
Engineered for Mercedes-Benz W203, W210, and CLK platforms.
Restores proper engine operating temperature and prevents overheating.
Reference Part No: 611 203 12 75
Maintain optimal engine temperature with the COWIN OEM-Standard Thermostat. Designed for Mercedes-Benz W203, W210, and CLK platforms, this unit features a 92°C opening temperature, ensuring precise coolant flow regulation to prevent overheating and improve fuel efficiency.
Compatible with the following Mercedes-Benz chassis codes:
| Model Series | Chassis Code | Body Style | Generation |
|---|---|---|---|
| C-Class | W203 / S203 | Sedan / T-Model (Wagon) | 2000 – 2007 |
| C-Class | CL203 | Coupe | 2001 – 2007 |
| E-Class | W210 / S210 | Sedan / T-Model (Wagon) | 1995 – 2002 |
| CLK-Class | C209 | Coupe | 2002 – 2009 |
We recommend replacing the thermostat housing seal/gasket simultaneously. Always bleed the cooling system properly after installation to remove air pockets and prevent localized overheating.
COWIN (Gaoyun) supplies precision engine management components for European vehicles. Our thermostats are rigorously tested to match OEM flow rates and opening temperatures, ensuring the safety of your Mercedes-Benz engine.
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