02 S6 Avant whining while heating
02-21-2013, 10:02 AM
#1
AudiWorld Super User
Thread Starter
02 S6 Avant whining while heating
I have searched and narrowed my problem, I think to one of two issues. I am hoping that you can further help me isolate this.
I have a high pitched whining when my 02 S6 Avant is on auto heating. The whining comes from the passenger side, right, foot well approximately or somewhere that side in the dash. It can be eliminated by lowering the fan speed manually. It also stops while turning the car both left and right.
I think that the issue is one of two things.
1. The blower motor behind the glove compartment
2. The secondary air injection pump
The noise is constant and is not impacted by the engine RPM's. It also continues while the car is stopped and the engine is running with heat turned on. I have not noticed the noise while AC has been cooling. Again, the noise does stop during turns, however, starts back up when the car resumes its straight course.
I have a high pitched whining when my 02 S6 Avant is on auto heating. The whining comes from the passenger side, right, foot well approximately or somewhere that side in the dash. It can be eliminated by lowering the fan speed manually. It also stops while turning the car both left and right.
I think that the issue is one of two things.
1. The blower motor behind the glove compartment
2. The secondary air injection pump
The noise is constant and is not impacted by the engine RPM's. It also continues while the car is stopped and the engine is running with heat turned on. I have not noticed the noise while AC has been cooling. Again, the noise does stop during turns, however, starts back up when the car resumes its straight course.
02-21-2013, 10:50 AM
#3
AudiWorld Super User
I have searched and narrowed my problem, I think to one of two issues. I am hoping that you can further help me isolate this.
I have a high pitched whining when my 02 S6 Avant is on auto heating. The whining comes from the passenger side, right, foot well approximately or somewhere that side in the dash. It can be eliminated by lowering the fan speed manually. It also stops while turning the car both left and right.
I think that the issue is one of two things.
1. The blower motor behind the glove compartment
2. The secondary air injection pump
The noise is constant and is not impacted by the engine RPM's. It also continues while the car is stopped and the engine is running with heat turned on. I have not noticed the noise while AC has been cooling. Again, the noise does stop during turns, however, starts back up when the car resumes its straight course.
I have a high pitched whining when my 02 S6 Avant is on auto heating. The whining comes from the passenger side, right, foot well approximately or somewhere that side in the dash. It can be eliminated by lowering the fan speed manually. It also stops while turning the car both left and right.
I think that the issue is one of two things.
1. The blower motor behind the glove compartment
2. The secondary air injection pump
The noise is constant and is not impacted by the engine RPM's. It also continues while the car is stopped and the engine is running with heat turned on. I have not noticed the noise while AC has been cooling. Again, the noise does stop during turns, however, starts back up when the car resumes its straight course.
Shut the entire ac system off when you hear the whine....if it stops the whine, it's the blower motor. Oh, yeah, you essentially did that by lowering the fan speed!
Removing the blower motor is hella easier than the SAI pump. You might even be able to rehab the blower motor (the whine is a worn or dry bearing).
02-21-2013, 10:50 AM
#4
AudiWorld Super User
Thread Starter
02-21-2013, 10:54 AM
#5
AudiWorld Super User
Thread Starter
Shut the entire ac system off when you hear the whine....if it stops the whine, it's the blower motor. Oh, yeah, you essentially did that by lowering the fan speed!
Removing the blower motor is hella easier than the SAI pump. You might even be able to rehab the blower motor (the whine is a worn or dry bearing).
Removing the blower motor is hella easier than the SAI pump. You might even be able to rehab the blower motor (the whine is a worn or dry bearing).
02-21-2013, 11:20 AM
#6
AudiWorld Super User
Take the glove compartment off, access the blower motor, remove, re-lube, and reinstall. No need to buy anything new.
There's a video on Youtube floating around about squeeky blower motor.
Found it:
There's a video on Youtube floating around about squeeky blower motor.
Found it:
02-21-2013, 11:40 AM
#7
AudiWorld Super User
Save your $$
Easy job to remove, clean and oil the motor.
Had the same issue on our 01 back in 07, 30 minutes and two beers later no noise and as of today my daughter has not mentioned a thing about it.
Had the same issue on our 01 back in 07, 30 minutes and two beers later no noise and as of today my daughter has not mentioned a thing about it.
Trending Topics
02-21-2013, 12:17 PM
#8
AudiWorld Super User
Thread Starter
Thanks for the pointers and video links. I pulled the glove box today and I'll pull the blower and re lube it this weekend. (I need to buy the T-25 and T-20 Torx)
02-21-2013, 12:25 PM
#9
AudiWorld Super User
02-21-2013, 12:35 PM
#10
AudiWorld Super User
Thread Starter
Here is the culprit. I have pulled the glove box (very easy) and I'll pull the blower when I purchase my Torx set and beer.
Squeak goes away when I tap the motor housing.
Squeak goes away when I tap the motor housing.