Mercedes 7G-Tronic - Seven Speed Automatic Gearbox Repair

Common Failure symptoms:

• Intermittently not changing gear

• Gearbox goes into limp mode

• Sticking in gear

• Not selecting gears

Common fault codes:

• 0717 – The Signal From Component Y3/8N1 (Turbine Speed Sensor, VGS) Is Not Available.

• 0718 – The Component Y3/8N1 (Turbine Speed Sensor, VGS) Is Defective.

• 2201 – The Component Y3/8N2 (Internal Speed Sensor) Is Defective.

• 0722 – Output Speed Sensor Y3/8N3 Output Speed Sensor VGS Not Available

• 0721 – The Transmission Output Speed Signal Is Implausible When Compared To The Wheel RPM Signal

Common failing part numbers:

• A0335457332

• A0034460310

• A0335456732

• A0009013000

• A0009013200

• A0009017100