Exhaust gas temperature sensor MERCEDES BENZ ML280 2008 OBSIDIAN BLACK

OEM: A0051537928

Disassembled car photo

Engine running

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What is this part and why does it matter?

The exhaust gas temperature sensor monitors exhaust temperature at various points, protecting components like the turbocharger and DPF from excessive heat and confirming proper regeneration temperatures.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Check Engine light with an exhaust temperature fault code
  • DPF regeneration cycles not completing correctly
  • Reduced engine power as a protective measure

Installation information

Screws into the exhaust system with a sealing washer — use anti-seize compound on the threads to prevent seizing for future replacement.

Donor vehicle description

VIN
WDC1641201A401610
Make, model
Mercedes Benz ML280
Year
2008
Engine
Desiel 3.0 140 kW 642.940 A6420108820
Transmission
7-speed Automatic 7G-TRONIC
Drive
Full
Equipment
LHD
Colour
OBSIDIAN BLACK 197U

358 parts from this car

  • Front right door control unit MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Headlamp angle correction sensor, front MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Driver's door switch buttons MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Headlight range adjustment sensor, rear MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Power window motor MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Rear left door lock MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Rear right door lock MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Power window motor MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Front left door control unit MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Interior ceiling handle MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Front right door handle MERCEDES BENZ ML280 2008 OBSIDIAN BLACK
  • Power window motor MERCEDES BENZ ML280 2008 OBSIDIAN BLACK

Frequently asked questions

If the ECU can’t verify exhaust temperature is within safe limits (due to a faulty sensor or genuinely excessive heat), it may reduce power as a protective measure to avoid damaging the turbo, catalytic converter, or DPF.

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