diveleader

Billeul - Mines in with the dealer as we speak, hopefully they will ID and then solve the problem.

billeul

Make sure you mention SIB 64 14 06.

gwf545

I reported the same problem/noise twice. Most recently even cited the above SIB. They keep telling me it's normal. It's such a slight tapping, I am inclined to agree with them. I suspect that Valvetronic levers add a bit of noise and that is all it is. In any case I now have the noise well documented, so if it turns out to be something serious I can go after them to repair it since it was previously reported while still under warranty.

billeul

If it a light very regular tapping or ticking it probably is normal. If the ticking is irregular, varies in loudness while idling, it could be the AC compressor. The tech should be able to identify it as compressor noise using a noise detection tool (like a long thin screw driver without a handle.

diveleader

Mine has been to the dealers today - faulty compressor diagnosed. Will be replaced on the 12th April, along with a new CCC module and Progman update

gwf545

The noise I have is regular, so I agree that is probably a valve train noise. I suspect that the intermediate levers of the Valvetronic system are the source and that on some engines they are just louder than on others. However, it seems to me that a refined & expensive V8 ought to be a bit quieter than this. I'm done complaining unless it gets significantly worse.