Help! My ESP light stay on...

[jueshen]

how come you running a different size spare??
my spare is a full alloy like my rim.... 16' 205/45

[kelvniii]

how come you have a spare in your trunk? but i don't?
since my tyre grow a little bubble at the side wall, and I'm now ordering a new set of wheels and tyres so the Tyre shop borrow me a spare to run until Friday!
and its now running on a 195 50... something like that...

[pologti18t]

You can get rid of the problem by pressing the tyre pressure SET button.
You should do this on a regular basis (after setting tyre pressures). It gives the computer a baseline for rotational circumferences of the tyres.

[kelvniii]

the light lights up at the first time, (after i got the tyre changed) i did press it to clear it, and then it pops up the ESP light, so i have to use VAG-COM to clear the fault code~