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Thread: 2005 bmw 645 ci car strange problems, not start correctly , errors ! Help

  1. #1
    Join Date
    May 2016
    Location
    los angeles
    Posts
    2
    My Cars
    2005 BMW 645 CI

    Unhappy 2005 bmw 645 ci car strange problems, not start correctly , errors ! Help

    bmw 645 ci 2005

    My car did not start a few times looks like it was low on battery no cranking at all. hooked up

    a charger to car and it ran started fine for a few days then not crank again( i take repeated

    short trips to work each day 1 to 3 miles of driving only)

    I jump start it last time at night went into limp mode and was getting error code p0335 and

    p1727
    when i had the code read . The triple a battery guy came and check the battery and with the

    following results

    BATTERY TEST RESULTS:

    OE CCA: 850CCA
    MEASURED: 776CCA
    RATED: 850CCA
    TEMPERATURE : 71 f
    VOLTAGE: 12.05 V

    AND IT SAYS YOUR BATTERY IS IN GOOD CONDITION , BUT IT IS A LITTLE DISCHARGFED . PLEASE

    RECHARGE OUR BATTERY AND CONTINUE WITH NORMAL SERVICE



    STARTER TEST:

    CRANKING NORMAL
    VOLTAGE: 11.19V
    AMPS:125.2A
    TIME: 3.48 S



    CHARGING SYSTEM TEST:
    NO PROBLEMS

    NO LOAD 13.90 V, 72.4 A
    LOADED 12.97V, 132.0A

    with that in mind

    the car started once and ran in "limp mode"
    then we turned it off and would not start again and computer gave code " p0335 and p1727"

    no matter what we do or jump start the car by the AAA guy it would not start so we ended up

    calling a flat bed to tow it home.


    Next day the car started fine and was not in limp mode

    so i drove it to work and it was fine . Keep in mind i drive 1 mile to work each day only so

    car is driven a few miles a day only.

    So when i got home i hook the car up to my battery charger charged it for couple hours until it

    is FULL! Started fine again and ran ok took it out ran it hard a few times and I got
    warning message on my screen all of a sudden

    Warning #1
    "Transmission Malfunction "
    "Gear can be engaged without depressing the brake. Drive moderately!Have the system checked by

    the dealer,

    then, warning #2

    "Increased Emmissions "warning was shown right after that
    Emissions - related malfunction . Have the system checked by your bmw center as soon as

    possible

    seems like the car is in limp mode and power is limited right after that...

    Please help and let me know how to diagnose this problem? Can it just be a battery going bad

    that caused all these errors? THANK YOU

  2. #2
    Join Date
    May 2016
    Location
    los angeles
    Posts
    2
    My Cars
    2005 BMW 645 CI
    Any one or any experts out there can help? My car just all of a sudden stalled at a stop sign again the other night and won't restart till 5 to 10 minutes after many retries? Can it be just the battery or the crank position sensor error causing the stall? Please help

  3. #3
    Join Date
    Nov 2016
    Location
    reynoldsburg, ohio united
    Posts
    1
    My Cars
    2004 bmw 645 ci e63
    my car does the dsame thing it will c crank then die if the batter has no charge to it I think its a drain any luck getting an answer?

  4. #4
    Join Date
    Jan 2017
    Location
    New Zealand
    Posts
    13
    My Cars
    BMW 645Ci, 525i

    Conclusion:

    I was talking to a mechanic who had many years experience with BMW.
    I had been monitoring my battery voltage and noticed it did not begin to charge until I had done several km's.
    He told me that the alternator will not begin charging until the engine has warmed up.
    Maybe your short trips means that the battery is not being charged enough.
    Last edited by kavala; 02-02-2017 at 10:17 PM.

  5. #5
    Join Date
    Jan 2017
    Location
    New Zealand
    Posts
    13
    My Cars
    BMW 645Ci, 525i
    A mechanic, who had many years experience with BMW, told me that
    the alternator will not begin to charge until the engine is hot.
    I had been monitoring my battery voltage and noticed that it did
    not begin to charge until after about 6km's.
    Maybe because of your short trips, your battery is not being charged enough ???

  6. #6
    Join Date
    Dec 2007
    Location
    Mystic, CT
    Posts
    160
    My Cars
    2002, 320/6 Baur
    I had similar messages and I replaced the battery and it has been fine. It never refused to crank or start, but did get various messages and once or twice limp mode.

  7. #7
    Join Date
    May 2017
    Location
    ATLANTA
    Posts
    5
    My Cars
    05 BMW 645CI
    I have a similar problem and I took it to the dealer and I am also replacing the IVM module. Fixed!

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