2009 and later Volkswagen Jetta SportWagen models may exhibit a lack of heat with the mode selection set on “Vent,” but enough heat with the mode set to “Floor.”
2009 and later Volkswagen Jetta SportWagen models may exhibit a lack of heat with the mode selection set on “Vent,” but enough heat with the mode set to “Floor.”
Be sure to check the G191 left vent temperature sensor for proper readings. Use MVB 5 field 1 for the vent temperature sensor reading and field 2 for the floor temperature sensor. Move the heat selector to cold and see if the value change. The reading should be close to the outlet air temperature and will be displayed in Celsius. The G191 sensor is located in the far left vent tube and can be accessed through the SC fuse panel cover.
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
