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  1. #1
    Chris
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    145K miles - Failsafe Program Issues

    I have a '02 M5 with 145K miles. About a month ago I started to feel the car hesitating during acceleration. At one point it felt as if the car was going to stall. Then it went into "Failsafe" mode and was smoother. But, I notice the power is reduced.

    Since then this has happened 3-4 more times and seems even more frequent...the car starts out in normal mode but enters "Failsafe" after 30 to 40 minutes of driving.

    What is the likely fix? I have had normal maint. up to about 120K miles, but have just had oil changes and such since.

    Would changings spark plugs and fuel filter fix this?

    Open to hear possible causes.

    Thanks

  2. #2
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    Re: 145K miles - Failsafe Program Issues

    Does it happen in lower gears only and is the "Sport" button on ?

  3. #3
    Chris
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    Re: 145K miles - Failsafe Program Issues

    Well....Yes, I do usually have the "Sport" button on most times, so yes.

    And it is most noticeable in lower gears, but a few times it has supttered around even at highway speeds 60+ mph.

    That help?

  4. #4
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    Re: 145K miles - Failsafe Program Issues

    Chris I would suggest you find a long straight piece of road and after checking for safety and of course the omnipresent law take the Baby out for a damn good thrashing. I have similar problems to you , although no trans failsafe message ( yours is a manual I assume as they all are here in Australia ) and find that this is a good remedy. This piece of crude remedy was advised to me by an Austrian BMW Master mechanic. I know it has worked for a mate of mines 911 as well as a Z3 . It's important if you drive your M5 mainly in city conditions ( as most of us do ). Because I live almost in the dead centre of Australia ( Mount Isa in Northwest Queensland ) I have a favourite piece of road that I access when required .( you are welcome to use it if you wish ! LOL ) Let me know how you go...I find I need to "clear her out " every three months or so. Otherwise I would be thinking clutch problems ( manual) and/or accelerator module malfunction ( does the EML light come on in conjuntion with the Failsafe Trans message ? GOOD LUCK MATE...........Ken

  5. #5
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    Re: 145K miles - Failsafe Program Issues

    Don't forget the fuel injector cleaner prior to your high speed romp ! Make sure the engine is warmed up before doing this ( of course ) and sorry i keep say "Trans Failsafe" as I have had that on my 850Ci.......but i know what you mean !

  6. #6
    Chris
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    Re: 145K miles - Failsafe Program Issues

    Thanks Kenny....

    I'll give that try, supose nothing to lose. However, I have a feeling I need some basic things done...spark plugs, fuel filter, etc.

    By the way, I love Australia! Been there twice. Sydney and Melbourne.

    Thanks for the tips!

    Chris

  7. #7
    Andrew
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    Re: 145K miles - Failsafe Program Issues

    I had the same problem in my 2000 m5 70k miles. It turned out to be my exhaust cam sensors. Now the car drives better than it ever has. The reason it is worse in sport mode is that it makes the cam more aggressive causing even more problems. So id check the intake and exhaust cam sensors.

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