I have a 2017 SQ5 V6 petrol with 30k on the clock that has a chattering noise from the engine when at idle.If it was a 70's car I'd say tappets-do they have tappets these days?

It's only audible with the bonnet up and turning off the AC makes no difference.

It's still under an Audi used car warranty but I thought I'd try & pre-arm myself with some ideas before I go to them.

Can someone recommend an indi somewhere near Watford I could go to for advice pls?

Thanks David,

Is this engine running on a chain rather than a belt? 
Hope someone comes up with a recommendation for you. 
Kind regards,

Gareth. 

2 hours ago, Magnet said:

Thanks David,

Is this engine running on a chain rather than a belt? 
Hope someone comes up with a recommendation for you. 
Kind regards,

Gareth. 

Chain

 

Suspect then? 

19 hours ago, Magnet said:

Suspect then? 

There's https://www.vwdoctor.co.uk in Watford so will give them a bell in the morning.

In the end I took it to an Audi specialist in Harrow who said the rattle is normal for VAG petrols,it's the fuel injectors.

Seem like a professional outfit so will be going back there for services etc.

https://audivwsc.co.uk