how can i repair my bmw 330d gearbox?

my 330d tiptronic gearbox is kapput for no reason known to man and bmw have quoted me £4000 to replace.its a 2001 51 reg tiptronic auto box and i need help and advice quickly as i cant now work.
mick smith, August 2007


done
Problems with these boxes is not very common. Is your gearbox SMG or steptronic SMG versions have paddles on steering wheel to change gear and is basically a manual gearbox with hydraulics to shift gear.Whats the fault symptoms?
Would suggest getting a 2nd opinion from local independant(BMW if poss) garage.
The diagnostics on the tiptronic box is very good when connected to the relevant hardware bmw-dis or the autologic systems used by some independants can tell if its electrical and/or mechanical. if electrical can be sorted fairly easily, if mechanical a good reputable autobox repairer MAY be able to repair cheaper than the price quoted. If new parts needed try specialist breakers yard?

IAN., September 2007
are you any good with the concept of planetary gears, fluid motion or torque converters with out starting on electronics if not you don't stand a hope in hell

rick, August 2007
link Click here to see other fixes for BMW.