tonyb635

A friend of mine has a 2007 530 and recently ran over something in the road. The object damaged one of the plastic covers under the car. When he removed it he noticed a fluid leak and decided to have the leak checked and repaired. It turned out to be a front seal in the tranny for $20.00 and the labor was another 525.00 with fluid/filter change and all. This got us talking about when should we change our tranny fluid. I know some trannies have life time fluid. We came across this pdf for changes and it looks to be 100.000 miles. Like I said, he has a 530 I have a 535 and I'm not sure if we have the same tranny or not. I would think we do, but just not sure. The pdf does not mention the 535.

KAF

Haha.................you will get a lot of different views on this.

Tranny is meant to be lifetime sealed..................but how long is a lifetime?

Some say change every, 50,000..........or 75,000............or 100,000.

Some say it has improved the changing.....some will say it wrecked the tranny.

have fun sorting out who you agree with. :-)

BMW535xia

no service interval whether auto or manual. lifetime lubricant for entire service life of trans. when repairs are made to trans or oli cooler use only approved lifetime lubricant. referenced from 5 series service manual 2004-2010, models 525i >>> 550i

Shlooky

I was experiencing alot of sputtering in 5th gear, BMW said the tranny is a sealed unit so I would have to buy a new tranny to fix the problem. Took the car to my local indy (Bimmersport), they said I was also leaking fluid, they said more of a slow leak over time, so I asked them to change the gasket and the fluids, when they called me they said they replaced the gasket, replaced the bolts, kept the same pan, and added 3 litres of fluid!! Since then my tranny has been great, with the odd slam once every two weeks. I can live with that and will have it inspected every year going forward just to be sure.