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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 10-04-2012, 08:35 AM
capital10 capital10 is offline
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Location: Missouri
 
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Mein Auto: F10 535d
CPO and ext Maint almost expired (possible transmission issue)

My 07 750 is going to the dealership today for new rear brakes and new spark plugs.

My CPO expires in 4000 miles and I have been experiencing occasional rough shifts and hav noticed a few loud noises sometimes when I shift from park to drive an happen to have the door open.

Last time it was in they said it needed a software update which of course wouldn't be covered under the warranty.

I may just be over sensitive to these things because of the reputation of the transmission on these 7's

My question is what should I ask to dealership to do or check to ensure that the transmission isn't on it's way out. Like maybe change the transmission fluid or something like that.

Any help or input would be appreciated

Thanks
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  #2  
Old 10-04-2012, 08:56 AM
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dsaautocustomz dsaautocustomz is online now
Donny A
Location: michigan
 
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Mein Auto: 14 Sierra, 13 Denali XL
i didnt understand the part when you said you have the door open, i know that mines will shift back into park very rough if my door is open, is that what you are saying.
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  #3  
Old 10-04-2012, 09:30 AM
capital10 capital10 is offline
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For instance I'm in the driveway in park, I hop in to pull it into the garage and leave the door open when it shifts from park to drive it will on occasion make a very loud metal clang when it shifts, if I then go back into park and do it again it doesn't repeat
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  #4  
Old 10-04-2012, 09:30 AM
capital10 capital10 is offline
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Can transmission fluid need changing?
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  #5  
Old 10-04-2012, 09:34 AM
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1bad540 1bad540 is offline
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Mein Auto: E65 750i Sport,C5 z51 e46
depends on the miles, Is the driveway at a steep incline when u hear the clang??
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  #6  
Old 10-04-2012, 09:35 AM
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Donny A
Location: michigan
 
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Quote:
Originally Posted by capital10 View Post
For instance I'm in the driveway in park, I hop in to pull it into the garage and leave the door open when it shifts from park to drive it will on occasion make a very loud metal clang when it shifts, if I then go back into park and do it again it doesn't repeat
Then you have the same problem i had before i called the dealer and asked them they said its normal, its a safety thing. the car trys to stop it self from going any further from where it is with the door open. that noise you are getting is the transmission switching back to the parked gear when its not completely stopped, its basically grinding the gears.
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  #7  
Old 10-04-2012, 09:53 AM
capital10 capital10 is offline
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Mein Auto: F10 535d
I have 96k miles now, my driveway is a very slight incline not big enough for the car to rest on the gear.

Being that this is possibly the last trip to the dealer under CPO an maint plan I'm worried I might forget to have hen check something that could be fixed or replaced for free.

Any random things that you would have them check on your car if you were in the same situation as myself

Thanks
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  #8  
Old 10-04-2012, 10:04 AM
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1bad540 1bad540 is offline
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Mein Auto: E65 750i Sport,C5 z51 e46
Tell them the trans is banging and that its a concern. at least get it noted.
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  #9  
Old 10-04-2012, 10:45 AM
canuckdon canuckdon is offline
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Both my 7's did/do this. I think the root cause may be the torque converter. When things are working correctly, the tranny acts like its in neutral when shifting, so minimum clunk, and the car does not creep very much. Then sometimes, the tranny acts like your jamming it in gear without any clutch, so big clunk, and the car wants to creep forward. Not sure if I am explaining this very well, but this is the most annoying problem with the car. wish BMW would at least acknowledge this, and come up with a proper fix.
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  #10  
Old 10-04-2012, 10:58 AM
capital10 capital10 is offline
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So when the torque converter is going bad this happens, or it will happen no matter what and the torque converter could be fine?
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  #11  
Old 10-04-2012, 11:08 AM
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745iguy 745iguy is offline
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I've had this happen on every car i've ever owned when you shift out of park on an incline/decline to drive or reverse.
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  #12  
Old 10-04-2012, 02:39 PM
canuckdon canuckdon is offline
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Quote:
Originally Posted by capital10 View Post
So when the torque converter is going bad this happens, or it will happen no matter what and the torque converter could be fine?
I think the problem is in the programming, but enough harsh shifts and the tranny will wear out and fail at some point. My 03 developed a leak, and BMW said I should replace it for $10,000. I had the fluid topped up and it was fine for a while, but traded in the car fairly soon after that.
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