Hi all and a Happy New Year. We have just changed the auto gearbox selector switch due to fault. When it was removed we lost some of the gear box fluid. I have checked with auto data for level plug, but found that it flowed out quite fast. With about 1ltre lost, I would have suspected it to need topping up. I have been intouch with BMW and they said it would have to come in to them to do it with diagnostics. From a gearbox specialist they said to run engine in park and then check level, with it running. This also found to just flow out fast. Has anyone done this before.

I think we have the procedure at work. If you give me a ring 0161 746 8067 if i can find it i will fax it to you. If i can not find it you can talk to the mechanic that did the one we did. We got the information of a mini mechanic.

Hi Ian thanks for faxing me the information yesterday. Just a bit of extra info I came across. If you remove the battery and tray, there is a filler plug there. we got the gear box to the correct temperature then removed the level plug and collected the fluid that came out with engine running in neutral until it almost stopped. We then added that amount back into gear box and the amount that we lost. Re ran the gear box up to temperature, moved it through the gears and.then drained out surplus until a steady flow (thickness of a pencil)came out and then refitted the plug. Carried out road test and then rechecked level again.Fixed