VEMO V20-99-1261 Radiator Fan Temperature Switch for BMW - E38 E39

The VEMO V20-99-1261 is a radiator fan temperature switch designed to control the operation of the auxiliary cooling fan in BMW vehicles. This critical cooling system component monitors coolant temperature and signals the radiator fan to engage when the engine reaches a predetermined temperature threshold, helping to prevent overheating and maintain optimal engine performance.

Key Features:

• Direct replacement auxiliary fan switch for BMW E38 and E39 chassis vehicles
• Precision temperature sensing for reliable fan activation
• OE-quality construction ensures proper fit and function
• Compatible with 2.0L to 5.4L engines (1994-2004)
• Helps maintain proper engine operating temperature

This temperature switch mounts directly to the radiator or cooling system and is designed to meet or exceed original equipment specifications. When coolant temperature rises, the switch closes the electrical circuit to activate the auxiliary cooling fan, providing additional airflow through the radiator. VEMO is a quality aftermarket brand known for producing reliable electrical and sensor components for European vehicles.