Bimmerfest - BMW Forums - View Single Post - TPMS Question
Thread: TPMS Question
View Single Post
Old 01-17-2013, 10:03 AM
x3brian x3brian is offline
Officially Welcomed to the 'Fest
Location: Sacramento CA
Join Date: Jan 2011
Posts: 1,279
Mein Auto: X3
Originally Posted by Supercourse View Post
That's the button that also applies to indirect FTM (no sensors in wheels) so doesn't tell you if you have direct TPMS.

The metal valves with a nut on them and plastic caps are the best indicator.
I didn't realize that...although I thought of another way...

Take 10 psi out of a tire and see if the warning come on immediately at start up or if you have to be driving around.

A direct tpms system will send a signal to the computer of a low pressure scenario. The other system uses abs wheel sensors and measures revolutions of the wheel at speed.

Last edited by x3brian; 01-17-2013 at 10:04 AM.
Reply With Quote