HomeHVAC > RelaysFour Seasons 36040 A/C Compressor Cut-Out Relay
Part #: 36040

Four Seasons 36040 A/C Compressor Cut-Out Relay

Rad Fan Controller
⚙️ 36 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Rad Fan Controller
🚗Fitment: Audi and Volkswagen, A6 Quattro, A6, A4, A4 Quattro, Cabriolet, Vanagon, 200, 200 Quattro, 5000, 5000 Quattro, and Transporter
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Reliable A/C Compressor Cut-Off Relay for Audi and Volkswagen

The Four Seasons Rad Fan Controller 36040 is a 12-volt A/C compressor cut-off relay designed for select Audi and Volkswagen models. Engineered to meet or exceed OEM specifications, this relay ensures proper operation of your vehicle's HVAC system by controlling the compressor cut-off function efficiently.

  • 12-volt standard relay with 70-amp amperage rating
  • Blade terminal type with 4 male terminals for secure connections
  • Neutral color and unique connector shape for easy identification
  • Compatible with Audi and Volkswagen models including A4, A6, 200 Quattro, and Vanagon
  • Meets or exceeds OEM quality standards for reliable performance

About the Four Seasons Rad Fan Controller Product Line

The Rad Fan Controller line by Four Seasons focuses on HVAC relays and components that regulate radiator fan and compressor functions. The 36040 relay is part of this product line, providing a standard relay solution that integrates seamlessly with your vehicle’s existing electrical system. This ensures consistent control of the A/C compressor cut-off, contributing to optimal HVAC system performance in Audi and Volkswagen vehicles.

Detailed Product Description

This A/C compressor cut-off relay operates at 12 volts and features a blade terminal type with four male terminals, designed for straightforward installation and reliable electrical connections. The relay carries a 70-amp amperage rating, suitable for handling the electrical load of the compressor cut-off function. Its neutral color and distinct connector shape help with proper identification during maintenance or replacement. The Four Seasons 36040 relay is compatible with various Audi and Volkswagen models, including the 200, 200 Quattro, 5000 Quattro, A4, A4 Quattro, A6, A6 Quattro, Cabriolet, and Vanagon, making it a versatile choice for these vehicles.

Common Applications and Issues Addressed

  • Prevents A/C compressor from running continuously, protecting the system
  • Resolves HVAC system failures related to compressor cut-off relay malfunction
  • Eliminates intermittent compressor engagement issues in Audi and Volkswagen models
  • Helps maintain proper electrical flow to the A/C compressor for efficient cooling
  • Supports radiator fan control integration in HVAC systems

Installation Notes and Tips

  • Ensure vehicle ignition is off before replacing the relay
  • Verify compatibility with your specific Audi or Volkswagen model and year
  • Check the relay terminals for corrosion or damage prior to installation
  • Use proper tools to disconnect and connect blade terminals securely
  • Consult vehicle service manual for relay location and wiring diagrams

Quality Assurance and Warranty

The Four Seasons Rad Fan Controller 36040 relay meets or exceeds OEM standards, ensuring dependable performance and durability. Manufactured to strict quality controls, this relay is designed to provide consistent operation within the HVAC system. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in material and workmanship.

BrandFour Seasons
Part Number36040
PositionRad Fan Controller
Amperage Rating70
Bracket?No
Colorneutral
Connector GenderMale
Connector ShapeOther design
DescriptionRelays
Meets / Exceeds OEM?Yes
Skirt?No
StyleStandard Relay
Terminal GenderMale
Terminal Quantity4
Terminal TypeBlade
TypeStandard
Voltage12

This part fits 36 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersPositionNotes
2008AudiA6 QuattroAWDN/ARelay
2004AudiA6N/A50 Amp; Relay
2004AudiA6 QuattroAWDN/A50 Amp; Relay
2003AudiA6N/A50 Amp; Relay
2003AudiA6 QuattroAWDN/A50 Amp; Relay
2002AudiA4N/A50 Amp; Relay
2002AudiA4 QuattroAWDN/A50 Amp; Relay
2002AudiA6N/A50 Amp; Relay
2002AudiA6 QuattroAWDN/A50 Amp; Relay
2001AudiA4N/A50 Amp; Relay
2001AudiA4 QuattroAWDN/A50 Amp; Relay
2000AudiA4N/A50 Amp; Relay
2000AudiA4 QuattroAWDN/A50 Amp; Relay
1999AudiA41.8LL4N/A50 Amp; Relay
1999AudiA4 QuattroAWD1.8LL4N/A50 Amp; Relay
1998AudiA41.8LL4N/A50 Amp; Relay
1998AudiCabrioletN/A50 Amp; Relay
1997AudiA4N/ARelay
1997AudiCabrioletN/A50 Amp; Relay
1996AudiA4N/ARelay
1996AudiCabrioletN/A50 Amp; Relay
1995AudiCabrioletN/A50 Amp; Relay
1994AudiCabrioletN/A50 Amp; Relay
1991VolkswagenVanagonN/AA/C Blower Relay; Relay
1991VolkswagenVanagonN/AFits vehicles with air conditioning systems.; Relay
1990VolkswagenVanagonN/AA/C Blower Relay; Relay
1990VolkswagenVanagonN/AFits vehicles with air conditioning systems.; Relay
1989Audi200N/A50 Amp; Relay
1989Audi200 QuattroAWDN/A50 Amp; Relay
1989VolkswagenVanagonN/AA/C Blower Relay; Relay
1988Audi5000 QuattroN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1988VolkswagenVanagonN/AA/C Blower Relay; Relay
1987Audi5000 QuattroN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1987VolkswagenVanagonN/ARelay
1986Audi5000 QuattroN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1986VolkswagenVanagonN/ARelay

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

014852101113578611136040155095115509811711726191893351918946519193750319349194612001920298208783209002442813578636040408839443951253J47864H095125365107M0951253A8017278D09512538E0951253A78839AC8508D1VY19D592BHS281MT0955MT1389

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.