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Steve
Steve, BMW Expert
Category: BMW
Satisfied Customers: 23690
Experience:  BMW Expert
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I am getting code p0735 incorrect 5th gear ratio. car wont

Customer Question

I am getting code p0735 incorrect 5th gear ratio. car wont stay in 5th gear long. transmission is only 15,000 miles old. can it be the filter? tps?
Submitted: 1 year ago.
Category: BMW
Expert:  Steve replied 1 year ago.
Hello and welcome,
My name is ***** ***** it will be my pleasure to assist you today.
I will provide an honest answer. I trust this will be appreciated. Please remember that a low rating PUNISHES me for being honest and that I receive nothing for my time until a positive rating is clicked.
unfortunately a code like this typically indicates internal wear / problem with 5th gear itself.
a tps cannot cause this. Very unlikely for the filter or fluid to cause a problem with a single gear
however, as P codes are vague at best and often misleading, I would strongly advise a proper diagnostic on a BMW specific scan tool which can read much more detailed info and suggest proper test plans for the stored codes.
Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.