Audi A/C Compressor - Genuine Audi 4M0820803M

Product Information

The A/C compressor is responsible for providing the system pressure necessary to move refrigerant throughout the A/C system. Without adequate system pressure, the refrigerant will not adequately cool the air in your vehicle's cabin. An A/C system that is not blowing cold air or intermittently blowing cold air can be caused by an A/C compressor. Some simple checks that can be performed before condemning an A/C compressor are, verifying system refrigerant, verifying plausible values from all temperature and pressure sensors, and verifying command signals from the HVAC control unit.

• No A/C clutch engagement
• Variable displacement solenoid failure
• Noise on engagement
• Intermittent cooling

About Genuine Audi

The original parts used by Audi to build your car are available as replacement parts under the “Genuine Audi” brand. Manufactured under the direction of Audi, expect excellent quality and a premium price since these parts are available exclusively through the Audi Dealership network.

You may not realize this, but the parts that make up your Audi are not necessarily manufactured by Audi. No cause for concern, as Audi designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Audi for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine Audi parts box and find an OEM branded part inside, simply with the addition of an Audi logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.