How to remove and install an A/C Expansion Valve in air conditioning systems that convert refrigerant on Volkswagen Golf?

Air conditioning system converts hot high-pressure liquid refrigerant of the compressor to cold lower-pressure vapour at the evaporator, which cools the airflow to be delivered to the vents by a discontinuous change in pressure. Most cars have a detachable controlled orifice in one of the air conditioning pipes at the firewall, some also have an expansion valve that functions in the same manner. In order to take out the expansion valve, a licensed technician is required to empty the air conditioning system. After that, the heat shield fasteners and the heat shield may be taken off, and the refrigerant lines can be unconnected at the firewall where they are attached to the expansion valve. Once the valve has been fixed on with bolts, it is removable. The reverse applies to installation whereby all the O-rings are changed to new one.

Genuine Volkswagen Golf A/C Expansion Valve

Air Conditioning Expansion Valve

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5 A/C Expansion Valves found

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Volkswagen Golf Expansion Valve Part Number: 1K0-820-679
$83.29 MSRP: $116.65
You Save: $33.36 (29%)
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Product Specifications
- Other Name: Valve
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2010-2014 Volkswagen Golf | Base, TDI | 4 Cyl 2.0 L DIESEL, 5 Cyl 2.5 L GAS
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Volkswagen Golf Expansion Valve Part Number: 5Q0-820-679-E
$86.86 MSRP: $121.66
You Save: $34.80 (29%)
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Product Specifications
- Other Name: Valve
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2015 Volkswagen Golf | Launch Edition, S, SE, SEL, TDI S, TDI SE, TDI SEL | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL
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Volkswagen Golf Expansion Valve Part Number: 6N0-820-679-D
$101.34 MSRP: $141.93
You Save: $40.59 (29%)
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Product Specifications
- Other Name: Valve
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1996-2006, 1994 Volkswagen Golf | GL, GL TDI, GLS, GLS TDI, GTI, GTI 1.8T, GTI 20th Anniversary, GTI 337, GTI GLS, GTI GLX, GTI VR6, TDI, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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Volkswagen Golf Expansion Valve Part Number: 5Q0-816-679-B
$32.78 MSRP: $54.64
You Save: $21.86 (41%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve; Expansion Valve
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2015-2021 Volkswagen Golf | Base, Launch Edition, S, SE, SEL, TDI S, TDI SE, TDI SEL, TSi, Wolfsburg Edition | 4 Cyl 1.4 L GAS, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL
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Volkswagen Golf Expansion Valve Part Number: 191-820-679
$120.19 MSRP: $168.33
You Save: $48.14 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1985-1992 Volkswagen Golf | Base, GL, GT, GTI, GTI 16-Valve, GTI 8-Valve | 4 Cyl 1.6 L DIESEL, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS

Volkswagen Golf A/C Expansion Valve

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Volkswagen Golf A/C Expansion Valve Parts and Q&A

Expansion Valve
5Q0-816-679-B
Q: How to remove and install an A/C Expansion Valve in air conditioning systems that convert refrigerant on Volkswagen Golf?
A:
Air conditioning system converts hot high-pressure liquid refrigerant of the compressor to cold lower-pressure vapour at the evaporator, which cools the airflow to be delivered to the vents by a discontinuous change in pressure. Most cars have a detachable controlled orifice in one of the air conditioning pipes at the firewall, some also have an expansion valve that functions in the same manner. In order to take out the expansion valve, a licensed technician is required to empty the air conditioning system. After that, the heat shield fasteners and the heat shield may be taken off, and the refrigerant lines can be unconnected at the firewall where they are attached to the expansion valve. Once the valve has been fixed on with bolts, it is removable. The reverse applies to installation whereby all the O-rings are changed to new one.