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  1. #1
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    Coldstart sounded like i owned a truck! SES light!

    Went to start my car, coldstart, it started right up but ran choppy as hell!!! Shaking and car was about to shut off, couldnt hold a idle..
    it was about to die but didnt..

    ses came up , misfire cylinder 5..

    i shut off the jb4 (map 0) and cleared the code, started it again and same thing. Ses and misfire cylinder 5.

    my exhaust is divorced and the passenger side was smoking and spitting out gasoline!!!

    wtf is happening?
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

  2. #2
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    coil pack in cyl 5 is out. If not that check plugs

    steps to fix

    Change plug 5
    Change coil pack 5




  3. #3
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    yup, or injector, same flowchart as always.. Mine did that.. justhappened to be the first time i let the mrs take it to wawa.. she was so scared i would flip for breaking my car..

  4. #4
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    Click here to enlarge Originally Posted by 5soko Click here to enlarge
    Went to start my car, coldstart, it started right up but ran choppy as hell!!! Shaking and car was about to shut off, couldnt hold a idle..
    it was about to die but didnt..

    ses came up , misfire cylinder 5..

    i shut off the jb4 (map 0) and cleared the code, started it again and same thing. Ses and misfire cylinder 5.

    my exhaust is divorced and the passenger side was smoking and spitting out gasoline!!!

    wtf is happening?

    Bad coil or injector failed.

  5. #5
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    Click here to enlarge Originally Posted by E90SoFlo Click here to enlarge
    coil pack in cyl 5 is out. If not that check plugs

    steps to fix

    Change plug 5
    Change coil pack 5
    I was thinking maybe injectors since its spitting gas.... I have new plugs, so im gonna change them all in the am, and then swap coils to cylinder 5, which is the cylinder that is misfiring and throwing the SES light. Will update in the am.

    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    yup, or injector, same flowchart as always.. Mine did that.. justhappened to be the first time i let the mrs take it to wawa.. she was so scared i would flip for breaking my car..
    haha.. have new plugs, so im gonna change them all in the am, and then swap coils to cylinder 5, which is the cylinder that is misfiring and throwing the SES light. Will update in the am.

    Click here to enlarge Originally Posted by Itsbrokeagain Click here to enlarge
    Bad coil or injector failed.
    Damn, i knew it was coming.. have new plugs, so im gonna change them all in the am, and then swap coils to cylinder 5, which is the cylinder that is misfiring and throwing the SES light. Will update in the am.
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

  6. #6
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    UPDATE:

    So i swapped coil #5 with #1, put a new plug into #5, cleared the codes and started the car. SES came back on, and only code is misfire cylinder #5.

    So looks to def. be injector.. Gonna bring her to the dealer next week. Not sure if its safe to drive like this? Will bmw tow it for free? My dealer is like 5 miles away, car smokes and spits out gas like crazy!!
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

  7. #7
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    Click here to enlarge Originally Posted by 5soko Click here to enlarge
    Will bmw tow it for free?
    BMW towed my car for free from a much further distance.
    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale: http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Click here to enlarge Originally Posted by 5soko Click here to enlarge
    UPDATE:

    So i swapped coil #5 with #1, put a new plug into #5, cleared the codes and started the car. SES came back on, and only code is misfire cylinder #5.

    So looks to def. be injector.. Gonna bring her to the dealer next week. Not sure if its safe to drive like this? Will bmw tow it for free? My dealer is like 5 miles away, car smokes and spits out gas like crazy!!
    AAA or BMW tow assist both with do 5 miles for free. I would make sure you cleared the codes and try again just to make sure.

    And if it does misfire, make sure that its Cyl. 5 not Cyl. 1

    Goodluck!




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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    BMW towed my car for free from a much further distance.
    Click here to enlarge Originally Posted by E90SoFlo Click here to enlarge
    AAA or BMW tow assist both with do 5 miles for free. I would make sure you cleared the codes and try again just to make sure.

    And if it does misfire, make sure that its Cyl. 5 not Cyl. 1

    Goodluck!
    UPDATE:

    Thanks alot guys.. Called BMW assist, and they towed it free of charge, gave the guy a tip too did a nice clean job, took care of my car.

    BMW called me, there changing 3 injectors, guessing all 3 in that bank, 4,5,6..Didnt say if they changed the plugs or anything else.

    They did say they changed the oil aswell because the gas and oil mixed??
    Guessing because the injector #5 was stuck open spitting gas into the cylinder.. Gas was coming out the exhaust. I wonder if i should be concerned about this?
    Ran the car in total for about 2 minutes total since the injector went.
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

  10. #10
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    Last Update to this problem:


    Got my car back today..
    #5 injector failed
    Replaced all bank 2 injectors, 4,5,6
    I installed all my new plugs aswell.
    And they performed a oil change aswell.

    Car starts up GREAT!! and coldstarts nicely so far. Feels really nice.

    BMW assist towed it for free and all. One full day in the shop as they wanted to cold start it in the AM.
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

  11. #11
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    Thats great to hear

  12. #12
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    Good for you. Those damn injectors...

  13. #13
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    That's crazy. Gas spitting out?!

  14. #14
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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    Thats great to hear
    thanks buddy!

    Click here to enlarge Originally Posted by piele_bps Click here to enlarge
    Good for you. Those damn injectors...
    Thanks man.. Yea annoying! thank god i was home in the garage, morning starting her. If i was anywhere else i woulda been stuck in the water.

    Click here to enlarge Originally Posted by E90Company Click here to enlarge
    That's crazy. Gas spitting out?!
    Yup! looks like the injector failed and was just stuck open, flowing gas.. and of course so much so that it was coming out the exhaust. My exhaust is 100% divorced, except for muffler birdge, so as you can see the wet spots on the floor, was the gas spitting out, by my garage out the passenger side exhaust. ( which is the bank 2, 4,5,6 injectors, 5 being the failed one)


    Click here to enlarge

    Crazy how these lil things fail on these cars and leave you stranded. My dealer said they seen this plenty of times, my specific case!
    ///M5 LCI
    "It's like the F10 is the 911 Turbo to the E60's GT3" -Pistonheads (M5 feature)

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