Four Seasons 37824 Engine Cooling Fan Temperature Switch

Engine Cooling Fan Temperature Switch for Audi and Volkswagen

Four Seasons 37824 is an engine cooling fan temperature switch built for radiator-mounted temperature control applications. It uses an oval male connector with 4 terminals and a clip-in, no-thread fitment for system mounting.

Compatible with select Audi A4, A4 Quattro, A6, A6 Quattro, RS6, and Volkswagen Passat models, this Four Seasons Temperature Switch line part is made to meet or exceed OEM requirements. Four Seasons 37824 is a direct-fit temperature switch for vehicles that rely on radiator-mounted fan control.

Key Features

• Brand: Four Seasons Temperature Switch
• Part number: 37824
• Engine cooling fan temperature switch for radiator mount applications
• Oval connector shape with male terminals
• 4-terminal electrical connection
• No threads / clip-in fitting style
• Meets or exceeds OEM specifications

Detailed Product Overview

The Four Seasons 37824 temperature switch monitors coolant temperature at the radiator and signals the cooling fan system when fan operation is needed. This type of switch is commonly used in Audi A4 and Audi A6 applications, as well as Volkswagen Passat models, where accurate temperature-based fan control is important for stable engine cooling. The Four Seasons 37824 is also cross-referenced to A14174 and SW1502 for the same application.

As part of the Four Seasons Temperature Switch product line, this component is focused on OE-style fit and electrical connection details that matter during replacement. The oval connector, 4-terminal layout, and clip-in mounting style help match the original radiator-mounted switch configuration on supported vehicles.

What This Part Helps Address

• Cooling fan not switching on at the correct temperature
• Cooling fan running at the wrong time
• Temperature switch electrical connection issues
• Radiator-mounted switch replacement needs
• Engine cooling control faults tied to the fan switch circuit

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. This part uses a no-threads, clip-in design for system mount applications, so the radiator switch opening and retaining method must match the original setup. Confirm vehicle application by year, make, and model before ordering.

• Fits 1998-2002 Audi A4, N/A
• Fits 1998-2002 Audi A4 Quattro, N/A
• Fits 1998-2004 Audi A6, N/A
• Fits 1998-2004 Audi A6 Quattro, N/A
• Fits 2003-2004 Audi RS6, N/A
• Fits 1998-2005 Volkswagen Passat, N/A

Quality Assurance

Four Seasons 37824 is listed as meeting or exceeding OEM requirements for the specified applications. Use the confirmed fitment details above to match this temperature switch to the correct Audi or Volkswagen cooling system configuration.