Symptoms of a faulty 7G-Tronic sensor used in Mercedes-Benz 7G-Tronic transmissions can be as follows:
Difficulty recognizing gears: A defective sensor can cause the transmission to have difficulty recognizing the current gear.
Difficulty Starting: A faulty sensor can cause the vehicle to have difficulty starting because the transmission is not properly adjusting torque.
Irregular shifting: The sensor is responsible for shifting and a defect can lead to irregular shifting.
Dashboard Warning Lights: A faulty sensor can activate warning lights on the dashboard, such as the “Check Engine” light or other warning messages relating to the transmission system.
Limp Mode: In some cases, a faulty sensor can put the transmission into limp mode, limiting the vehicle's performance.
Noises or Vibrations: A faulty sensor may be noticeable through noises or vibrations while driving.
Possible error codes:
0717, 0718, 2204, 2205 - Y3/8n1
2767, 2768, 2200, 2201 - Y3/8n2
722, 0723 - Y3/8n3
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