I saw this message today out of no where. I just recently upgraded the exhaust on my 2004 3.0d. I dont think the exhaust upgrade can create any tranny problem to the car. Strange... Will see what BWM says when i take it into service in a few weeks.

The car has done close to 90,000ks and has never had the transmission fluid change coz dealership said u never need to change it. Better change tranny oil too i guess when im in in 3 weeks time.