Thermostat M274.920 for Mercedes-Benz

OE-spec engine thermostat assembly for Mercedes-Benz vehicles with the M274.920 petrol turbo engine. Restores correct warm-up time and stable operating temperature, and protects against overheating and poor heater performance.

Key Features

• Precise Temperature Control: OE-matched opening temp and flow for stable engine and cabin heat.
• Integrated Housing and Seal: Direct bolt-on replacement to minimise leaks and comeback repairs.
• Correct Sensor/Actuator Logic: Communicates with the ECU for accurate warm-up and efficiency.
• Exact Fitment: Factory mounting points for a no-mod install.

Compatibility

Common Mercedes models using the M274.920: C-Class W205 (selected C200/C250), E-Class W213/late W212 (selected E200/E250), GLC X253 and C253 Coupe (GLC200/GLC250 where fitted). Markets and years vary — always match by VIN.

Note: Coolant, hoses, clamps, water pump, radiator, and extra sensors/hardware not included.

This is an aftermarket replacement part, not a genuine Mercedes-Benz product. Not affiliated with or endorsed by Mercedes-Benz Group AG.