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Mercedes-Benz · Engine

Boost pressure sensor

The sensor telling the engine how much pressure is in the inlet, so it can control the turbo.

Also called MAP sensor, charge pressure sensor.

How you know it is this

  • Over- or underboost codes
  • Limp mode with no mechanical fault found
  • Poor running that comes and goes

Worth knowing before you buy

  • Cheap, and worth ruling out before any turbo work.
  • Soot and oil mist coat the sensing element on diesels. Cleaning sometimes restores it.
  • A sensor reading wrongly makes the engine fight a turbo that is perfectly healthy.

What we need to quote it. The engine 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.

TurbochargerActuator and wastegateOil feed and returnCharge pipesIntercoolerBoost pressure sensor
Turbo and charge air — schematic, to show where the part sits. Arrangement is right; it is a diagram and not a fitment reference.

Rest of the forced induction

All engine parts
Get in touch

Boost pressure sensor 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)