MAHLE 11-53-7-549-476 Engine Coolant Thermostat Assembly with Housing 97°C

The MAHLE 11-53-7-549-476 is a map-controlled engine coolant thermostat assembly designed for BMW N51, N52, N53, and N54 six-cylinder engines. This complete assembly includes the thermostat housing, gasket, and electronically-controlled thermostat, providing a direct OEM replacement solution for maintaining optimal engine operating temperature.

Key Features:

• 97-degree Celsius (206°F) opening temperature for precise engine temperature regulation
• Map-controlled design adjusts temperature levels based on driving conditions and engine load
• Complete assembly with heavy-duty plastic housing in OE style construction
• Includes integrated temperature sensor and hose fittings for direct fit installation
• Electronically controlled by the engine computer for optimal cooling performance
• Manufactured by MAHLE Behr to original equipment specifications

This thermostat assembly sits between the engine and radiator, blocking coolant flow until the engine reaches proper operating temperature. When functioning correctly, it prevents overcooling that can cause rich fuel mixture and poor efficiency, while also protecting against overheating that can reduce engine performance. The thermostat should be replaced during major cooling system service or when experiencing temperature regulation issues.

Replaces OEM Part Numbers: 11537536655, 11537544788, TM1497, TM-14-97