| To avoid any risk of injuries to persons and/or damage to the injection and glow plug system, always observe the following safety precautions: |
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| Persons wearing a pacemaker should not lean over the engine compartment while the engine is running, as the injectors use high voltage pulses. |
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| Do not open any fuel line connections while the engine is running. |
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| Always switch off the ignition before connecting or disconnecting injection and glow plug system wiring or tester cables. |
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| Always switch off the ignition before cleaning the engine. |
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| Always switch off the ignition before connecting or disconnecting the battery, otherwise the engine control unit may be damaged. |
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| Certain tests may lead to a fault being detected by the control unit and stored. The event memory should therefore be interrogated and (if necessary) erased after completing the tests and any repair work that may be required. |
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