Transmission slipping (clunks) in reverse - Bimmerfest - BMW Forums

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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 03-07-2005, 03:38 PM
aktam aktam is offline
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Location: SF
Join Date: Nov 2004
Posts: 16
Mein Auto: BMW 323
Unhappy Transmission slipping (clunks) in reverse

I have a 2000 323Ci with automatic steptronic transmission. It has 100K miles on it and I drive 90% freeway. I'm the first owner and drive very gently. Recently and intermittenly, I've noticed that when I put it in reverse, the transmission slips a little for 1-2 seconds, then clunks (the car jerks), then fully engages. All forward gears are fine. No warning lights from the dash. No transmission oil change has been done on the car since it's supposed to be a lifetime maintanence free tranny. Is this a sign of transmission going bad? Or is this something an transmission oil change may fix?

Anyone know if there's a DYI for an automatic transmission fluid change?

Any help is greatly appreciated. Thanks!
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Old 03-07-2005, 05:37 PM
rwebbe rwebbe is offline
Lead Foot
Location: Melbourne, FL
Join Date: Jan 2002
Posts: 442
Mein Auto: '02 330ci
If you are not a member of the BMW CCA please sign up/ Thry have a tech writer (Mike) who definitely says transmission oil should should be changed at 30K miles. My 330ci has a different tranny than yours and with 33K I am thinking of changing the oil. Just got to figure out who will do it. O am speaking of the Roundel Magazine.
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Old 03-08-2005, 02:23 PM
aktam aktam is offline
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Location: SF
Join Date: Nov 2004
Posts: 16
Mein Auto: BMW 323
Called 2 different BMW dealerships today and asked for pricing on ATF change. Both gals from service dept say that the automatic transmission that I have is a "Closed System" and they do not perform fluid change on them. She told me to bring in the car and test drive it with a tech to replicate the problem. I may just need to bring it in and hope I can reproduce the problem..., but on the other hand, I hope this problem doesn't occur everytime
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