2005 E46 330D Convertible - reversing sensors not working - Page 2

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    #11
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    Quote Originally Posted by sam1832 View Post
    Yes, its called a PDC unit

    And its in the boot behind the trim on the battery side,

    As you say you get the beep, I wouldn't be looking at the pdc unit first,

    If you put the car in reverse, with the ignition to 2 listen at the sensors for a clicking,

    If none of them click you may have a problem with the wireing from the pdc unit,
    well thanks again for the diagnostic check as the 2 sensors on the drivers side weren't clicking while the other 2 were

    I would spray them with WD40 but you didn't mention how easy it is to push them in as I gave them a little prod and they disappeared into the bumper . Looks like I've got to take the bumper off when I get time

    is it OK if I swap the sensors when the bumper is off to see if it's the sensors or the wiring as I presume they are all the same part?
     
     

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    #12
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    they should'nt be that easy to push in, lol

    i sense somebody else may have had a play with them, they use two clips either side of them to hold them in and they are rather hard to get out

    either it wernt in properly or the clips are broken,

    yup you can swap the two sensor's that dont work for the two sensors that do work,

    they are all exactly the same, and they are not possition dependent
     
     

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    #13
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    Quote Originally Posted by sam1832 View Post
    they should'nt be that easy to push in, lol

    i sense somebody else may have had a play with them, they use two clips either side of them to hold them in and they are rather hard to get out

    either it wernt in properly or the clips are broken,

    yup you can swap the two sensor's that dont work for the two sensors that do work,

    they are all exactly the same, and they are not possition dependent
    now you say that it's obvious someone has had a fiddle with it before as they simply slid straight in with no resistance. I've got some new sensors thanks to my mate but don't have them to hand as they are in my other car in his garage.

    I've just checked realoem but it's not too clear

    http://realoem.com/bmw/showparts.do?...28&hg=66&fg=05

    do you know if the clip is part of the sensor and mine may be broken or are the separate parts? If they are separate then I presume they will be cheap so I will buy the clips so I at least have them when the bumper is off rather than finding out I need them when I do take it off. If they are part of the sensor then I've got new sensors
     
     

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    #14
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    no the clips are not part of the sensors,

    Hmmm i cant find them on real oem,

    iirc you can buy them tho i read some one talking about it on here,
     
     

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    #15
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    I've just done a search and got 2 thread results, one being your guide. I noticed your guide shows a pic and it seems to have one way clips. Anyway, after reading through the guide it shouldn't take as long as I thought sp I'll drop my bumper Saturday

     
     

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    #16
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    That's not the clip, that's the part that the clip holds on too,

    The clip is in the bumper
     
     

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