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Mercedes-Benz E350 Problems

Rough Shifting of Automatic Transmission on Mercedes-Benz E350

Problem Description and Possible Solution

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

(223 people reported this problem)

Mercedes-Benz E350 Vehicles With This Problem

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Average mileage: 70,287 (3,000–222,000)
10 model years affected: 2006, 2007, 2008, 2009, more2010, 2011, 2012, 2013, 2014, 2015
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Viewing 41-60 of 125 comments
I was having problems with ongoing "rough shifting transmission" for at least a year. Car was diagnosed several times at MB dealership within the last year without any mention of a transmission problem. My car was diagnosed two weeks ago again for "rough shifting"; so now I was told by MB that II the transmission is totally gone. Repair options at this point is a $6500 re manufactured transmission or a $10,000 rebuilt transmission with all MB parts. Currently weighing all my options for the best case scenario.
My 2012 e350 trans just died at 80K miles (started by having shifting problems and would simply not shift to greater than 3rd gear). $6K bill for rebuild. Dealer Service head, and separately local Benz repair shop told me that the 7 speed transmission has had a very high failure rate due to a design flaw that causes internal failure. Local shop has replaced 12 e 7 speed transmissions and dealer told me it was 'multiples of 10' from them and that MB will not give relief. Furthermore, they told me that MB has issued revisions to its service recommendations around this transmission so they are aware of the problem. I've checked the blogs and it appears that the failure is very common and costly. Was wondering if others have had this happen. Feels odd/infuriating that many have had to pay for something that should last >150Kmiles. I also own a e320 wagon I purchased new in 1999 with a 5 speed that has 180Kmiles on its original trans and have had no problem.
Shifting and engine/transmission braking at low speeds is excessive. Engine/transmission breaking at low speeds 20-30 MPH does not need brakes to stop. It feels like driving with brakes on until you get to about 40-50 MPH.
Same rough shifting issues, plus car will shift to 7th gear at 20 MPH, will not stay in a lower gear or hold a gear, even with manual intervention. Have taken the issue all the way through MBUSA, Field Engineers, Regional Managers, etc. Mercedes will not stand behind their faulty product. The car now has 10,000 miles (10 months later after 7 times in the shop). Many, many, owners have the same problem, which MB is fully aware of, yet they refuse to fix it or return the car.
Transmission fails to shift at times. Need to stop and restart engine to correct. Went to dealer and they did a computer check and updated the software, didn't find anything else wrong. Ran fine for about a month and it still happens but only at times.
E350 transmission will not shift up propoerly. Problem is intermitant. Evenutally does when no longer accelarating
Hardshift problem. Going uphill around 15 mph car gives sudden jerk and it happens around 20 mph and on level road around 30 mph.
Vehicle slipped while shifting gears requiring ignition to be turned off and restarted. Problem continued progressing
When accelerating and the low gears are shifting from 1st to 2nd and sometimes 2nd to 3rd, I feel a vibration. Also, notice it sometimes when the car downshifts.
My car has started sounding like a stick shift and has trouble accelerating it times. It does not shift smoothly at times.
Transmission fails to shift at times. Need to stop and restart engine to correct. Went to dealer and they want $7k to replace transmission.
rcedes-Benz E350 125000 mi, Visitor
When driving on the highway the car does not automatically shift into gear, it freezes. I have to pull over at the side of the road and turn off the car and restart it. I took it to a Mercedes dealership and they said they could not find anything wrong. This has occurred at least 6 times in the last year.