Transmission Sensor Problems of Mercedes Benz C230

The Mercedes Benz C230 with 69,000 miles has after coming to a stop - I would place foot on accelerator and the vehicle would barely get moving would move slowly and would not shift out of low gear. It would barely move. On other occasions the vehicle would not go and the vehicle rpm's would rev beyond normal rpm's. This could happen also at any speed. I feel that this is a dangerous condition and the following parts have been defective and mercedes is controlling the use of these parts because they know that they have an unsafe design and can prove to be hazardous to drivers. . I went to have the vehicle repaired at a local very reputable third party dealer and Mercedes Benz would not sell the necessary repair parts to any non mercedes dealer. It is my opinion based on reading about this particular vehicle that the transmission speed sensors have a faulty design as well as the transmission valve body and the hydraulic control unit. I would suggest that this be investigated by the highway safety board and provide for a recall of these items and notify all owners of vehicles. Mercedes benz is aware that they build a unreliable and unsafe power train for this vehicle.

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The contact owns a 2007 Mercedes Benz C230. The contact stated that while at a traffic stop, there was an increase in engines rpms as the vehicle failed to accelerate. The vehicle was taken to an independent mechanic, who diagnosed that the transmission speed sensor was defective and needed to be reset. The manufacturer was made aware of the failure. The vehicle was not repaired. The VIN was not available. The failure mileage was 67,000 and the current mileage was 74,000.

My original complaint was on 08/16/2012 (number 10473170). . . . Again, the transmission gear indicator went blank. Car went into "limp home" mode. This time removing the key and restarting did not reset the module and I had the repair done. The repair on this was almost $2000! it was the transmission speed sensor which is part of the electrical conductor plate assembly. Prior to this incident, the dealership service rep admitted that they have many repairs with transmission control problems and encouraged me to buy an extended warranty! online there are many complaints regarding the 2006- 2007 C230's with the same problem. There is clearly a defect going on and I too would like a recall investigation through the NHTSA. Mb needs to admit this is a problem and recall all the vehicles with this defect.

It occurred on the freeway in stop-and-go traffic. The vehicle would not accelerate and the rpm ran high. The transmission gear indicator went blank. I had to pull over, turn the car off, let it sit, then when I restarted the vehicle, it was normal again. I had only 38,400 miles on the vehicle at the time of the failure! online there are many complaints regarding the 2006 2007 C230's with the same problem. An independent repair shop said it is perhaps the transmission speed sensor which is part of the electrical conductor plate assembly. When talking to the dealership about my vehicles camshaft sensor failure repair and possible balance shaft issues, 7 months prior to this incident, the service rep admitted that they have many repairs with transmission control problems and encouraged me to buy an extended warranty! here is a quote from an independent repair shop: "these units are failing so often that the dealer has restricted selling them even in their own shop. To order a part, the dealer must submit a request with computer scans and control unit log reports of the suspected failed vehicle's electronics. The factory then sends the parts they deem necessary for the repair (conductor plate assembly, or complete valve body). " there is clearly a defect going on and I too would like a recall investigation through the NHTSA. The repair on this is thousands of dollars!.

The contact owns a 2005 Mercedes Benz C230. The contact stated that while driving at various speeds, there was a sudden increase of engine rpms and the transmission shifted into neutral independently. Also, the contact mentioned that there was a different occasion when the failure occurred and immediately after the vehicle stalled without any warnings. The vehicle was taken to an independent mechanic. The technician diagnosed that the transmission sensor, gaskets and cam shaft needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 98,000 and the current mileage was 131,000.

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