"BMW" Transmission Fluid in GM 6L45R, '09 328i

[mhadden]

I was starting to have what felt like jerky/rough shifts in my Bimmer, so I read up on how to change the fluid (easier and less costly than a ZF-equipped unit!). When I dropped the pan, there was a [censored] of metal in the bottom of the pan and the magnet was pretty well coated. I also changed out the filter, but did not cut open the filter. There was still some red in the fluid, but was pretty dark which was to be expected. After changing the fluid, the shifts have been a bit smoother.

 

[Quattro Pete]

Thanks. Just to double check, was this the original factory fluid?

 

[MolaKule]

I would recommend another pan drop and refill or have what is there now sucked out for some fresh fluid, especially if this was original factory fill.

 

[mhadden]

This was the factory fluid. Around 100k I plan to do another drain and fill. I don't plan on changing the filter until the car has 200k.