BMW E90/E92 M3: Changing Manual Transmission Fluid

 

 

The M3 manual transmission has a cooler that requires the BMW computer to cycle on/off to completely extract old fluid and take in new fluid. I plan to change it often enough that I can change it just like any other BMW 6 speed and not worry about the small amount of residual fluid in the cooler/pump and will be able to exclude the step I cannot perform with the computer. There is also a screen type fluid filter at the pump I plan to check every other change and clean or replace. The potential consumables that might need to be replaced for this fluid change are below, if checking the oil screen filter the gasket ring (part 13 in right diagram below) requires replacement according to TIS:

 

 

 

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TIS Torque Specs: TIS instructions below with torque specs-