Originally Posted by rldzhao
I did not specify whether I wanted the fluid with FM booster. I believe that unless you complain about differential noises, BMW uses non FM booster fluid by default, at least that is what is specified in their repair documentation.
My DCT has stock SAF-XJ and does not make any noise. My 6MT did make noise, however.
The MB fluid is the typical SAF-XJ and does not have FM booster.
Can you please clarify this? Do you know if both with and without FM additive fluids acceptable in the car? I had mine swapped yesterday and they used with FM additive. After the bad news about their price ($55 per bottle - again with FM additive) I found this thread on my mobile at the shop. I referred them to the local MB parts dept who stock the fluid WITHOUT the FM additive for $21/bottle.