Question about 2005 Volkswagen Jetta
I HAVE A 2002 JETTA WITH A TRUMPET FOR AN AC UNIT IT A DEEP TRUMPET SOUND FOR ABOUT 5 SECONDS OR SO AND THEN STOPS FOR A FEW MINUTES BEFORE DOING IT AGAIN ANY CLUES PLEASE
SOURCE: 03 jetta heater
Sure sounds like a blend air door problem. The rotary temperature knob moves a cable that moves the blend air door. There is a bushing in the housing that likes to break and will either leave the door closed no heat or open heat when a/c is on. TSB 8506-01 covers this problem.
A/C - Can't Adjust Temperature Output Control
85 06 01
July 11, 2006
HVAC, Temperature Output Control Cannot Be Adjusted
Customer states cannot adjust temperature and/or A/C is not cold.
The blend door control lever moves freely, but the blend door does not operate.
A bushing that fits on the lever may have a broken tab/clip, -arrows-, as shown.
This tab/clip may cause the bushing to fall out of the fresh air housing which can result in the door becoming inoperative and result in undesired air temperature.
No production change required.
In the past the entire fresh air housing was replaced because the bushing was not available as a separate part. The bushing is now available as a separate part.
The bushing can be accessed from under the center console.
^ Remove the panels near the foot wells at the passenger side of the console, -arrows-, as shown.
See Repair Manual, Body-Interior, Repair Group 68 - Interior Equipment for removal procedure.
^ This will expose the location of the control lever, -arrow-, as shown.
^ Re-bolt a new bushing onto the lever, -arrow-, as shown.
^ Re-insert the bushing with lever onto the blend door until it is firmly secured in the housing.
A mirror can be used to aid in identifying the orientation of the blend door when re-securing the bushing in the fresh air housing, -arrow-, as shown.
^ Reinstall panels.
Hope you are good at working in tight spots and with mirrors. I just did this job 2 weeks ago. It took 1 hour and was really a pain in the B==t working upside down with a mirror through a 1 inch hole. Hope this helps and Good Luck Happy New year and thanks for using FixYa.
Posted on Jan 01, 2009
There is an under the hood fuse block where most fuses are located. There should be a diagram on the underside of the lid that explains what fuse is what. It also might be located on the drivers side of the dash in the door jam. German's like to use little pictures so look for something that resembles A/C and check if any of the fuses are blown.
Posted on Feb 20, 2009
Interestingly enough I just had the same problem and the solution was exactly as was posted. The fans kicking on and off had caused one of the fuses (located on top of the batery) to over heat and litterally burn in half. I removed the old burned debris, cleaned the connection and replaced both fuses. Walahhh.
Posted on Sep 11, 2009
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