Originally Posted by Autolycus
Thanks for info and I'll check out the price & availability of a Gearbox filter kit at the main BMW agent here - then have the work done (under supervision), at my local garage. That's if the transmission fluid top-up doesn't fix my problem.
Odds are you have an A4S 310Z Automatic transmission. Also known as the GM 4L30E. Transmission filter ans gasket kits are available from BimmerSpecialist.com for less then $40.
Originally Posted by Manolito
The 1997 323 never came to our shores so I don't know what transmission it has, or whether it uses synthetic or conventional fluid.
On my '97 328 auto, I replace the fluid every 60k miles, and it shifts much nicer with a fresh oil change. Even with fresh fluid, however, this transmission tends to hesitate and then shift with a thud when it is cold, and smooth out when warm.
The kit for mine includes 2 gaskets, a filter, and 28 new pan bolts and costs $30 US if you buy Meistersatz brand on line or $180 from the dealer for BMW branded parts.
If yours uses synthetic fluid, you should be able to push that change interval to 100k miles. Good thing, synthetic tranny fluid is extremely expensive.
The 323i did make it to North America. Their available here in Canada at least. Check the bottom of the transmission pan. Look for a sticker on the bottom. Mine has a Green sticker. That sticker denotes what transmission fluid to use. My 328i has a GM 4L30E transmission and uses DexronIII. Castrol Dexron III is sufficent. Dont push 100,000k. All ATF is "synthetic". Keep it to 50,000 miles.