Torque Converter Fault

[Nik]

Originally Posted by X5Sport

In my case it was a metal to metal rattle when stationery - broken parts in the TC rattling about. Best described as the sound metal plates make when shaken in a tin. Noises emanated from just behind the engine in the bell housing (exactly where the TC is). Also apparent once the car was warmed up, but not initially apparent on a very cold morning (mine failed on 21/Dec/2009) when it was started to be put on the recovery wagon. It could not be driven up the ramp of the flatbed and had to be winched on.

Also very jerky gearshifts in 1st thru 3rd (4th to 6th were fine) and tended to lock in third when slowing down meaning very hard braking required to hold the car stopped at traffic lights etc. Diesels having so much torque low down meant it just wanted to take off from a halt!! Not fun on icy roads!! 'Sport' mode was non-functional - or at least was ignored by the control system as was 'Manual mode''.

BMW Garage reported the transmission oil as brown/black and smelling burnt (caused by multiple clutches failing due to lack of gearbox hydraulic control pressure).

I see, thanks. I Just had my Tranny rebuilt, now on cold starts in the morning it seems that it can't read P. I have to put it to N, and then put it postion 1, 2. and then it shows P. I have some list to repair first, then I'll take it place I rebuild my tranny and show them TC as well. Thanks and sorry for late responses.

[taosx5]

I have talked with 5 different shops on this issue and just made an appt. for next week to possibly have it replaced. Obviously they will do a diagnostic first to make sure that it is not an electronic problem of clutch solenoid. I will keep you all posted. I cleared the trouble code a second time two weeks ago and have run a couple of tanks of gas in her and the code failure has not returned. Again I am not experiencing any symptoms whatsoever. Will keep you all posted.

[smwmustang]

I am having the same code P0741. I had it reset but it came back on today. I have a new transmission that has about 12,000 miles on it as well as a new transfer case and drive shaft with only about 3,000 miles on it.

Any idea if the TC would have been changed out at well as part of this repair. I bought it this way and since the parts were still newer and under warranty I felt good about buying the X.

I would also assume that it would not be low on transmission fluid or have a bad solenoid since it is all new.

Any help....and should the dealer be able to tell me if the TC was replaced?

Thanks,

Shawn