404 Display messages and warning/indicator lamps
Display messages
Possible causes/consequences and
* When you establish the electrical connection to the trailer, Blind Spot Assist is unavailable.
Press the left-hand Touch Control and confirm the display message.
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* When you establish the electrical connection to the trailer, Active Blind Spot Assist is unavailable.
Press the left-hand Touch Control and confirm the display message.
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* Cruise control is malfunctioning.
Consult a qualified specialist workshop.
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* Parking Pilot and Parking Assist PARKTRONIC are temporarily unavailable. The ambient conditions are outside the
system limits (
page 184). Beware of the entire vehicle surroundings.
→
As soon as the ambient conditions are within the system limits, the system will become available again.
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* Parking Pilot and Parking Assist PARKTRONIC are malfunctioning.
Stop the vehicle, paying attention to road and traffic conditions, and restart the engine.
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If the display message continues to be displayed, consult a qualified specialist workshop.
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Solutions