2006 Mercedes Benz ML350: stuck in gear or won't shift

Filed Sep 21, 2023 · Electrical, Transmission · VA

i encountered a major issue with the Mercedes ML350, while doing a 3 point turn in a busy suburban Toronto street.The electronic shift module left me stuck in Road way. Causing traffic back up and could not move vehicle.neither forward or reverse.tried pushing and different tactics to move vehicle off road. Had to call CAA-AAA. It was a caos situation,first tow truck could not load vehicle,all wheels were locked in drive and would not shift. Had to wait for special tow Have all four wheels lifted off onto dolly. Tow truck driver said it is a common problem.with MB,BMW and Audi.Vehicles towed to dealer sat at dealer. parts on back order and Not available for repair.Since was in Toronto away from Home. Had to source original equipment supplier to purchase part.Dealer and factory Mercedes could Not source part.back ordered.The dealer agreed to install the factory OEM part they could not source. My concern to all owners including myself in line traffic a basic traffic maneuver stuck in blocking traffic. Cannot moving vehicle jammed in gear that controlled by a shift module.no safe limp mode or emergency shift to neutral to move vehicle safely.

Filed Nov 16, 2017 · Transmission · 64,500 miles · CA

While driving at most any speed,transmission periodically goes into no gear or a single gear (low or a higher gear) and 'limp mode' without warning....sometimes a "check engine" light. Very scary especially in traffic on the freeway. Bought the vehicle earlier this year with 60,000 miles on it...I am 72 and wife is 71...she is afraid to drive it because of the uncertainty of the drive train. I finally took it to mercedes benz as the would not sell my my independent mechanic the parts to repair problem. Mercedes says that I need to have the 722.9 transmission valve body replaced at $3,000 period. I have read of a myriad of similar problems with other owners of cars with this type of transmission....even class action suits. I believe that this is a very dangerous condition that must be resolved and repaired by the manufacturer. I even called mercedes benz of north america and their representative said he knew of no problems with this model of transmission. I also read that they are not changing any parts....just reprogramming the transmission to not go into limp mode and not activating the check engine light.....how can I insure that my vehicle will be repaired correctly and be safe to drive?

Filed Feb 22, 2017 · Acceleration, Transmission · 8 miles · NJ

My car suddenly lost power in the highway, and didn't want to accelerate,causing car to high RPM rev,going into limp mode and not accelerate, almost causing my family and to have a serious accident.vehicle was diagnosed by a shop which stated my speed sensor conductor plate is defective...upon doing research, I have noticed that this is common dangerous issue on the 06 mercedes ml models..mercedes even has a class action suite against them due to this issue..

Filed Feb 1, 2017 · Acceleration, Transmission · 92,000 miles · CT

There is a systemic problem with the mercedes benz 7g tronic 722.9 transmission control module which causes the vehicle's transmission to, without notice, fail to shift out of 2nd gear which creates a serious safety hazard while driving including entering the freeway and attempting to merge into traffic. The issue is well documented on a number of website on the internet which includes support groups including one advocating and soliciting a class action suit in the state of ca. The federal safety agency needs to look into this manufacturer's defect so as to prevent serious injury including the loss of life. Mb USA is very much aware of the issue which requires the replacement of transmission control module (TCM). Adding insult to injury, mb restricts the sale of the TCM so that the repair can only be made at an authorized mb dealership adding to the consumer's cost to repair the vehicle. The estimate repair cost is $1,500 at the dealership. Cost estimates outside of the dealership, if the item was able to be purchased, is less than half that. I was nearly rear ended by a tractor trailer while entering I-91 in ct just last week when the vehicle unexpectedly went into what mb calls "limp mode" when the check engine light comes on and the vehicle speed is restricted to 30 MPH immediately. This near death experience was quite alarming. I contacted mb USA and they denied any knowledge that the problem was at all due to defective manufacturing. As an individual consumer we have no rights in this matter to eliminate this manufacturers safety defect while mb restricts and monopolizes the repair of a problem that they created. The failure of this part can happen at any time regardless of vehicle miles.

Filed Sep 21, 2010 · Suspension · 41,000 miles · FL

Tl*the contact owns a 2006 mercedes benz ml350. While the vehicle was parked she attempted to shift the vehicle into reverse but the gear shifter would only shift into drive or neutral. She attempted to shift the vehicle back into park but the vehicle would not shift into park and a message on the dashboard informed her that she could not shift the vehicle into park while it was in motion. After approximately 10 minutes the automatic braking system engaged and she was able to shift the vehicle into park. The vehicle was then shut off and towed to an authorized dealer where the computer system was reprogrammed and the wheel bearings were replaced. She was informed the failure within the wheel bearings resulted in the computer system thinking the vehicle was in motion. The failure recurred once more and the vehicle was towed to an authorized dealer where they were unable to diagnose the failure but the wheel bearings were again repaired. The failure and current mileages were 41,000. Updated 01/06/11 *bf updated 01/24/11