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      04-24-2013, 04:38 PM   #7
R1robot
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Drives: 2003 Z4 2.5i
Join Date: Jan 2013
Location: Texas

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Yeah i agree with xmetal too but i bought this car with 100K miles so for all i know the previous owner did god knows what. E85 diff and trans is "lifetime" use as well as your 2005's and up.

I ran this by with my local tech and he says if anything goes bad first, it would be the clutch, then the transmission. It's possible if it's been neglected, oil particles harden up into sludge and thats what helps to keep the trans in working order (for now). Once cleaned, it would no longer grip and it renders the transmission useless. Typically its the clutch that goes bad, but he says its possible the transmission itself would go bad if it's been abused i.e. peeling out from a stop or stressing it excessively which i know nothing of its driving past. I was told to be cautious about replacing the trans fluid.

To be sure i won't be stranded, i'll just put some money aside for a transmission replacement in case it does happen to go bad.
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