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AC compressor makes clip clip noises... Like a horse?



  Ftype SVR & E46 M3
Hi there

So took the car to Birchdown to have the trotting noise investigated and some other jobs.

As soon as Andy heard the noise he was like you had a genuine belt fitted, I was like yes and he was yep some batches of belts they make the writing on them a bit to heavy and it causes this noise. He said it’s nothing to worry about but that he solves it by sanding the raised writing down, he did this and the noise is gone.

Car is in good health and they said it’s a good one, they did the other jobs I asked, Andy also checked the timing and it was a little out nothing to cause damage but it would of been a touch down on power so he also re-timed everything up. So the idle is fixed as well car is awesome.

But wanted to report back for others that the trotting noise is just the writing on the genuine belts, does not impact all but just some depending on the batch and cure is to sand writing down if it bothers you.
 

NBG182

ClioSport Club Member
  BG 182FF
Long story short, with moving house and redecorating the whole thing, the Clio ended up going off the road for nearly two years awaiting a timing belt. Didn't really look at CS during that time either.

Anyway I got the timing belt changed last weekend - all running well again.

I happened to stumble upon this thread while doing the timing job, so in light of what @Gibbo205 discovered I figured I might as well put on a new aux belt while I was there.

Fitted a new ContiTech belt this time (instead of Renault) and it only solved the bleddy thing didn't it! No more horse!

Inspected the smooth side of the Renault belt and it does have a subtle bump near where the writing is. Hadn't noticed that before as I'd only inspected the ribbed side!

Wild that little bump made it sound like a horse though. 😂

Cheers to Gibbo for reviving this thread. 👍

Screenshot_20240426-182255.jpg
 


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