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Mercedes-Benz · Fuel System

Throttle body

The valve controlling how much air enters the engine — on modern cars an electric motor rather than a cable.

Also called throttle actuator, throttle valve.

How you know it is this

  • A limp mode with a throttle actuator fault
  • Erratic or hunting idle
  • Hesitation off the line, or a throttle that feels delayed
  • Heavy carbon build-up visible around the butterfly

Worth knowing before you buy

  • Cleaning often fixes it. Carbon around the butterfly is the most common cause and costs nothing but time.
  • Most need re-adaptation with a diagnostic tool after cleaning or replacing, or the idle stays wrong.
  • The motor and position sensors are inside and usually not separately available.

What we need to quote it. The engine code. 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.

Air filter housingIntake ductingMass airflow sensorThrottle bodyIntake manifoldManifold pressure sensorPurge valve and canister
Air intake — schematic, to show where the part sits. Arrangement is right; it is a diagram and not a fitment reference.

Rest of the injection and intake

All fuel system parts
Get in touch

Throttle body 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)