipment must always be secured on the rear seat and operated from that position by a second person. |
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| If test and measuring instruments are operated from front passenger's seat and the vehicle is involved in an accident, the person sitting in this seat could be seriously injured when the airbag is triggered. |
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| Observe the following to avoid injuries to persons and/or damage to the injection and ignition system: |
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| Do not touch or detach the ignition wires when the engine is running or while starting the engine. |
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| The ignition must be switched off before disconnecting or connecting ignition system wiring, high-voltage wires and test leads. |
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| If the engine is to be operated at starter motor speed without it starting (e.g. compression test), unplug the connectors at the ignition coils and injectors. After completing the work, interrogate and erase the fault memory. |
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| Always switch off the ignition before cleaning the engine. |
Caution | t
| Always switch off the ignition before connecting or disconnecting the battery, otherwise the engine control unit may be damaged. |
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| Observe notes on procedure for disconnecting the battery → Rep. Gr.27. |
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