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Thread: E38 Parking Sensor Problem.

  1. #1
    Join Date
    Jul 2008
    Location
    Ireland
    Posts
    2,602
    My Cars
    2005 E66 740Li

    E38 Parking Sensor Problem.

    Hi guys.Please see my video below, the car is beeping at the rear with no obstacles in the way, but only when the engine is running.

    https://youtu.be/7xU1pb8LYNc
    Last edited by voodoomelon; 07-25-2017 at 02:53 PM.

  2. #2
    Join Date
    Apr 2006
    Location
    N Miami FL
    Posts
    927
    My Cars
    00 E38 750IL 92 E31 850
    One of your sensors must be bad or obstructed......I was told that you can turn on ignition (car not running) put tranny in reverse and go to back/front and put your hand over each sensor....if you hear a low pitched clicking then its working fine.....never tried it tho...
    92 Dinan Stage III 850 Twin Turbo (1 of 4)
    625 Hp on 93 pump gas @ 14 psi 660 ft lbs torque


  3. #3
    Join Date
    Feb 2010
    Location
    Hampshire UK
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    99 840ci Sport Indv
    Got LED bulbs fitted?
    Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i


    My BMW Repair YouTube Channel
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  4. #4
    Join Date
    Jul 2008
    Location
    Ireland
    Posts
    2,602
    My Cars
    2005 E66 740Li
    Thanks for the replies guys.
    Two of the sensors are new, eBay jobbies but never had issues with them before and been using them for years across a few cars.

    I'm going to try swapping some of the fronts to the rear to see if I can isolate the problem as I have no problems with the fronts.

    No LEDs Timm, just Orion V2 angel eyes in the front which have been there 7-8 years with no problems.
    I do remember having sh1tty ballast based angel eyes before them which did cause PDC errors alright but never had any problem with these before.

  5. #5
    Join Date
    Jul 2008
    Location
    Ireland
    Posts
    2,602
    My Cars
    2005 E66 740Li
    Well, found the cause.

    I switched all sensors from the back to the front and voila, the problem is now at the front.

    In a process of elimination, the two brand new eBay senors are causing grief. Both came from the one UK seller. But i had purchased a third from another UK seller and its also giving grief.
    So all three senors are causing errors.

    Timm I don't suppose you'd have an old working sensor kicking around you could send me in a packet for a few quid? I only need one.

    This is the last issue with the car to be sorted before I stick it up for sale as a perfect example.

    Thanks.

  6. #6
    Join Date
    Feb 2010
    Location
    Hampshire UK
    Posts
    8,867
    My Cars
    99 840ci Sport Indv
    I've got no E38 bits left at all - it's all E31 and E64 stuff these days!
    Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i


    My BMW Repair YouTube Channel
    My Current 840ci Sport Individual
    My Current 650ci Sport Individual
    My E31 Repair and Information Website
    My E38 Repair and Information Website
    My E63/E64 Repair and Information Website

    Chase - Heroes to a generation

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