Consumer Complaints


Fail datemilesoccurencesPurchase date
VEHICLE SPEED CONTROL
12/11/2012856451
 Suddenly during normal driving conditions, when trying to accelerate the car is very sluggish and the rpm are very high. this happens without warning increasing the potential for a crash. the problem is normally rectified temporarily by restarting the vehicle. *tr
12/11/201285645
 Suddenly during normal driving conditions, when trying to accelerate the car is very sluggish and the rpm are very high. this happens without warning increasing the potential for a crash. the problem is normally rectified temporarily by restarting the vehicle.
11/15/2011
 Periodically the car would lose acceleration and rpms would be high and the vehicle would jerk when i tried changing gears. as i change gears from park, reverse or drive, the gear shift jerks and i am unable to accelerate past 20 mph no matter how much pressure i place on the gas. : extreme loss of acceleration up hill and the steptronic (+/- shifting) did not work... (i could only go 35mph when every one else was going 70mph up hill) when i traveled on a flat surface with no inclination my car worked fine, i then decided to put it on neutral while traveling at 65mph...when i put it back in drive it did not pick up the gears it just continued as if it was in neautral. i had to pull over and shift it into park...as i shifted form d to neutral it shifted fine, but then from neutral to r the car jerked...from reverse to p it jerked again and shifted hard. i then shifted again to reverse, neutral, and drive thus the car jerked and did a hard shift with knocking noise and would not drive. i shifted to neutral again and shut the car off. when i turned it back on it shifted smooth and i drove off without any problem. took it to a repair shop and received p0717/p0718 fault codes and something about the valve body. i was also told that it was an transmission internal speed sensor issue. there is something faulty with the design and operation of this model year transmission and losing power and being able to only go 35 mph no matter how much you press the gas on the interstate or heavy fast moving traffic is extremely dangerous. mercedes benz is aware of this problem as many owners have complained but they will not institute a recall.
10/06/201177000
 The transmission internal speed sensor failed indicating that the valve body needs replacing. the gears are not shifting properly and get stuck. i have to pull over and turn the car off for about 10 minutes to let everything reset and then ok to drive. if i do not stop and turn car off and put it into park with engine still on and try to shift back into drive it is a hard shift and then the car will jerk. i saw on line all the complaints with the same problems for the c230 sport.
09/13/201133800
 I was driving my vehichle on the highway during morning rush hour when i noticed that the car would not accelerate over 35 mph. i moved the car off the highway and stopped at a red light. once i stopped the car it would not accelerate at all when i stepped on the gas. i had to put the car in park and then move it back to drive to get the car to move. the car would jump and luch forward when i shifted gears. i drove the car dircetly to the dealer. the mercedes dealer told me that there was a problem with the software and that the software would need to be updated. i went to pick up my car after the software was updated ($1,700 cost) and drove the car about 10 miles when i noticed that the check engine light had come on. i took the car back to the mercedes dealer to let them know the check engine light was now on. the mercedes dealer told me i have a defective balance shaft that needs to be repaired. the mercedes dealer ask me if i had kept up the oil changes on the car. i told the them that i had. the mercedes dealer told me that i have to pay $2,500 just for them to take the engine apart and that the total repair will cost around $6,000. i just purchased the car in july 2010 ( 14 months ownership) with about 19,500 miles on it.
10/06/201177000
 The transmission internal speed sensor failed indicating that the valve body needs replacing. the gears are not shifting properly and get stuck. i have to pull over and turn the car off for about 10 minutes to let everything reset and then ok to drive. if i do not stop and turn car off and put it into park with engine still on and try to shift back into drive it is a hard shift and then the car will jerk. i saw on line all the complaints with the same problems for the c230 sport.
09/13/201133800
 I was driving my vehichle on the highway during morning rush hour when i noticed that the car would not accelerate over 35 mph. i moved the car off the highway and stopped at a red light. once i stopped the car it would not accelerate at all when i stepped on the gas. i had to put the car in park and then move it back to drive to get the car to move. the car would jump and luch forward when i shifted gears. i drove the car dircetly to the dealer. the mercedes dealer told me that there was a problem with the software and that the software would need to be updated. i went to pick up my car after the software was updated ($1,700 cost) and drove the car about 10 miles when i noticed that the check engine light had come on. i took the car back to the mercedes dealer to let them know the check engine light was now on. the mercedes dealer told me i have a defective balance shaft that needs to be repaired. the mercedes dealer ask me if i had kept up the oil changes on the car. i told the them that i had. the mercedes dealer told me that i have to pay $2,500 just for them to take the engine apart and that the total repair will cost around $6,000. i just purchased the car in july 2010 ( 14 months ownership) with about 19,500 miles on it.
10/06/201177000
 The transmission internal speed sensor failed indicating that the valve body needs replacing. the gears are not shifting properly and get stuck. i have to pull over and turn the car off for about 10 minutes to let everything reset and then ok to drive. if i do not stop and turn car off and put it into park with engine still on and try to shift back into drive it is a hard shift and then the car will jerk. i saw on line all the complaints with the same problems for the c230 sport.
09/13/201133800
 I was driving my vehichle on the highway during morning rush hour when i noticed that the car would not accelerate over 35 mph. i moved the car off the highway and stopped at a red light. once i stopped the car it would not accelerate at all when i stepped on the gas. i had to put the car in park and then move it back to drive to get the car to move. the car would jump and luch forward when i shifted gears. i drove the car dircetly to the dealer. the mercedes dealer told me that there was a problem with the software and that the software would need to be updated. i went to pick up my car after the software was updated ($1,700 cost) and drove the car about 10 miles when i noticed that the check engine light had come on. i took the car back to the mercedes dealer to let them know the check engine light was now on. the mercedes dealer told me i have a defective balance shaft that needs to be repaired. the mercedes dealer ask me if i had kept up the oil changes on the car. i told the them that i had. the mercedes dealer told me that i have to pay $2,500 just for them to take the engine apart and that the total repair will cost around $6,000. i just purchased the car in july 2010 ( 14 months ownership) with about 19,500 miles on it.