Horrible sound, but the car is off...
01-26-2016, 05:21 AM
#11
Damn skippy!
Excessive current draw would be stopped by the appropriately sized fuse. If a run-on condition is occurring then most likely there is significant heat building up in the unit. I've seen plastic inside the unit melt.
Excessive current draw would be stopped by the appropriately sized fuse. If a run-on condition is occurring then most likely there is significant heat building up in the unit. I've seen plastic inside the unit melt.
01-26-2016, 05:45 AM
#12
AudiWorld Senior Member
Additionally, It could be the relay that is causing the hot plastic smell or possibly something else.
01-26-2016, 10:29 AM
#13
AudiWorld Super User
If suspension air compressor turns out to be fried BTW, be sure to change the relay at same time. Std. Audi service practice now.
BTW, as others are hinting, make sure it is not something else. No, not the parking brake motor noise if what you hear is clearly up front. But, real world first person example. Post my strut change car starts making noises up front I can hear faintly when driving. Oh #@#$, the suspension compressor was initial reaction hearing it for the first time when parking one day at Home Depot, frankly especially w/ all the air play it gets on this board. But it would go away by the time I got home so I could't be sure.
Finally I realized to check it with AC function on and off. Yep a change in sound pattern. Another oh @#$# moment when I figured maybe the major-impossible-to-get-to W12 AC compressor if it needed more than some refrigerant or oil. Nope, not that either though at time I figured I might get charge checked/serviced in due course. I next went to pull serp belt to get at water pump--which I had intended to change anyway--when I realized the AC compressor pulley had just moved laterally and went off angle. Long story short, the pulley itself failed, first apparently at the bearing. Set up some gawd awful screeching in its later throes. Inside is a rubber clutch buffer sort of thing to protect the compressor and also buffer the motor some from load cycling. Yes, once I popped hood I knew it was toward front of motor and not over by drivers fender with compressor. But, as I said, first time I heard a new noise, my first instinct was air suspension compressor. Even once I got to knowing it was in front of motor, I thought water pump. Nope, it was the AC compressor pulley just a few inches apart from it. All can share sort of similar bad noises as they head south, as can some other things on motor.
BTW, as others are hinting, make sure it is not something else. No, not the parking brake motor noise if what you hear is clearly up front. But, real world first person example. Post my strut change car starts making noises up front I can hear faintly when driving. Oh #@#$, the suspension compressor was initial reaction hearing it for the first time when parking one day at Home Depot, frankly especially w/ all the air play it gets on this board. But it would go away by the time I got home so I could't be sure.
Finally I realized to check it with AC function on and off. Yep a change in sound pattern. Another oh @#$# moment when I figured maybe the major-impossible-to-get-to W12 AC compressor if it needed more than some refrigerant or oil. Nope, not that either though at time I figured I might get charge checked/serviced in due course. I next went to pull serp belt to get at water pump--which I had intended to change anyway--when I realized the AC compressor pulley had just moved laterally and went off angle. Long story short, the pulley itself failed, first apparently at the bearing. Set up some gawd awful screeching in its later throes. Inside is a rubber clutch buffer sort of thing to protect the compressor and also buffer the motor some from load cycling. Yes, once I popped hood I knew it was toward front of motor and not over by drivers fender with compressor. But, as I said, first time I heard a new noise, my first instinct was air suspension compressor. Even once I got to knowing it was in front of motor, I thought water pump. Nope, it was the AC compressor pulley just a few inches apart from it. All can share sort of similar bad noises as they head south, as can some other things on motor.
Last edited by MP4.2+6.0; 01-26-2016 at 10:34 AM.
01-26-2016, 11:09 AM
#14
AudiWorld Member
Thread Starter
Join Date: Sep 2013
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Dealer hasn't got to the car yet, hope to know something tomorrow.
From what I've read if it is the Compressor should I expect around $2,500 parts & labor??
and are there any refurbished compressors recommended? If my plastics have melted, not sure the o-ring refurb kit would be sufficient
From what I've read if it is the Compressor should I expect around $2,500 parts & labor??
and are there any refurbished compressors recommended? If my plastics have melted, not sure the o-ring refurb kit would be sufficient
01-26-2016, 05:30 PM
#15
AudiWorld Super User
Depends on where you are located as dealer labor rates vary wildly: $105.00/hr to $180.00/hr.
In a lower labor rate area, figure $1600.00 for a dealer to do the job.
WABCO Reman Solutions has started remanufacturing these compressors. Primarily for GM and Mercedes. Not sure if they made it to the VW/Audi service parts network in North America.
In a lower labor rate area, figure $1600.00 for a dealer to do the job.
WABCO Reman Solutions has started remanufacturing these compressors. Primarily for GM and Mercedes. Not sure if they made it to the VW/Audi service parts network in North America.
01-26-2016, 09:03 PM
#18
AudiWorld Super User
01-27-2016, 07:09 AM
#19
AudiWorld Member
Thread Starter
Join Date: Sep 2013
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
We'll, the dealership has me swearing up a storm.
Their diagnosis is worn bushings... So apparently when the car is parked with engine off, the bushings suddenly start making noises on there own and spew fumes into the cabin.
Next time I'll just pay you guys the diagnosis fee, I get quicker and better results here in the forum.
Their diagnosis is worn bushings... So apparently when the car is parked with engine off, the bushings suddenly start making noises on there own and spew fumes into the cabin.
Next time I'll just pay you guys the diagnosis fee, I get quicker and better results here in the forum.
01-27-2016, 07:48 AM
#20
AudiWorld Member
