Proper tire pressure for factory 255/35/19 summer?

[Meadowdale]

Other than having the key fob issue I also got a tire pressure warning today. So, I checked out the pressure. Turns out that the pressure was low all around (34 front, 32 rear) but everything consistent. Why the light came on day that was hotter than usual and while driving is still a mystery to me. But to be fair I did not check pressure since I got the car this summer since it was twice at a Audi dealer.

The sticker in the car indicates: 41 PSI front, 38 PSI rear. Is this the proper pressure for factory wheels 255/35/19 with summer tires (MY 15)?

[plat]

I just posted a thread on recommended tire pressures for 2013 and up (FL) A5 and S5 vehicles. Here is the link: http://www.audizine.com/forum/showth...1#post11966527

Also, make sure you reset your TPMS every time you fill or remove air from your tires to prevent the system from giving you a false alert.

[Meadowdale]

Thank you!

BTW. So Audi's don't have TPMS sensors, rather they measure wheel rotation changes?

[plat]

Thank you!

BTW. So Audi's don't have TPMS sensors, rather they measure wheel rotation changes?

I believe the earlier PFL models used TPMS sensors. The newer models use the ABS to measure wheel rotation changes. Not sure when the A5/S5 stopped using TPMS sensors.