Took into dealer today, went for test drive with technician he heard the noise and told me its the CV gaitors being new making the noise and this should stop as the car wears in, I watched him put some lubricating spray on them, and the noise has now stopped.

Yes, exactly what i was saying. Is just the rubber. Mine is doing too and i thought it could be this. But in your place i will avoid putting spray or grease on their exterior. It could attack the rubber or it will collect dust and will damage in time.

Edited 19 February, 201412 yr by myself24483

Well, 10 years late, but I bought a 2009 Octavia, 89,000 miles, and it had a chuffing sound like you describe, but it would be doing it in a straight line as well. The brakes were worn, so it was new pads and brakes all round. That did not get rid of the noise. It was worse when going round a curve. I bought a kit of sensors to clip to the suspension on each corner to try and work out which wheel was the problem. Eventually guessed it might be the offside front bearing. Got that changed and it was ok for about 30,000 miles. Now the noise is coming back slowly. Most noticable at around 40 to 50 mph. So will have to work out where it’s coming from. The CV boots are old, but if it is CV boots, why doesn’t every VAG car do it? They all use CV boots. 

 

As for spraying the boots, there’s no problem doing that, a rubber or silicone lubricant wouldn’t damage them. I spray everything underneath with Lanoguard. If you haven’t come across it look up lanoguard.co.uk, it will save a lot of grief later if you keep cars for years.