Quote Originally Posted by DHall1 View Post
Well then...

Most Audi dealers take list price on parts and then mark it up another 25%.

If you price out EGTs or O2s you will spend in the 1000s for them.

The car will function with a failed EGT but not a O2. So if I were to go with one or the other I would do the O2s. Primary only

Price out the dealer for the parts then go to Genuineaudiparts.com for a quote.
Actually, I have a failed EGT and I'll be replacing it -- at my own expense (but cheaper because the engine is pulled for the covered work). Apparently, EGT's are not covered by the warranty, so I think that I will prophylactically replace the O2 sensor.

I've communicated everything else to the mechanic, so I think I'm covered. It was fun telling them to replace "the nipple" -- something I'm much happier to tell a mechanic than a doctor.