What causes a gearbox fault in a Mercedes?
2200, 2201, 2767, 2768. A diagnostic check will show a gearbox fault relating to the transmission control module. Could be a speed sensor fault (this appears to be the most common) or a valve fault or a power supply fault to the valves.
What happens when the transmission range sensor fails?
In addition, if the transmission range sensor has completely failed, the PCM will not see any gear command input at all. This means that your vehicle will not be able to move at all. 2. Transmission goes into different gear than selected There could potentially be a mismatch between the gear selector lever and the sensor input signal.
What is the transmission parking lock fault message?
004F81 EGS : ratio monitoring , Clutch A . 00017C ACC : can message received with fault value . Message : display of transmission path from transmission control .
Where is the gear shift sensor on a car?
Another thing you may want to check is the gear shift sensor underneath the brake pedal. Many vehicles come equipped with a sensor button located underneath the brake pedal that must be engaged before the shifter can be used on the steering column or the console.
Can a bad gear position sensor cause transmission problems?
If the gear position sensor experiences failure that still allows the car to start, only one or two gears will likely be available for usage. You may also see warning lights appear on the dashboard, and the transmission may not drive in the range chosen by the driver. Although a dangerous situation, it’s quite unlikely.
What to do if you have a gearbox fault?
As long as you do not feel any performance or shifting issues you can drive the vehicle but we should get those fault codes read just in case. If the transmission is shifting normally I would recommend having the dealer check the fluid level and fill it before repairing the leak. Then reprogram the TCM.
004F81 EGS : ratio monitoring , Clutch A . 00017C ACC : can message received with fault value . Message : display of transmission path from transmission control .
Which is the best condition monitoring system for a gearbox?
Dedicated condition monitoring system with sensor bandwidth up to more than 10 kHz Effective for high-speed shaft, intermediate-speed shaft bearing, and gear surface damage modes: axial cracks, macropitting, scuffing, and so on Earlier detection than oil debris analysis, but challenging to detect damage to planetary stage bearings and gears