AUDIFAN008

When the TPMS went off, I checked all tire, they all have around 40-42lbs.
How many lbs I should keep?

Fluffhead

I don't have the manual in front of me, but I think it will go off if it drops a few psi.

So if your car was locked at 45+, it would go off when it reaches 40-42.

I keep mine at 41 all around for a little extra protection on the roads in my area, but I know there are many people who use lower pressures.

AUDIFAN008

at 41psi the front still looks a bit soft and kinda flat....I reset the sensor after I add some air to like 46-48psi each.....not sure if that will be too high.

RI A6

If you're driving with 3 other passengers, 41 psi makes sense, but if it's mostly yourself and one other passenger, around 38 is perfect. On the track you'll drop it even further.

AUDIFAN008

dang...so I guess I need to let some air out =(

craiglieberman

All cars have their proper operating tire pressures printed on their driver's side door jambs. Check there.

Check tires when they're cold of course.

You can adjust up or down a few psi depending upon direct experience and you can air up a few psi for heavier loads, b ut 50 lbs is way, way too high. I think I run 40 or 41 psi

RI A6

Wear is much more even on the tires around 38 psi.

Reggie

but do it when the tires are cold