[2011z435is]

Hi everyone. I bought a 328i w/ 60k miles on it a few months back as a daily driver (when I can't drive the z4) and can't help but think the automatic transmission can be pretty rough/forceful sometimes. It's not terrible, not sure if a non-car person would notice but are the auto trans just like this on these cars or could this be an early sign of transmission failure?

[N52UNED]

Have you tried the transmission reset yet? (adaptive automatic transmission reset / throttle body reset)

[2011z435is]

Originally Posted by N52UNED

Have you tried the transmission reset yet? (adaptive automatic transmission reset / throttle body reset)

No, I didn't know there was such as a thing as a automatic transmission reset until I just googled it after you mentioned it. that would be awesome if that was the issue.

thanks

[TemjinX2]

just to confirm your using oem transmission fluid right? Transmissions are picky with fluid.

[2011z435is]

Originally Posted by TemjinX2

just to confirm your using oem transmission fluid right? Transmissions are picky with fluid.

that I know of. I haven't changed it since owning it. I tried resetting the transmission as stated above and took it around the block and it seems better so far. Not sure if just placebo yet haha

[TemjinX2]

Originally Posted by 2011z435is

that I know of. I haven't changed it since owning it. I tried resetting the transmission as stated above and took it around the block and it seems better so far. Not sure if just placebo yet haha

cool..keep us update.

[CTinline-six]

I would definitely try doing a fluid and filter change on the transmission. The 328i has a GM transmission, and I'm sure a fluid change certainly wouldn't hurt it. It may help with the smoothness of shifting.

[2011z435is]

Originally Posted by CTinline-six

I would definitely try doing a fluid and filter change on the transmission. The 328i has a GM transmission, and I'm sure a fluid change certainly wouldn't hurt it. It may help with the smoothness of shifting.

When I first purchased the car that was top on my list of preventative maintenance but the shop I took it to recommended against it and so did the BMW dealership. I figured if two shops were turning down free money than maybe it really is a bad idea.

[tlow98]

Can you describe the issue a bit better?

Ex; downshifts while coming to a stop are forceful, light throttle upshifts seem harsh, behavior cold vs hot, etc..

[N52UNED]

Originally Posted by 2011z435is

No, I didn't know there was such as a thing as a automatic transmission reset until I just googled it after you mentioned it. that would be awesome if that was the issue.

thanks

Without knowing the specifics of the issue/characteristics ... my auto 328 was a garage queen most likely owned by "snowbird" retirees. It lagged off starts and shifting from 2 - 3 had a noticeable amount of lag, like that of a manual trans (but I do have a bit of a foot). After a long trip, and about 2k miles, the car seemed to wake up ... acceleration off starts was vastly improved and the shifting smoothed out a bit. Now I will state that I find the GM auto trans to have a noticeable amount of shift lag when shifting from 2 - 3 ... it's not as smooth as any auto trans I've owned previously ... it still has the "manual feeling lag" from 2 -3 but only when goosed, but definitely not as prominent as before the reset.