TPMS Warning on dashboard along with deflated tyre symbol.

[Martyn77]

On my 2016 A3   2.L tdi s/line  Any ideas as to what is causing this ? and remedy solution would be appreciated. 

Edited December 20, 2023 by Martyn77

[GranolaTTS]

Go to the menu, select systems - Servicing & checks - tire pressure monitoring system - store tire pressures -  yes store now & the light will go from the dash. 

Obviously, make sure you check all the tires are inflated to the correct pressure first... & Pump them up to the correct pressure. The cold often causes TPMS issues as the density of warm air is less in comparison to cold air. Around 1/2 PSI per 10 degrees in temperature. 

Or you could have a puncture or slow puncture. So best to keep an eye on the pressures after you reset, but almost every time it has happened to me it's just the car crying about nothing. It is not unusual for tires to naturally lose 1.3 PSI per month as air gets through the rubber via permeation. 

Pressures will be in Manual or can be found online...

Air can leak from the Tyre, valve, and rim if it's cracked or corroded around the seal. But I would place my bets on a slight pressure drop or a slow puncture.  Best to check the Tread condition and for any visible damage to each tyre while you're at it also. 

[Magnet]

Many thanks Granola,

Tyre pressures and temperature is indeed an important aspect, and I have found the variation to be quite a bit more than 0.5 psi/10 degrees (C?). 
Kind regards,

Gareth. 

[Martyn77]

Thanx Granola, I will follow your instructions and get back to you asap👍

[Martyn77]

Hi Granola, Followed your clear instructions to the letter. This solved the problem immediately. So grateful for that.  Best Wishes for Christmas and the New Year. Happy Audi motoring to everyone. 🚗

Edited December 21, 2023 by Martyn77
Solution NOT by me.. All credit (solution) to Granola!!