Hey Nick. The first thing you need to do is check the tramsmission fluid level. The Bentley manual has this described well. It is not as simple as it is on an american car with a dipstick. I can't remember if yours has a dipstick. If it does, be glad. If the fluid is low, top it off. If it is at the proper level, then you have to inspect it to see if it is real burnt. If so, then your transmission is likely toast. Unfortunately, the auto tranny is not as strong as the engine.
Hope this helps.
Most problems are usually something simple !
Originally Posted by noego
It's Deja Poo - as in, I've heard this **** before.
Calypso Red 1992 525i with 225K miles
1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold