2PUTT

it seems to happen when the car is left in the garage for 2 days. i turn the key to start it up to 2 times with nothing. the third time normally makes it start. everything after that seems normal. it only really happens when it sits for at least 2 days.

Battery?

or

Brake Switch?

littleredwagen

had a similar issue with our first C6 A6, it was the starter turned the key and all electronics worked but no engine start

S4iowa

But sounds like the starter is on it's way out also.

Visti

I'm not sure if there is a difference between the clutch relay switch and the starter switch. But other than that I am thinking I may have to replace the starter...

2PUTT

then try it on Monday.

20vqtro

Actually after it didn't start a few times I would get an electrical burning smell in the car.
took it to the dealer they replaced the starter motor free of charge. I think it has something to do with the electrical surge to the starter motor. Too much current perhaps?

cyclezib

just had the identical, intermittent issue with our 2004 S4. Problem manifested itself only upon the first attempt to start the car in the morning. once it started, thereafter it worked fine.
We had the starter motor replaced and it is solved.

quattrothatcould

Might be the starter or starter relay. Any codes?

DB/S4

Ah ha! Sucks that your clutch switch replacement didn't work out. Firm bet that it's the starter.

2PUTT

i am ready to sell it to you...just let me know. =)