| Visual inspection of high-voltage components and wiring for damage |
WARNING | Safety hazard: the engine can start unexpectedly. |
| Before carrying out general work on a vehicle with high-voltage electrical system, switch off the ignition and remove the ignition key from the vehicle. |
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WARNING | Working on vehicles with high-voltage wiring: |
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| Do not support yourself or tools on high-voltage wiring or associated components --> this can damage the insulation. |
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| High-voltage wiring must not be excessively bent or kinked --> this can damage the insulation. |
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| The round high-voltage connectors are colour-coded with an external coloured ring and are provided with mechanical coding or guide lugs. It is important to observe this coding when joining up the round high-voltage connectors, otherwise the connectors can be damaged. |
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DANGER! | Risk of fatal injury if high-voltage components are damaged. |
| Observe the following when working in the vicinity of high-voltage components or wiring: |
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| It is not permitted to use cutting or forming tools, other sharp-edged tools or heat sources such as welding, brazing, soldering, hot air or thermal bonding equipment. |
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| Before starting work, visually inspect the high-voltage components in the areas involved. |
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| Before working in the engine compartment, visually inspect the power electronics -JX1-, electric drive motor -V141-, air conditioner compressor -V470- and high-voltage wiring. |
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| Before working on the vehicle underbody, visually inspect the high-voltage wiring and covers. |
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| Before working on the rear section of the vehicle, visually inspect the high-voltage wiring and the electro-box with the maintenance connector for high-voltage system - TW -. |
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| Visually inspect all potential equalisation lines. |
| Check the following when making the visual inspection: |
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| There must be no external damage on any component. |
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| The insulation of the high-voltage wiring and potential equalisation lines must not be damaged. |
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| There must be no unusual deformation of the high-voltage wiring. |
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| All high-voltage components must be identified by a red warning sticker. |
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| Procedure: Performing visual inspection |
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| When performing the visual inspection of the engine compartment area, pay particular attention to the power and control electronics for electric drive, the high-voltage wiring for the battery and the air conditioner compressor and the high-voltage wiring for the electric drive motor. |
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| When performing a visual inspection of the the vehicle underbody, pay attention to the high-voltage wiring and the corresponding covers. |
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| When performing a visual inspection of the rear of the vehicle, pay attention to the hybrid battery, the high-voltage wiring for the battery and the electro-box with the maintenance connector. |
| Check the following when performing the visual inspection: |
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| There must be no external damage on any high-voltage components. |
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| The insulation of the high-voltage wiring must be intact and undamaged. |
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| Check for unusual deformations of the high-voltage wiring. |
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| If you notice anything unusual or if anything is unclear, ask the responsible high-voltage technician or electrically skilled person. |
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