Thermostat M270 for Mercedes-Benz

OE-spec engine thermostat assembly for Mercedes-Benz vehicles with the M270 inline-4 turbo petrol engine. Restores correct warm-up time and stable operating temperature, and helps protect 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: Works with the ECU for accurate warm-up and efficiency.
• Exact Fitment: Factory mounting points for a no-mod install.

Compatibility

Vehicles equipped with the M270 inline-4 turbo: A-Class W176 (A180/A200/A250), B-Class W246/W242 (B180/B200/B250), CLA-Class C117/X117 (CLA180/CLA200/CLA250), GLA-Class X156 (GLA200/GLA250). Longitudinal C-Class models typically use M274 — check your VIN to avoid mismatch.

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.