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Four Seasons 36040 A/C Compressor Cut-Out Relay
| Brand | Four Seasons 36040 |
|---|---|
| Amperage Rating | 70 |
| Bracket? | No |
| Color | neutral |
| Connector Gender | Male |
| Connector Shape | Other design |
| Description | Relays |
| Meets / Exceeds OEM? | Yes |
| Skirt? | No |
| Style | Standard Relay |
| Terminal Gender | Male |
| Terminal Quantity | 4 |
| Terminal Type | Blade |
| Type | Standard |
| Voltage | 12 |
| Product line | Rad Fan Controller |
| Fits | Audi and Volkswagen · 36 vehicles |
OE direct replacement. Standard relay built to meet or exceed OEM requirements.
12-volt relay. Blade terminals and a 4-pin layout for straightforward electrical connection.
Standard relay. A simple, dependable control component for HVAC relay applications.
Cross-references AMS Automotive 4786, AMS Automotive 6510 and Baldwin 20019 for the same application. See all 33.
Four Seasons Rad Fan Controller 36040 Overview
The Four Seasons 36040 is a standard 12-volt relay built for HVAC and cooling-system control applications. As part of the Four Seasons Rad Fan Controller line, it provides a direct-fit relay solution for select Audi and Volkswagen vehicles that use a 4-terminal blade-style relay.
Compatible With Audi A4, A4 Quattro, A6, A6 Quattro, Cabriolet, 200, 200 Quattro, 5000 Quattro, and Volkswagen Vanagon applications listed below, this relay meets or exceeds OEM requirements and is rated for 70 amps.
Key Features
- Four Seasons part number 36040
- 12-volt standard relay design
- 70 amp amperage rating
- 4 blade terminals with male connector and terminal ends
- Standard relay style with neutral color housing
- Meets or exceeds OEM specifications
- Part of the Four Seasons Rad Fan Controller product line
Detailed Product Description
The Four Seasons Rad Fan Controller line focuses on relay-based control components used in HVAC and cooling-system circuits. This 36040 relay is a standard type unit with a 4-terminal blade configuration, making it suitable for vehicles that require a relay-style electrical switch for A/C compressor cut-off or related fan-control functions. The 70 amp rating supports demanding electrical loads found in older Audi and Volkswagen systems.
This part cross-references Four Seasons 20298 and 20900 for the same application. It also cross-references Audi A4, Audi A6 Quattro, and Volkswagen Vanagon relay applications where the OE-style relay specification matches the listed fitment.
What This Relay Helps Address
- Intermittent A/C compressor cut-off relay operation
- Cooling fan relay electrical switching faults
- No-start or no-engagement conditions caused by relay failure
- HVAC circuit interruptions in relay-controlled systems
- Electrical load issues in 12-volt relay circuits
Installation Notes and Fitment
Fits 2008 Audi A6 Quattro, Relay. Fits 2002-2004 Audi A6, 50 Amp; Relay. Fits 2002-2004 Audi A6 Quattro, 50 Amp; Relay. Fits 1998-2002 Audi A4, 50 Amp; Relay. Fits 1999-2002 Audi A4 Quattro, 50 Amp; Relay. Fits 1994-1998 Audi Cabriolet, 50 Amp; Relay. Fits 1996-1997 Audi A4, Relay. Fits 1988-1991 Volkswagen Vanagon, A/C Blower Relay; Relay. Fits 1990-1991 Volkswagen Vanagon, Fits vehicles with air conditioning systems.; Relay. Fits 1989 Audi 200, 50 Amp; Relay. Fits 1989 Audi 200 Quattro, 50 Amp; Relay. Fits 1986-1988 Audi 5000 Quattro, Fits vehicles with air conditioning systems.; Rad Fan Controller. Fits 1986-1987 Volkswagen Vanagon, Relay.
Verify the terminal layout, connector shape, and relay position against the original unit before installation. This relay uses male blade terminals and a male connector design, so matching the OE configuration is important for proper electrical contact.
Quality Assurance
Four Seasons lists this relay as meeting or exceeding OEM requirements, which supports OE-style replacement for the specified Audi and Volkswagen applications. The 36040 part number is also used across multiple interchange references, helping confirm application matching during parts lookup.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Audi | A6 Quattro | AWD | — | — | N/A | Relay |
| 2004 | Audi | A6 | — | — | — | N/A | 50 Amp; Relay |
| 2004 | Audi | A6 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 2003 | Audi | A6 | — | — | — | N/A | 50 Amp; Relay |
| 2003 | Audi | A6 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 2002 | Audi | A4 | — | — | — | N/A | 50 Amp; Relay |
| 2002 | Audi | A4 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 2002 | Audi | A6 | — | — | — | N/A | 50 Amp; Relay |
| 2002 | Audi | A6 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 2001 | Audi | A4 | — | — | — | N/A | 50 Amp; Relay |
| 2001 | Audi | A4 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 2000 | Audi | A4 | — | — | — | N/A | 50 Amp; Relay |
| 2000 | Audi | A4 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 1999 | Audi | A4 | — | 1.8L | L4 | N/A | 50 Amp; Relay |
| 1999 | Audi | A4 Quattro | AWD | 1.8L | L4 | N/A | 50 Amp; Relay |
| 1998 | Audi | A4 | — | 1.8L | L4 | N/A | 50 Amp; Relay |
| 1998 | Audi | Cabriolet | — | — | — | N/A | 50 Amp; Relay |
| 1997 | Audi | A4 | — | — | — | N/A | Relay |
| 1997 | Audi | Cabriolet | — | — | — | N/A | 50 Amp; Relay |
| 1996 | Audi | A4 | — | — | — | N/A | Relay |
| 1996 | Audi | Cabriolet | — | — | — | N/A | 50 Amp; Relay |
| 1995 | Audi | Cabriolet | — | — | — | N/A | 50 Amp; Relay |
| 1994 | Audi | Cabriolet | — | — | — | N/A | 50 Amp; Relay |
| 1991 | Volkswagen | Vanagon | — | — | — | N/A | A/C Blower Relay; Relay |
| 1991 | Volkswagen | Vanagon | — | — | — | N/A | Fits vehicles with air conditioning systems.; Relay |
| 1990 | Volkswagen | Vanagon | — | — | — | N/A | A/C Blower Relay; Relay |
| 1990 | Volkswagen | Vanagon | — | — | — | N/A | Fits vehicles with air conditioning systems.; Relay |
| 1989 | Audi | 200 | — | — | — | N/A | 50 Amp; Relay |
| 1989 | Audi | 200 Quattro | AWD | — | — | N/A | 50 Amp; Relay |
| 1989 | Volkswagen | Vanagon | — | — | — | N/A | A/C Blower Relay; Relay |
| 1988 | Audi | 5000 Quattro | — | — | — | N/A | Fits vehicles with air conditioning systems.; Rad Fan Controller |
| 1988 | Volkswagen | Vanagon | — | — | — | N/A | A/C Blower Relay; Relay |
| 1987 | Audi | 5000 Quattro | — | — | — | N/A | Fits vehicles with air conditioning systems.; Rad Fan Controller |
| 1987 | Volkswagen | Vanagon | — | — | — | N/A | Relay |
| 1986 | Audi | 5000 Quattro | — | — | — | N/A | Fits vehicles with air conditioning systems.; Rad Fan Controller |
| 1986 | Volkswagen | Vanagon | — | — | — | N/A | Relay |
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