Flywheel Damage - BMW M5 Forum and M6 Forums
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post #1 of 26 Old 18th May 2012, 01:20 AM Thread Starter
donniesd
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Flywheel Damage

After getting erros and scanning for codes. I got error
P0339: Crankshaft Position Sensor A Circuit Intermittent


Took it to the dealer and they replaced the sensor under warranty. After they took it for a test drive, got the same error and told me they needed to tear down the tranny.

As you can see from the pics. We dealer and i are at a loss for what happened. They said started and clutch is in tact and so is everything else. Just the flywheel is damaged. It is not missing any teeth. They state nothing came out when they took it apart. Car has had not work on it in the month i have owned it.

Warranty wont cover it they say it was caused by "outside influenced"
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Last edited by donniesd; 18th May 2012 at 01:24 AM.
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post #2 of 26 Old 18th May 2012, 01:46 AM
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damn, that's BS. sorry to hear that. You just got the car too. Was it certified pre-owned? because I am thinking that the previous owner may have messed with it before trading in, because no way that flywheel would cause that much mess without you knowing/hearing it.

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post #3 of 26 Old 18th May 2012, 03:54 AM
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That really sucks. Mine was recently replaced. There's a better quality flywheel out there other than the OEM one.
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post #4 of 26 Old 19th May 2012, 10:06 PM Thread Starter
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Quote:
Originally Posted by suprolla View Post
damn, that's BS. sorry to hear that. You just got the car too. Was it certified pre-owned? because I am thinking that the previous owner may have messed with it before trading in, because no way that flywheel would cause that much mess without you knowing/hearing it.
Yes,

But they are refusing to fix it.

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post #5 of 26 Old 19th May 2012, 10:20 PM
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Thats weird that they took apart the tranny. From what I hear from my SA when there's a transmission issue with the SMG they just replace the entire tranny instead of messing with it. It could be a dealership to dealership policy though. Good luck with solving that problem!

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post #6 of 26 Old 19th May 2012, 10:25 PM Thread Starter
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Quote:
Originally Posted by pnguyen View Post
Thats weird that they took apart the tranny.
After they replaced the sensor. It was damaged again.

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post #7 of 26 Old 27th May 2012, 08:43 AM Thread Starter
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post #8 of 26 Old 27th May 2012, 09:22 PM
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Hello donniesd,

That damage to the flywheel is really minor. If it's still time, tell them not to change it, it is more cosmetic than anything. Unless one of its theeth is broken or strongly bent, there will be no problem in using it. Mine has more damage than this, and I've been saying not to replace it, 25.000km since then and not a problem.
By the way, have you seen/inspected your clutch mechanism? Generally such internal damage is caused by one of the mecanism's rivets to break and mess inside between the housing, the flywheel and the sensor.
Have a check, because if it's so, your insurance should cover it all...
Cheers
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post #9 of 26 Old 28th May 2012, 06:09 AM
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So they tell you that they have no clue what happened but it had to be outside influence that caused the issue ... that just doesn't make sense because there should be evidence of something if they claim that its outside influence.

Sorry to hear that they made you pay for the repair.
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post #10 of 26 Old 4th June 2012, 01:34 AM Thread Starter
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Quote:
Originally Posted by Cool Cat View Post
Hello donniesd,

That damage to the flywheel is really minor. If it's still time, tell them not to change it, it is more cosmetic than anything. Unless one of its theeth is broken or strongly bent, there will be no problem in using it. Mine has more damage than this, and I've been saying not to replace it, 25.000km since then and not a problem.
By the way, have you seen/inspected your clutch mechanism? Generally such internal damage is caused by one of the mecanism's rivets to break and mess inside between the housing, the flywheel and the sensor.
Have a check, because if it's so, your insurance should cover it all...
Cheers
It has to be changed. After 5k rpm all the lights would come on and the sensor was damaged after each drive

Dealer said there was no rivets or anything else missing from the clutch or anything else. I dident notice, but i work in IT. not cars.

Quote:
Originally Posted by ldomek1 View Post
So they tell you that they have no clue what happened but it had to be outside influence that caused the issue ... that just doesn't make sense because there should be evidence of something if they claim that its outside influence.

Sorry to hear that they made you pay for the repair.
It would not be so bad if i just knew why it happened. But since the dealer and extended warranty want to deny fixing it i retained an attorney.

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