112 203 03 75 Thermostat 87 °C for Mercedes Benz C-Class W203 C-Class CL203 S203 R170

🔧 1122030375 Thermostat | 87°C

Engineered for Mercedes-Benz W203, S203, CL203 & R170 platforms.
Restores proper engine operating temperature and prevents overheating.
Reference Part No: 112 203 03 75

1122030375 Thermostat 87°C for Mercedes Benz C-Class SLK W203 R170

🌡️ Mercedes-Benz Engine Thermostat (87°C)

Ensure precise engine temperature control with the COWIN OEM-Standard Thermostat. Specifically engineered for Mercedes-Benz C-Class (W203) and SLK (R170) platforms, this unit opens at 87°C to optimize coolant flow, prevent overheating, and improve fuel efficiency.

✅ Key Features & Benefits:

Precise Activation: Opens at exactly 87°C for ideal engine performance.
OEM Reference: Direct replacement for part number 112 203 03 75.
Solves Overheating: Fixes common issues like temperature spikes, slow warm-up, and heater inefficiency.
Durable Construction: High-quality copper wax element and stainless steel spring for long-term reliability.

🚗 Vehicle Compatibility:

Compatible with the following Mercedes-Benz chassis codes:

Model Series	Chassis Code	Body Style	Common Models
C-Class	W203	Sedan	2000 – 2007
C-Class	S203	T-Model (Wagon)	2001 – 2007
C-Class	CL203	Coupe	2001 – 2007
SLK-Class	R170	Roadster	1996 – 2004

⚙️ Technical Specifications:

Product Name: Thermostat
Opening Temperature: 87 °C
OEM Part Number: 112 203 03 75
Material: Aluminum Housing / Copper Wax Element
Quality: 100% Tested & Calibrated

🛠️ Installation Note:

Always replace the thermostat housing seal/gasket when installing. Properly bleed the cooling system to remove air locks after installation.

🏭 Why Choose COWIN Auto Parts?

COWIN (Gaoyun) specializes in European engine components. Our thermostats are calibrated to strict OEM standards to ensure your Mercedes-Benz engine runs at the correct temperature.