Dorman 604-822 HVAC Blend Door Actuator - Auxiliary, Left Main or Main

Dorman 604-822 HVAC Blend Door Actuator

Dorman 604-822 is an HVAC blend door actuator engineered to match the fit and function of the original unit on select Audi and Volkswagen applications. It uses a rotary switch activation type with a 5-pin male terminal layout for direct replacement in the specified HVAC positions.

Built with a plastic housing and supplied as an air door actuator, this part is designed for vehicles that need precise control of temperature, mode, or recirculation functions. Compatible applications include Audi A3, S3, RS3, TT, and Volkswagen Golf, Tiguan, Atlas, and e-Golf models across the listed years.

Key Features

• OE-style HVAC blend door actuator replacement for select Audi and Volkswagen vehicles
• Rotary activation type for controlled HVAC door movement
• 5-pin male terminal configuration for the specified factory connection
• Plastic construction for the original-style actuator housing
• Direct-fit replacement for main, left main, right main, and auxiliary positions where listed
• Part number 604-822 for easy identification and ordering

Detailed Product Description

Dorman 604-822 is a precision-engineered HVAC heater blend door actuator made to match the quality and performance of the original blend door actuator on specific vehicle years, makes, and models. It is used in HVAC systems that control air distribution, temperature blending, and recirculation functions. This part cross-references 5Q0907511A and APBDA0299 for the same application.

Fitment includes 2013-2018 Audi A3, 2015-2018 Audi S3, 2017-2018 Audi RS3, 2016-2018 Audi TT Quattro, 2014-2017 Volkswagen Golf, and 2017-2018 Volkswagen Tiguan, along with additional Audi and Volkswagen applications listed for the main, left main, right main, and auxiliary HVAC positions. The Dorman 604-822 designation is useful when matching the actuator to the factory HVAC configuration.

What This Part Helps Address

• Inconsistent cabin temperature control
• HVAC air not changing between vents, floor, or defrost
• Recirculation door movement problems
• Clicking or binding from a worn blend door actuator
• Loss of proper mode selection in the climate control system

Installation Notes and Tips

Verify the vehicle year, make, model, HVAC position, and factory notes before installation. This actuator is listed for specific configurations such as dual-zone temperature control, single-zone temperature control, mode, recirculation, and temperature functions, so matching the original application is important. Confirm the terminal style, pin count, and mounting location against the removed part before replacement.

For fitment reference, this part fits 2015-2018 Audi A3, main; 2015-2018 Audi S3, main; 2017-2018 Audi RS3, main; 2016-2018 Audi TT Quattro, main; 2014-2017 Volkswagen Golf, main; and 2017-2018 Volkswagen Tiguan, main, among the other listed applications.

Quality Assurance

Dorman manufactures this HVAC blend door actuator as a direct replacement component for specific OE applications, with engineering focused on matching original fit and performance requirements. Part number 604-822 is built to support accurate HVAC door control in the listed Audi and Volkswagen vehicles.