Consumer Complaints


Fail datemilesoccurencesPurchase date
VEHICLE SPEED CONTROL
05/15/20121020001
 I purchased my car brand new, it was never previously owned and directly from a mercedes benz dealer. i started having problems with speed and gear shifting back in may 2012. when driving on the freeway normal speed (55mph) the car would begin to slow down no matter how much i pressed the accelerator the car would slow to a complete stop. i would have to attempt to pull over off the freeway, turn the car completely off, let it sit and then start it again and the car would run normal. when i get off the freeway or now even when i am driving on a back road going 35 mph the car would shake as i came to a stop sign or traffic light (as if i was driving a stick shift and didn't put the car in neutral or press the clutch) and then it would shut down completely. now i am having a third issue in addition to these issues where the car will shift gears on it's own and i'm driving in automatic mode not as a 5 speed. this is completely ridiculous for me to have transmission issue on a mercedes benz that i purchased new. i took it to a dealer who claims that i have to replace the entire transmission due to one small piece within the transmission system. i have checked online and have seen that hundreds of other benz owners are having the same problems with no resolution from the manufacturer. i am requesting an investigation and a recall. this is an extreme safety hazard that a car will completely shut down while on a freeway and there have been times when i have almost collided with other cars due to the immediate decline in speed. i have to always find a way to pull over to shut off the car. i purchased this car because of the quality that it should provide. please follow up with me regarding this issue i am extremely concerned that requests are being ignored by the manufacturer and no one is looking into this matter. *tr
05/15/2012102000
 I purchased my car brand new, it was never previously owned and directly from a mercedes benz dealer. i started having problems with speed and gear shifting back in may 2012. when driving on the freeway normal speed (55mph) the car would begin to slow down no matter how much i pressed the accelerator the car would slow to a complete stop. i would have to attempt to pull over off the freeway, turn the car completely off, let it sit and then start it again and the car would run normal. when i get off the freeway or now even when i am driving on a back road going 35 mph the car would shake as i came to a stop sign or traffic light (as if i was driving a stick shift and didn't put the car in neutral or press the clutch) and then it would shut down completely. now i am having a third issue in addition to these issues where the car will shift gears on it's own and i'm driving in automatic mode not as a 5 speed. this is completely ridiculous for me to have transmission issue on a mercedes benz that i purchased new. i took it to a dealer who claims that i have to replace the entire transmission due to one small piece within the transmission system. i have checked online and have seen that hundreds of other benz owners are having the same problems with no resolution from the manufacturer. i am requesting an investigation and a recall. this is an extreme safety hazard that a car will completely shut down while on a freeway and there have been times when i have almost collided with other cars due to the immediate decline in speed. i have to always find a way to pull over to shut off the car. i purchased this car because of the quality that it should provide. please follow up with me regarding this issue i am extremely concerned that requests are being ignored by the manufacturer and no one is looking into this matter.
09/16/2011500001
 I was on the highway and the car suddenly stopped accelerating and the rpm's ran way up and the car would not accelerate. i tried putting it in neutral then drive and nothing. i pulled over turned the car off for a few min. then back on. the car operated normally. the check engine light also came on and i had all the necessary service done on the car at that time. the car has done this increasingly for the last year and it is now becoming a hazard. the car has started jumping when put in drive and it is alarming. i cannot afford to replace the transmission and i feel mercedes should take responsibility for a defect in this model. i have children and this is my only car. i don't feel safe in it anymore and my children don't either. *tr
09/16/201150000
 I was on the highway and the car suddenly stopped accelerating and the rpm's ran way up and the car would not accelerate. i tried putting it in nuetral then drive and nothing. i pulled over turned the car off for a few min. then back on. the car operated normally. the check engine light also came on and i had all the necessary service done on the car at that time. the car has done this increasingingly for the last year and it is now becoming a hazzard. the car has started jumping when put in drive and it is alarming. i cannot afford to replace the transmission and i feel mercedes should take responsibility for a defect in this model. i have children and this is my only car. i don't feel safe in it anymore and my children don't either.
03/01/201159000
 I purchased my 2007 mercedes c230 in approximately february 2011 from carmax in roseville, ca. within six weeks, i was driving on a local freeway when i experienced a loss of acceleration power yet the engine was running a over 4000 rpm. i returned to the carmax dealership to report the engine problem, but the dealership could not recreate the problem, which repeated itself intermittently in the following months. in december 2011, i took the car to a local mercedes specialist for a service b; upon examination, the specialist advised me that the car had not received a 60,000 mile service b, including a transmission service, and asked if the car had exhibited the power loss and high rpm. the specialist informed me that a mercedes service bulletin advised of an incompatibility between the metal material of the transmission and the original factory fluid, which causes a shearing problem and build up on the transmission shifting sensors. the specialist recommended and performed a service of flushing & replacement of the transmission fluid with a newly formulated, mercedes recommended fluid. immediately following the service and fluid replacement, there were fewer incidents of power loss. in recent weeks, six months after the transmission service, the issue of power loss has re-occurred frequently, multiple times per week, multiple times per day, many times on the freeway at speeds of 55-65 mph, requiring me to pull to the shoulder of the freeway to turn off the car an allow to reset before re-entering the flow of traffic. this loss of power and transmission control while driving at freeway speed is a great safety concern to me.
06/15/201195000
 I bought the car june 2011 and since then, i have periodically had this problem. from a stop, the car will not accelerate. it feels like it is stuck in a higher gear. or, the opposite happens. i will accelerate, and the car will not change from second to third gear. i have to pull over and restart the engine, and then it works. i have seen numerous complaints online from other owners that they have the same problem.