Parking sensor fault
#1
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My cars becoming a wallet wacker, do all X350's fall apart at 100,000 miles? Anyway a few days ago my rear parking sensors started bleeping for no reason when reverse was selected, then there was a bleep when R selected silence then random bleepage when reversing, then they worked fine a few times, now they bleep continuously when in drive and the front ones bleeping occasionally. Luckily there is a mute switch in the head liner.
I am guessing it's not going to be a £20 sensor replacement.
Can anyone be kind enough to shine a light on it please?
I am guessing it's not going to be a £20 sensor replacement.
Can anyone be kind enough to shine a light on it please?
#2
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not sure, but my front sometimes gives me erroneous beeping say when i'm stopped, and a car pulls alongside me...not anywhere close, mind you. i'm thinking that maybe they're just really sensitive. I can pull up to a wheelstop...nothing, then BAM constant beep, then move a few inches further and silence again. Its like the radar is either reflecting off of something to give false readings. Unlike the traditional ultrasonic, I think this is a little different when the adaptive module is installed.
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BigWilliam (11-27-2012)
#3
#5
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do all X350's fall apart at 100,000 miles?
Try disconnecting each sensor in turn to see which one is a rogue. Other thing is to make sure they are really clean and free of crud, but I expect you have done this already.
#6
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If the rears beep continuously when you have selected reverse then in all probability you have two failed sensors.
If you wish you can pull a fuse to stop the noise for the time being.
When you start the repair, you need to lower the rear bumper to give access to the sensors
Replace fuse,ign in posn. two, reverse selected.
Substitute two sensors one at a time until noise stops and system works normally.
Used sensors are available,the ones on e bay are expensive IMO.
I paid 20-25 GBP for used ones
If you wish you can pull a fuse to stop the noise for the time being.
When you start the repair, you need to lower the rear bumper to give access to the sensors
Replace fuse,ign in posn. two, reverse selected.
Substitute two sensors one at a time until noise stops and system works normally.
Used sensors are available,the ones on e bay are expensive IMO.
I paid 20-25 GBP for used ones
The following users liked this post:
BigWilliam (12-02-2012)
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#8
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not sure, but my front sometimes gives me erroneous beeping say when i'm stopped, and a car pulls alongside me...not anywhere close, mind you. i'm thinking that maybe they're just really sensitive. I can pull up to a wheelstop...nothing, then BAM constant beep, then move a few inches further and silence again. Its like the radar is either reflecting off of something to give false readings. Unlike the traditional ultrasonic, I think this is a little different when the adaptive module is installed.
I think the battery is probaby original and now 8 years old (I've had the car 3 months), and although I have no starting issues, and generally travel 25+ miles, does anyone feel it could be a battery thing, or are we back to sensors?
I don't have adaptive cruise or anything so fancy.
#10
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