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| Vehicle diagnosis, testing and information system -VAS 5051B- with appropriate diagnosis lead |

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| Test equipment must always be secured to the rear seat when road-testing the vehicle. |
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| While the vehicle is moving this equipment must be operated by a second person; NOT by the driver. |
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| Connect vehicle diagnosis, testing and information system -VAS 5051B- to vehicle with appropriate diagnosis lead. |
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| Switch on vehicle diagnostic, testing and information system. |
| The vehicle diagnostic, testing and information system is ready for operation when the selector buttons for the operating modes appear on the screen. |
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| The vehicle must be standing on a level surface. |
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| The vehicle must be unladen. |
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| Electronically controlled damping control unit -J250- must be correctly coded. |
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| The event memory must not contain any faults relating to vehicle level senders. |

Note | When control units or other electrical/electronic components have been renewed, the relevant component(s) must be adapted via „Guided Functions“. |
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| Touch the Guided Functions button on the display screen. |
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| Select the relevant program in „Guided Functions“. |
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| Follow the instructions on the screen. |

Note | If the reference position has been re-adapted, on vehicles with lane departure warning function the lane departure warning control unit -J759- with integral camera must be recalibrated → Chapter. |
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