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Thread: BMW 750i 2008 Cylinder 8 misfires need help!!!!!!! please

  1. #1
    Join Date
    Dec 2017
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    toronto,on,canada
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    bmw750i

    Angry BMW 750i 2008 Cylinder 8 misfires need help!!!!!!! please

    N62 2008 BMW750i I have changed the coils and plugs checked injector spark to plugs fuel pressure all is good
    but still misfires when driving rpm goes over 1500 to 2500 after that its okay if i slowly and gradually accelarate
    no issues its fine no misfire what else could it be don't want to think about eccentric shaft big money there any
    other suggestions or advice thanks in advance.

  2. #2
    dworthy's Avatar
    dworthy is offline Wagon meister :) BMW Tech Expert
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    Welcome to the Forum!

    You must be using something to read the codes, what is it and please type the exact info from the code. Also are there any other codes? When you say "Changed Coil and plugs" was this with brand new items, or just moved from 1 bank to the other?
    Darin
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  3. #3
    Join Date
    Dec 2017
    Location
    toronto,on,canada
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    My Cars
    bmw750i

    Took the car to dealer came out there is problem with eccentric shaft on bank 2
    i was just wondering could it be the sensor there or anything else i can check just to diganoise
    this they replace two coils and plugs and 3.5 hours labour cost me 1300$ just wondering its 750i n62 2008 with 200000 km on is it worth repairing it there cost is 3500$ any help or suggection
    would be great if there is easy way of fix.

  4. #4
    Join Date
    Mar 2007
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    Laurel, MD
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    11
    My Cars
    2003 E39; 2007 E66
    I have a 2007 750Li, 145k miles and experiencing the exact same problem. SO frustrating, wish I could figure this out; tired of changing coils and injectors only for the problem to come back 300 miles later. Had the DME tested and updated; that cost $$$. Eff, why are these cars all experiencing the same problem but no one has a definitive answer to the root cause?

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