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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 08-11-2006, 01:07 AM
Howie Howie is offline
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Location: Southampton (UK)
 
Join Date: Jan 2006
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Mein Auto: 2001 330i Sport Manual
Parking sensors have stopped working

Over the past couple of weeks when putting my car in reverse the parking sensors beep has been coming on, on a continuous 'beep'. If I took it out of gear, then back into reverse it then worked fine. However, yesterday if finally stopped working all together and there are now no beeps. Has anyone come across this problem before? Is the parking sensor system expensive to repair? Any advice would be greatly appreciated.
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  #2  
Old 01-14-2008, 07:31 AM
djeram djeram is offline
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Location: Middlesex, UK
 
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Mein Auto: 330ci E46
I got the same problem... gutted!.. Help !!
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  #3  
Old 01-22-2008, 01:00 PM
silver1011 silver1011 is offline
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Location: York, UK
 
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Mein Auto: 320d SE
Its a sure sign of a faulty PDC (Park Distance Control) sensor.

I had the exact same thing happen to me, unfortuantly it is very difficult to determine yourself which one of the four sensors is faulty.

I had my local stealer connect the car up to their diagnostics machine and it was able to tell them which sensor needed replacing!

A quick and easy but quite expensive fix.
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  #4  
Old 12-03-2010, 03:14 PM
makem-shep makem-shep is offline
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Location: sunderland
 
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Mein Auto: bmw e46 325
waist ov money.....just put car in reverse (ignition on,engine off) and the sensor not making a clicking noise is the faulty one!!
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  #5  
Old 12-03-2010, 03:17 PM
jcourcoul jcourcoul is offline
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Heh heh, or if you're too deaf to hear the ultrasound kicking in (like me), I guess you can stick the family dog next to each and get a similar reaction....
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  #6  
Old 12-03-2010, 06:39 PM
makem-shep makem-shep is offline
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U cud yeh. But if u cud b botherd to even try it u will find that not only do they make a sound but if u touch them u can feel the vibrations. But not on the faulty 1.. Bt by all means go blow ya coin!!!!!
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  #7  
Old 12-03-2010, 10:13 PM
jcourcoul jcourcoul is offline
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BTW, the most common cause of dead ultrasound distance sensors, besides old age, is an overager carwash. Especially if you use those high pressure washer wands: one good squirt from up close and you'll get a dead sensor for sure.

Of course, you should check the connectors and cabling first, before declaring them DOA.
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Last edited by jcourcoul; 12-03-2010 at 10:14 PM.
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  #8  
Old 12-04-2010, 12:29 AM
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Fast Bob Fast Bob is offline
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PARKING SENSORS ????????????????????

What are you guys, like 95 years old ?
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  #9  
Old 12-04-2010, 07:55 AM
jcourcoul jcourcoul is offline
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Quote:
Originally Posted by Fast Bob View Post
PARKING SENSORS ????????????????????

What are you guys, like 95 years old ?
Hold yer horses, Superman! We're talking about the round dimples in the rear bumpers that warn you of slamming against the neighbor's kid. Not the springs sticking out each side that rattled against the curbside and warned Grampa against wheel rash....
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Last edited by jcourcoul; 12-04-2010 at 08:00 AM.
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  #10  
Old 12-04-2010, 08:00 AM
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Fast Bob Fast Bob is offline
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Quote:
Originally Posted by jcourcoul View Post
Hold yer horses, Superman! We're talking about the round dimples in the rear bumpers that warn you of slamming against the neighbor's kid. Not the springs sticking out each side that rattled against the curbside and warned Grampa against wheel rash....
Yes, I`m quite aware of that particular brand of electronic nannyism....it comes as part of the Power Sunvisor Package, doesn`t it ? :-)
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  #11  
Old 12-04-2010, 09:58 PM
jcourcoul jcourcoul is offline
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Quote:
Originally Posted by Fast Bob View Post
Yes, I`m quite aware of that particular brand of electronic nannyism....it comes as part of the Power Sunvisor Package, doesn`t it ? :-)
Then you are gonna LOVE this:

http://www.latimes.com/business/auto...,5263647.story

Mandatory by 2014.
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  #12  
Old 12-05-2010, 12:34 AM
TerraPhantm TerraPhantm is offline
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Quote:
Originally Posted by Fast Bob View Post
PARKING SENSORS ????????????????????

What are you guys, like 95 years old ?
Meh, IMO it's helpful for when you're getting into really tight spaces. It's not really necessary on a car as small as the E46, but on bigger cars it's a godsend. My uncle let take his 750Li into Manhattan not too long ago, and there's no way I would've been able to park that boat on the streets without those parking sensors (especially the visual PDC component)
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