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Mercedes-Benz · Transmission & Drivetrain

Gearbox speed sensors

The sensors reading input and output shaft speed, so the control unit knows what the gearbox is actually doing.

How you know it is this

  • Limp mode with a speed sensor fault
  • Erratic shifting, or shifts at the wrong moment
  • A speedometer that drops out

Worth knowing before you buy

  • On many Mercedes boxes these are built into the conductor plate and are not separately available — that is why a sensor code so often means a conductor plate.
  • A sensor fault and a conductor plate fault read alike. The code alone does not settle which.
  • Cheap where they are separate; not cheap where they are not.

What we need to quote it. The gearbox code and the fault codes. The chassis number settles the generation, the body and usually the engine in seventeen characters — it is on your mulkiya. A photograph of the old part helps where there is more than one version.

Torque converterGearbox casingValve body and conductor plateElectrical connector sleevePan, filter and gasketSelector and module
Automatic gearbox — schematic, to show where the part sits. Arrangement is right; it is a diagram and not a fitment reference.

Rest of the automatic gearbox

All transmission & drivetrain parts
Get in touch

Gearbox speed sensors for your Mercedes-Benz?

Send the chassis number and a photograph of the old part. We come back with genuine, OEM and aftermarket options priced side by side, with lead times.

Mon–Sat, 8:00 AM – 6:00 PM · +971 54 303 3119 (Operations Director) · +971 54 241 0599 (Managing Director)