[Leevr]

Bare with me on this one. I'll do my best to explain my issue. On starting the car it starts as normal but there is an associated metal scraping noise. I relate it to something like a stone caught between a pulley and a thin metal plate. Unfortunately it's intermittent. It may not do it for days. To stop this noise i press the aircon button, this gives a loud vacuum switch sucking noise then alls good, with the red button illuminating as it should. If i start the car and there is no scraping noise and i press the aircon button, the red on light comes on as it should do with no noises at all. If I rev slightly when the scraping noise is there, I get strange crunching noises and what sound like a rubber belt scraping. I hope this garble has made sense to someone. And I'm not the only one it's happening to. I have a vid but it's too large to post.

Edited by Leevr, 11 September 2017 - 08:04 PM.

[Arkious]

I have the same problem mate and Audi are yet to figure out what the problem is. It doesn't seem to cause an actual issue other than a noise and luckily it does not seem to be metallic wear and seems to be gas/fluid. See the link below to the thread on ****-***** which has a video of my own. So far it has had a new air con pump which did nothing, but it seems to me that its a valve that's. Mine works perfectly fine other than the strange noise and its been in 4-5 times for the same issue. Due to the noise being inaudible outside the car its impossible to fault find.

 

www.****-*****.net/xf/threads/grinding-noise.272166/

 

apologies if I am not supposed to link external sites

Edited by Arkious, 19 September 2017 - 10:48 PM.

[Leevr]

I'm on the other site too mate. Been talking with you. Txv valve is the next port of call. Although Sutherland m power cars refuses to change it under warranty. He said it's completely normal. I beg to differ as only you and me out of dozens of other owners don't have this issue. Had the car three months and 1 of those months they've had it.

[Arkious]

haha sorry i confused you with the thread starter... im blaming this on nightshift...

 

its certainly not bluddy normal! how much is it to change out of curiosity?