Denso AC Compressor | 5Q0820803K

Audi A3, TT Quattro, A3 Quattro, S3
VW Golf, GTI, Golf R, Golf SportWagen, Golf Alltrack, Golf SportWagen AWD, Golf SportWagen FWD
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P/N: 5Q0820803K Denso OEM
Cross References:
  • 4711504
  • 5Q0820803F
  • 5Q0820803G
  • DCP32060

The AC compressor is the heart of your vehicle’s climate control system. It functions by compressing gas refrigerant into liquid and dropping the refrigerant’s temperature below freezing. This liquid refrigerant is then pumped into the evaporator core inside the vehicle’s passenger compartment where the blower motor blows air through the evaporator to cool the air before flowing out of the AC vents.

If the AC compressor fails, refrigerant cannot be compressed and pumped through the AC system and your climate control system and not be able to cool the air coming from the AC vents.

Signs of a Faulty AC Compressor
Warm air coming from the AC vents when your climate control is set on cool or a grinding or whining noise coming from your engine when the AC is turned on are both signs that the AC compressor has failed.

Replacing Your Vehicle’s AC Compressor
The AC compressor only needs to be replaced if it fails and your vehicle should be inspected by a certified automotive technician before replacing the AC compressor to ensure the AC compressor is faulty. Since automotive refrigerant is invisible to the naked eye, refrigerant leaks are often misdiagnosed as AC compressor failures.

Due to extremely high pressures in the AC system, AC compressor replacement is not a DIY project. Only certified automotive technicians with the proper equipment are able to depressurize and evacuate your vehicle’s AC system before removing and replacing the AC compressor, and refilling your AC system with refrigerant. Replacing the AC evaporator, receiver drier, and expansion valve are recommended when replacing the AC compressor as a failed AC compressor often distributes small particulates throughout the AC system that clog the passages in these parts. It is also highly recommended to replace the AC receiver drier whenever the AC system is opened as the desiccant inside will absorb moisture in the air and not be able to absorb moisture in the AC system properly.

View more Denso AC Compressors.

Denso is a worldwide leader in the manufacture of advanced automotive technology, systems, and components. They are OEM (original equipment manufacturer) on numerous powertrain, climate control, electronics, safety, and telematics for many different car and truck manufacturers around the world. Its aftermarket division of filters, spark plugs, and wipers are also built to OE specifications to ensure proper fitment and function.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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Auto parts at wholesale prices is what you will find at AutohausAZ. Have you been searching the web for auto parts for your vehicle? You have come to the right place! Here at Autohaus, we strive to offer low prices on quality replacement parts and providing first rate customer service.

What This Denso AC Compressor Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

15-16 - A3 Premium, Premium Plus, Prestige, TDI Premium, TDI Premium Plus & more
15-16 - A3 Quattro Premium, Premium Plus, Prestige
15-17 - S3 Premium Plus, Prestige
16-17 - TT Quattro Base, S
15-17 - Golf Base, Launch Edition, S, SE, SEL & more
With Denso compressor.
17-17 - Golf Alltrack S, SE, SEL
15-18 - Golf R
19-19 - Golf R
Thru 7/7/2019.
15-17 - Golf SportWagen S, SE, SEL, TDI S, TDI SE & more
With Denso compressor.
17-17 - Golf SportWagen AWD S
With Denso compressor.
17-17 - Golf SportWagen FWD S
With Denso compressor.
15-17 - GTI Autobahn, S, SE, Sport
With Denso compressor.