So I've been having an issue with my parking sensors when both in drive and reverse. Once I first shift into reverse the alarm goes off as a constant sound for maybe 5-7 seconds before turning off, but I haven't noticed it happen when in drive. The sensor alarm goes off from time to time in stand still traffic though when a car passes by when it doesn't seem at all to close. Something I noticed just now that may or not be normal. When I come to a low speed or stand still, is the button parking sensor mute button above on the roof by the sunshade storage supposed to turn red when you stop or slow down all the time? I don't recall if it ever did that before. When I am driving the light isn't on, but turns red when I am stopped and turns off again once I get going. I do know that it would stay a constant red color if I clicked the button to mute the alarm sound. There are no obstacles in the way. I reckon this is to let me know that there is an issue that needs to be looked at. I turned on the car ignition, keeping engine off and put the parking brake on. Shifted into reverse. All but 1 sensor in the inner front passenger side has the electric pulsing clicking noise. Would 1 bad front sensor cause both the front and back sensors when either in drive or reversing to have an issue or total fault? So now the question is, how do I go about checking that 1 sensor in the inner front passenger side? I would like to clean if needed or see if anything got loose. In the boot/trunk, could a fuse have gone bad? Is there anything I need to do in the boot/trunk to fix the sensor?

 

Brandon, while the X308 and X350 share several features, you may get a better response if you post in the X350 section of the forum.

 

Yea I just saw XJ and XJ8 in the heading forum, didn't notice the years were only 97-03.
I posted in the X350 years 03-09 now. Thanks letting me know.