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Lion Yard Trading
Mercedes-Benz · Transmission & Drivetrain

Gear selector module

The electronic module reading the selector position and telling the gearbox, on cars with no mechanical linkage.

Also called ISM, selector module, DIRECT SELECT.

How you know it is this

  • The car refusing to leave Park
  • The wrong gear shown on the dash
  • A selector fault message
  • The car going into neutral on its own

Worth knowing before you buy

  • Needs coding to the car.
  • Water ingress into the console is a common cause on cars where the module sits low.
  • Rule out the brake light switch first — the interlock uses it, and it is a fraction of the price.

What we need to quote it. The chassis number 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

Gear selector module 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)