do u know what this is

[b14ryk]

got oil changed today and found this on under tray when we took it off

 

[Audi Doodah]

Looks to be part of the air con compressor pulley

 

[DALE_AVANT]

Looks to be part of the air con compressor pulley

View attachment 16561

View attachment 16562

Nice spot! Isn't that the air-con clutch?? I hear they are a common failure

 

[stu_m]

they dont fail as such

the rubber buffers wear and they rattle

 

[Audi Doodah]

As Stu says, but the problem will be sourcing the bolt which has obviously fallen out.

 

[b14ryk]

do i need it did not know i had air con

 

[Audi Doodah]

Ha, if you didn't know it was there, will you still not miss it now that you do!?!?

You don't need it but it would cost about £100 for a new pulley if you did (plus sourcing a new bolt and maybe even a regas of the system). For reference, it's controlled by the ECON button on the air con panel. While the red light is on, you're in ECONomy mode. Press the button and, with a functional air con system, the light will go out and you'll have chilled air blowing through the cabin.