2007 750li "Transmission Fault"

Whats up bimmerfest. So I guess I posted to soon. I towed my car to Ronin Autowerks in Fullerton. Had the issue with my car shutting off and going to neutral. I changed the integrated supply module under the passenger micro filter. I guess it needed to get recoded. All fault codes have been removed. Ronin did a excellent job. The car is up and running again and I have no issues with my engine shutting down and going to neutral so far. Thank again.

BMW 745li

BMW 745Li

Installed integrated control module. Happened 1 more time and since been running like a champ. No issues!

Bmw

Recently purchased an 07 750li. After having the transmission pan/gasket and mech sleeve changed at the dealership, I am now experiencing DCS Malfunctions and Transmission Faults usually on the initial start of the day. They usually go away after the first drive of the day. The car even shut off on me while driving on a side street (luckily) and a transmission fault appeared. I brought it back to the dealership and they have diagnosed that the car needs a new Comfort Access Control Unit. They say the unit is malfunctioning causing a battery drain over night. Does this sound close to being accurate? Thanks

Originally Posted by djrick508

Recently purchased an 07 750li. After having the transmission pan/gasket and mech sleeve changed at the dealership, I am now experiencing DCS Malfunctions and Transmission Faults usually on the initial start of the day. They usually go away after the first drive of the day. The car even shut off on me while driving on a side street (luckily) and a transmission fault appeared. I brought it back to the dealership and they have diagnosed that the car needs a new Comfort Access Control Unit. They say the unit is malfunctioning causing a battery drain over night. Does this sound close to being accurate? Thanks

I realize this is an old post and the problem is probably fixed by now but depending on your year and model, I remember reading something about comfort access recall? Probably worth checking into it

Watup yall..i have a 02 745i stuck in limp mode any idea on how to get it out?

Originally Posted by ikob

you have to change the Integrated supply module....

Thank you Ikob!!!! Took my 07 750li to the dealership and told them i was getting trans failsafe faults and intermittent "no starts". On the dash cluster, my voltage would never exceed 11.6 with the car off and would fluctuate between 14.7-15.0 while running with no lights, radio or heater. I thought it was either my battery or alternator. They said my charging system checked out ok and i had no stored faults concerning the trans faults and they were unable to replicate the issue. I asked about the IVM and they said they didn't see anything suggesting it needed to be changed. I left the dealership and went to autozone to have my charging system re-checked. They said my battery was good, but the alternator failed the voltage regulator test twice and passed twice. The diodes passed all 4 times. They suggested I had a bad alt because it was fluctuating too much and running too high. I Then I took it to an indy where they also tested my charging system and said my battery was a little low but thought the faults were caused by an electrical issue. I asked to have the battery changed anyhow and now they just called saying they have narrowed my issue down to the intergrated supply module (IVM). While on the phone I was thinking, Ikob is the M.A.N.!!! crossing my fingers!

Just did mine last week, no problems since. It's great not having this problem anymore.

hi guys, please confirm that after replacing the integrated supply module, there is no need to reprogram anythin right? currently my car does not have any code but it does have the intermittent start problem. thank you all.

after reading other posts, it looks like a plug and play type of service.