Searched and found a TT I had been seeking. 3.2 SLine with 16K miles! So shipped and delivered and guess what? Starts fine but idels rough and for a few miles. No light. No idea on coil replacement - service book shows the 15K maintenance at just 5K miles in 2005. So one clue might be this puppy was stored or used very little over the next 8 years.

Thinking coils or plugs?

Ideas wizards?