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388 Display messages and warning/indicator lamps
Display messages
Possible causes/consequences and
Electronic Rear Axle Differ-
* The electronic locking differential has failed.
ential Lock Inoperative
Electronic Rear Axle Differ-
* The electronic locking differential is overheated.
ential Lock Currently
Unavailable
Rear Spoiler Control Sys-
* The rear spoiler cannot reach the end position during retraction and extends again if possible.
tem Inoperative
Rear Spoiler Inoperative
* The vehicle's speed is limited to the value displayed. Therefore, the rear wing cannot reach the end position during
Limit XXX mph
Solutions
M
Consult a qualified specialist workshop.
#
Let the electronic locking differential cool down by driving defensively.
#
The vehicle's speed may be restricted.
If retraction of the rear spoiler is blocked, e.g. by ice:
Ensure that the cause of the blockage has been removed.
#
Switch the vehicle off and switch it back on
#
Start the vehicle after a few minutes.
#
The rear spoiler will move to the original position.
If the problem persists or the cause cannot be detected:
Consult a qualified specialist workshop.
#
extension and only extends as far as is possible.
If extension of the rear wing is blocked, e.g. by ice:
Ensure that the cause of the blockage has been removed.
#
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