2007 Mercedes Benz ML350: sudden loss of power

5 of the 83 complaints about the 2007 Mercedes Benz ML350 describe sudden loss of power.

owner complaints: 5
of this car's complaints: 6%
recalls: 0

Is there a fix? 14 service bulletins cover this area of the car. See below

Sudden loss of power by model year

2009
1
2008
3
2007
5
2006
4
2004
2
2003
2

What owners say

Filed Jun 1, 2022 · Acceleration, Engine · TX

2007 Mercedes-Benz ML350 DEFECTIVE BALANCE SHAFT CAUSING PAUSE & STOP IN TRAFFIC This is a known defect and has been resolved previously in customers favor in class action and private lawsuits against Mercedes Benz USA. Mercedes refuses to take responsibility for a defective and unsafe build THAT PUTS EVERYONE IN THE PATH OF THIS CARS LIFE IN JEOPARDY. PLEASE FOR THE SAFETY OF THE PUBLIC WILL YOU FORCE THEM TO ISSUE A RECALL ON THE BALANCE SHAFT before I have to get an attorney! Balance Shaft - UNSAFE!! BALANCE SHAFT has made this a suicide/weapon on wheels. When driving the car will suddenly and with no notice lose power, slow down substantially or stop on its own and sometimes will not moved forward at all. This has happened in traffic and I was almost hit. THIS IS VERY UNSAFE COULD KILL ME OR ANYONE AROUND ME. Each time I have had to turn on emergency flashers, turn off the car and restart. I drove home with Emergency flashers on all the way. 2 mechanics, including dealer advise this is a known problem for my year and model. Mercedes knows this is defective workmanship & they putting lives at risk. Now I have NO TRANSPORTATION AS THIS CAR IS UNSAFE. I have been advised not to drive the car.

Filed May 22, 2021 · Steering · CA

Losing power steering pressure while driving the car: safety issue it appears Hard to steer the ML350

Filed Nov 7, 2016 · Engine, Steering · 107,000 miles · AZ

Serpentine belt system. While driving on road at the highway speed, one of the idler pulleys locked up due to the failed bearing, leading to damaging/braking serpentine belt. That LED to loss of steering (loss of power steering) and overheating the engine. Created a very danger situation and left my family stranded many miles away from home. Very costly towing service and repair.

Filed Oct 11, 2016 · Engine, Transmission · CA

Safety issues being observed on ml 350 2007 observations (my wife & I have both experienced): automatic transmission , experiencing limp mode creating a safety issues which cannot be foreseen, can happen any time the problem occurs when you least expect it and unpredictable, it will be driving fine and then all of a sudden it will start losing power in traffic & drag down. Also, the vehicle will start shifting by itself from one gear to another & the speed of the cars starts to crawl, like "limp mode" the idle speed starts to rev up, car is not increasing the speed as one would expect once normally when pressing on the gas pedal. One has to pull over if they can or stuck in the street one is driving which I experienced and tried to pull over & had issues. I basically had to turn the engine off in the middle of the road while driving and hoped the car would start back again, I had to repeat this several times as I experienced the drag down and gears going down. Very scary incidents with children & wife in the car when I was coming back from an occasion (I.e. Driving back home). Told by dealer on 10/11/16: code 0717 & 0718 & not covered under warranty 4 years/50k potentially related issue: code 064 incident had occured several times now in the last few weeks

Filed Sep 7, 2015 · Transmission · 80,000 miles · TX

We are having some serious issues with our mercedes benz ml350, 2007. The safety hazard concerns us deeply. Based upon our research, we have discovered that this is a common problem. Others are facing the same issues with this vehicle. This problem occurs when you least expect it. It will be driving fine and then all of a sudden, it will lose all power in the traffic where you are totally helpless and unable to pull over. This is very dangerous because the vehicle slows down unexpectedly which can cause a major accident. Example: when you are crossing a highway; you think the vehicle will drive normal. But then all of a sudden it drags. Therefore, you will have to crawl. Each time we have to restart the vehicle. It appears that the vehicle resets itself when the engine is turned off. Then the vehicle proceeds as normal. Another example: it won't shift from second gear to third, and you can only crawl 10-40 MPH. It refuses to shift any more. Other drivers around us on the road become extremely impatient and start screaming and using violent gestures. Another time, I was coming off a highway merging to the access road. The vehicle slowed down. I pressed on the gas, the engine revved up but the car slowed down to about 35mph and a 18 wheeler behind us almost hit us by swerving to avoid a major accident. I had to crawl on the access road with fast moving traffic. There are other reports with the 2007 mercedes benz ml350 power train (transmission) to have these issues. The reports I have read indicated that the mercedes benz corporation is not willing to own up to the fact that this vehicle is very dangerous and can cause serious implications. I plead for your help to please look into this matter so that others with the same problem with this car can be spared. We are appealing for your help.