TPMS

[Martyn77]

I have a 2016 A3 S/line 2 L diesel Tdi   Can anyone help me?   Does the ABS control the tyre pressure monitor system (TPMS) ...or do the  original factory fitted  18"alloys have TPM Valves inside them?...  There is no fault on the system its purely a question... as my local garage were in the dark about this!  Hoping one or more of  you geniouses out there can advise me. Thanx in anticipation.

[Steve Q]

I think it's the valves inside the wheel.