If no warning lamp lights up, Lane Assist is not ready to intervene(passive system status) or is switched off.
Driver intervention prompt
If there is no steering activity, Lane Assist prompts you to drive in the middle of the lane by means of acoustic
warnings and a display on the instrument cluster.
Lane Assist switches to the passive state if you do not react.
Independently of the steering activity, you are also prompted to drive in the middle of the lane by means of a display
on the instrument cluster and acoustic warnings if the corrective steering intervention takes place for an extended
time.
Steering wheel vibration
The following situation can cause the steering wheel to vibrate:
—The system can no longer detect a lane during a major steering intervention.
You can also select theVibration or Steering wheel vibration option in the Assist systems menu on the Infotainment
system. In this case, the steering wheel will vibrate if the vehicle drives across a detected road lane marking when
Lane Assist is active.
Troubleshooting
Error message, Lane Assist not available
An indicator lamp lights up in the instrument cluster. A message will also appear on the instrument cluster display.
—The camera window is dirty. Clean the windscreen (→ Vehicle care).
—The view of the camera is impaired due to the weather conditions, e.g. snow, or due to detergent deposits or
coatings. Clean the windscreen (→ Vehicle care).
—The view of the camera is impaired by add-on parts or stickers. Keep the area around the camera window clear
(→ Accessories, modifications, repairs and renewal of parts).
—The camera has been displaced or damaged, e.g. due to damage to the windscreen. Check whether damage is
visible (→ Accessories, modifications, repairs and renewal of parts).
—The camera was automatically deactivated due to high ambient temperature or long periods of direct sunlight.
When the camera is available again, Lane Assist is also available again. Switch off and restart the engine.
—Fault or malfunction. Switch off and restart the engine.
—If the problem persists, go to a correspondingly qualified workshop.
It may take several seconds before a system error is detected one the ignition is switched
on.
The system behaves differently than expected
1. Do not attach any objects to the steering wheel.
252