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Thread: Multiple yellow waring lights. EPS, automatic transmission, DSC, Brake

  1. #1
    Join Date
    Feb 2016
    Location
    Arlington, Texas
    Posts
    10
    My Cars
    2007 Z4

    Multiple yellow waring lights. EPS, automatic transmission, DSC, Brake

    2007 z4 3.0i with 145K
    last month while driving, there a shift noise the car go to slow mode. with the following Yellow warning lights. Electric power steering, automatic transmission, DSC, and brake. So I pulll in the side and restart and everything going away. Car drive normally. It occasionally has Service Engine Soon warning light. It begins to happen more often last 5 days almost once daily.
    Check the battery, cold voltage is 12.49V
    This morning , the z4 crank but could not start. Once it starts, all the warning lights are on ( Electric power steering, automatic transmission, DSC, brake, and Service Engine soon, the car is running slow. and the power steering is very stiff. hard to turn.

    Has been research to see any clue. after check all the fuses and power distribution control module. Fuse look ok . do not know about Power distribution control module. Restart the car and very thing run normally. '
    Went to auto zone to scan:
    It took a while but the follow error code show up:

    P0355 Camshaft Postion Sensor? A?Circ Malfunction
    P0700 Transmission Control System (MIL Request)
    P1727

    Read through few forums. One suggest to change the power distribution Control Module.
    Any suggestions
    Thanks

  2. #2
    Join Date
    Dec 2013
    Location
    Chicagoland area
    Posts
    4,372
    My Cars
    EXOTICS
    Most plausible is Crank position sensor.

    First attempt to remove,clean,re-install CKP sensor.
    clear codes, perform new scan after short drive cycle.

    If no improvement, replace.
    ONLY replace ANY BMW sensor with a Genuine BMW OE Replacement Part.
    Unless you enjoy chasing electrical gremlins or electronic anomalies.

  3. #3
    Join Date
    Feb 2016
    Location
    Arlington, Texas
    Posts
    10
    My Cars
    2007 Z4
    How to clear the codes

  4. #4
    Join Date
    Dec 2013
    Location
    Chicagoland area
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    4,372
    My Cars
    EXOTICS
    AutoZone?
    Unless you plan on purchasing a BMW scan tool.

    - - - Updated - - -

    Btw, do not purchase any sensors from AutoZone!

  5. #5
    Join Date
    Feb 2016
    Location
    Arlington, Texas
    Posts
    10
    My Cars
    2007 Z4
    Try to search for the location , but could not.
    where are this sensor locate
    if you have link that I look up

    Thanks

  6. #6
    Join Date
    Dec 2013
    Location
    Chicagoland area
    Posts
    4,372
    My Cars
    EXOTICS

  7. #7
    Join Date
    Feb 2016
    Location
    Arlington, Texas
    Posts
    10
    My Cars
    2007 Z4
    Finally get the part , crankshaft position Sensor
    replace it
    Car run beautiful
    Thank for your help

  8. #8
    Join Date
    Dec 2013
    Location
    Chicagoland area
    Posts
    4,372
    My Cars
    EXOTICS
    Good to know, glad I could help.

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