Quote:
Originally Posted by AP
I have a 2017 540 with lane assist. Been using it over the 5 years a lot despite it not being perfect so well used to its foibles.
However this system appears to have developed an issue
It seems to find the road markings more difficult to detect and when it does lock on , the steering is very erratic. To the point it actually feels quite dangerous to use.
No errors messages are displayed
I first thought perhaps there was some dirt covering the camera on the windscreen but confirmed it was all clean
(My assumption is that these are the sole sensors used by this system and not the radar detector under the front bumper use by the cruise control component)
This has occurred on the last few journeys so a restart of the car has not resolved this.
This sounds like a visit to the dealership and as it's out of warranty probably not a cheap fix but wondering if anyone has encountered this issue?
|
Did you end up getting this fixed? My lane assist never works, it doesn’t detect the motorway lines even if they’re clearly marked out. On very straight roads it does okay, but it’s seems very erratic compared to another car that I had with a similar feature. When there is a slight bend in the road the lane keep assist shuts off right away. Traffic jam assist doesn’t work either, BMW states that the car is meant to follow cars in front when it doesn’t detect any road markings when below 43mph but I’ve never experienced this. Even their technical document states that when the car is below 70mph and road markings are lots then the car will use another car in front and track it. Not sure if an istep update will resolve this, i haven’t had any permanent codes with the KAFAS either. My active cruise control works well and keeps its distance between cars.