Quote Originally Posted by Joe Chu View Post
Yes this is true, but all tyres must be at the same pressure, the TPM works off the wheel speed sensor's on Polo and Golf.
The TPM does work off the wheel speed sensor, but it calculates it based on whatever pressures are in there at the moment you press and hold the reset.

I've run 28psi at the rear and 37psi on the front (why is not important) but pressing and holding the tyre button tells the sensors that whatever tyre pressure is in there now, that's what I want and alert me if it changes.