From theleft side top. Iam selling the car and while I've noticed it somewhat before a buyer noticed it today. Not loud and more pronounced at start up. Thoughts? Would Lucas help?
Thanks

 

Start with a Seafoam treatment - it can work wonders. If it's a tap because you are not getting full valve lubrication, Seafoam may break the blockage away. The 1.8T is known for oil sludge, and Seafoam will be your best friend.

 

here's a noob question.... How do you seafoam the engine?

 

Hit up the Search feature up top - type in "seafoam 1.8t" and you'll get about four trillion threads. Also, either on www.audiworld.com or www.audidiy.com there is a tech article for the 1.8T that shows step by step what to do.

 

So, I ran Seafoam through the engine. While it was in there the noise went away. After 70 miles I did an oil change & now the noise is back. I would think that with the oil so thin the noise would have been worse with Seafoam in the oil. Any insights???

 

bump

 

No.

 

I'll see what a qt of Lucas does for it tomorrow.

 

Tapping is caused by an exhaust leak like a crack in the header, also could be a worn belt or pulley.

 

Nothing.