Keep cabin airflow headed to the right vents with the Four Seasons HVAC Mode Door Actuator 73742. This small electric actuator drives the HVAC mode doors that route air between the dash vents, floor outlets, and defrost, responding to your climate-control settings. It drops in as a direct-fit replacement across a wide range of Audi and Volkswagen models, including the 2006-2014 Volkswagen Jetta, 2006-2013 Audi A3 / A3 Quattro, 2008-2015 Audi TT / TT Quattro, 2009-2016 Volkswagen EOS, and 2017 Volkswagen Tiguan — see the Buyer's Guide tab for the full list of applications.
- Includes: lever arm, gear, cam gear hardware and linkage as applicable
- Internal components: quality internal motor, drive gears, electronics and connections
- OE-matched: built to OE fit and function
- Validated: tested for function, durability and longevity
Backed by over 50 years of Four Seasons mobile A/C experience, this hvac mode door actuator serves as the drive unit for the mode doors. Signs that a mode door actuator may need replacing include a clicking or tapping noise behind the dash, or air that stays stuck on one outlet and won't switch between vent, floor, and defrost. If a failed actuator is the cause, this unit replaces it — diagnose the fault before replacing.
Interchange: BDAA1456 · DA1680 · MT18977 · 1K0907511E · 1K1907511E
This part cross-references / interchanges with the following part numbers:
73742, BDAA1456, DA1680, MT18977, 1K0907511E, 1K1907511E
