| The lane change assist requires information from a large number of different control units connected to different bus systems. The description below lists which control units are used by the lane change assist to exchange information across bus systems and which information and variables are transmitted. |
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| 1: Lane change assist warning lamp in driver side exterior mirror -K233- |
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| 2: Lane change assist warning lamp in front passenger side exterior mirror -K234- |
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| 3: Lane change assist control unit -J769- |
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| 4: Button for lane change assist -E530- |
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| 5: Control unit in dash panel insert -J285- |
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| 6: ABS control unit -J104- |
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| 7: Data bus diagnostic interface -J533- |
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| 8: Front information display and operating unit control unit -J523- |
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| 9: Trailer detector control unit -J345- |
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| 10: Convenience system central control unit -J393- |
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| 11: Onboard supply control unit -J519- |
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| 12: Entry and start authorisation control unit -J518- |
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| 13: Rain and light sensor -G397- |
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| 14: Lane change assist control unit 2 -J770- |
| Bus networking: The diagram shows which |
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