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E46 Parking Sensors

  • 27-11-2009 10:35am
    #1
    emac82
    Registered Users Posts: 17 ✭


    I have a 05 BMW e46 msport coupe and with the last week or so the parking sensors warning tone has been coming on every time i put it in reverse. I have checked that the sensors are working as they are all clicking. I've washed the car and there doesnt appear to be anything obstructing the sensors. Any ideas as to what might be causing this? Thanks in advance.


Comments

  • #2
    Seth Brundle
    Moderators, Politics Moderators Posts: 40,351 Mod ✭✭✭✭Seth Brundle


    One of the presumably has gone bad. You would probably need a diagnosis to find out which one it may be or alternatively using the akward method, try and disconnect them one at a time and see if it stops!


  • #3
    Robbo
    Moderators, Social & Fun Moderators, Society & Culture Moderators Posts: 10,572 Mod ✭✭✭✭Robbo


    If they're all clicking when you put your ear to them, the problem is possibly with the control unit which is costly.

    If you can get the car rigged up to a diagnostics machine, you'll get a more precise answer. There's a few good independent BMW specialists who could be of assistance.


  • #4
    sunshinediver
    Closed Accounts Posts: 170 ✭✭sunshinediver


    emac82 wrote: »
    I have a 05 BMW e46 msport coupe and with the last week or so the parking sensors warning tone has been coming on every time i put it in reverse. I have checked that the sensors are working as they are all clicking. I've washed the car and there doesnt appear to be anything obstructing the sensors. Any ideas as to what might be causing this? Thanks in advance.


    I have the same model as you and noticed the same problem last year. I found that sometimes in cold weather they go like this, washed them with warm water and it never happened again.


  • #5
    emac82
    Registered Users Posts: 17 ✭emac82


    Thanks for the help lads! I'll get a diagnostic check done anyway! Hope its nothing too expensive. Cheers.


  • #6
    nogoodnamesleft
    Registered Users, Registered Users 2 Posts: 1,031 ✭✭✭nogoodnamesleft


    Normally when parking sensors go its one of the sensors at fault and the parking sensor controller detects the fault, makes an audible beep and turns itself off.
    1st bet would be to run diagnosis on the controller. If its one of the sensors the controller will actually tell you which one.
    On VWs its used work for a few seconds and allowed me to test when the car was in reverse. Vw dealer raped me for 80euro for the unpainted sensor as I couldnt source it anywhere else.

    This crowd in germany have decent prices havent used them thou (they didnt stock VW sensors when I enquired) :(

    http://www.kufatec.de/shop/product_info.php/info/p1105


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