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Thread: immobilizer problems!!

  1. #1
    Join Date
    Apr 2007
    Posts
    84

    Default immobilizer problems!!

    my car wont start, have had someone look at it, no mechanical/electrical faults. he thinks its the immobilizer stopping the car from being started. all the lights come on including radio, dash lights etc when you turn the key but it wont turn over. can someone help me with the location of the immobilzer or a way of getting the car to start? possibly removing the immobilzer all together? i have the keyless remote, but the little red light has only everflashed once, just once, and the battery in it is fine. do i need this to disable the immobilzer?

    thanks so much for any input!

    i want my little baby to start again!
    1995 m50 520i executive

  2. #2
    Join Date
    Apr 2007
    Posts
    84

    Default dont worry, im no thief

    i re'read my post, it sound like im a thief but im not. ive ruled everything else out, starter motor, ignition switch etc so their are only two thing left, imobilzer and starter relay. the mechanic disconeccted the battery with the ignition set to position 1, and now the blinkers are always on. im pretty sure he engaged the immobilizer and made the probelm worse....i need help really badle! someone, im dying here, and my e34 is almost dead to.
    1995 m50 520i executive

  3. #3
    Join Date
    Feb 2007
    Location
    GreenHills East-Philippines
    Posts
    1,063

    Default

    Quote Originally Posted by adashio
    i re'read my post, it sound like im a thief but im not. ive ruled everything else out, starter motor, ignition switch etc so their are only two thing left, imobilzer and starter relay. the mechanic disconeccted the battery with the ignition set to position 1, and now the blinkers are always on. im pretty sure he engaged the immobilizer and made the probelm worse....i need help really badle! someone, im dying here, and my e34 is almost dead to.

    that happened to me in my e36..my immobilizer got fu*$%d up tried my other key and voila!it started

    HID 5000k low 3000k fogs
    dynaudio seps. mc intosh amp
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  4. #4
    Join Date
    Mar 2006
    Location
    Great Britain
    Posts
    446

    Default

    Try bypassing the starter relay - it's in the front fuse & relay box (I think there is also a starter immobilisation relay (SIR) behind the left hand pick plate but as far as I can remember the SIR feeds the starter relay).

  5. #5
    Join Date
    Feb 2007
    Location
    GreenHills East-Philippines
    Posts
    1,063

    Default

    Quote Originally Posted by pingu
    Try bypassing the starter relay - it's in the front fuse & relay box (I think there is also a starter immobilisation relay (SIR) behind the left hand pick plate but as far as I can remember the SIR feeds the starter relay).

    its not only the starter also the fuel pump doesn't work if the immobilizer is active

    HID 5000k low 3000k fogs
    dynaudio seps. mc intosh amp
    ACS w/yokohama advan sport tires
    Race logic TractionControl

  6. #6
    Join Date
    Apr 2006
    Location
    Bay Area, CA
    Posts
    395

    Default

    in 7 years of installing car security, i've never once ever seen a car with a failed immobilizer. Could be solenoid, starter, ignition switch. transmission selector could think its in drive?
    Greg Mannino
    Car Audio.Video.Security.Navigation Guru
    Electrical/Mechanical Specialist

  7. #7
    Join Date
    Apr 2007
    Posts
    84

    Default

    Quote Originally Posted by gmannino
    in 7 years of installing car security, i've never once ever seen a car with a failed immobilizer. Could be solenoid, starter, ignition switch. transmission selector could think its in drive?
    ok ive found out the car is totally immobilised including ignition and fuel. my key fob doesnt work, is this what UN imobilizes the car?

    do i need a new key? will this fix my immobilizer problems?
    1995 m50 520i executive

  8. #8
    Join Date
    Apr 2007
    Posts
    84

    Default

    Quote Originally Posted by adashio
    ok ive found out the car is totally immobilised including ignition and fuel. my key fob doesnt work, is this what UN imobilizes the car?

    do i need a new key? will this fix my immobilizer problems?
    comon guys i really need some help with this one.
    1995 m50 520i executive

  9. #9
    Join Date
    Sep 2006
    Location
    Stockholm
    Posts
    67

    Default

    You can't disable the EWS II immobilizer (guessing you have a 1995 built date?), I would say that you tow the car to a BMW dealer or a specialist that can work on EWS, you only have one key? Does it stop before getting to ignition? Than you need a better key.

    There is very unlikely a problem with the EWS system.

    So stupid persons tried to steal my only sold 540i/6 #794/797 ...

    But the EWS stopped them from getting away with the car but the steering wheel was sawed through and both door lock and ignition lock is destroyed

    Stephan
    1995 E34 540iM/6 #410/797
    1996 E34 540i/6 LE #768/797
    1996 E34 540iM/6 #774/797
    Missed:
    1995 E34 540i/6 #631/797
    1995 E34 540i/6 #736/797
    1996 E34 540iM/6 #788/797
    1996 E34 540i/6 #794/797

  10. #10
    Join Date
    Apr 2007
    Posts
    84

    Default price estimate??

    nice car, mines the exact same colour, yes sounds like the ews...looks like it will have be taken to a dealer. wat price should i be looking at for a diagnostic as well as resetting the ews system?

    whats the average price for a replacement key?
    1995 m50 520i executive

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