Rough Shifting of Automatic Transmission on Mercedes-Benz C350

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.

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Average mileage: 66,728 (33,000–89,500)
6 model years affected: 2006, 2007, 2008, 2009, more2010, 2012
13 people reported this problem
4 people shared problem details
big bump feels like going over a speed bump at 30 mph not sure if from the trans or rear end it lunged me forward when it happened
When first starting out driving car shift jerk after 15MPH then jerks again when I start to slow down around the 15mph speed. I have a automatic so I guess it jerks coming out of 1st gear going to 2nd and downshifting out of 2nd to 1st before car comes to a complete stop
Rough shifting of the automatic transmission from 3rd down to second and second down to first. Also from 1st up to 2nd and 2nd up to 3rd.
clunking gear shift 1st to 2nd
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