Tyre Pressure Sensors

[Anth]

Can some one let me know how to change from BAR to PSI on the screen ?

[MikeFish]

Isn't it done via an option in the MMI.

[skirs6]

I think this has already been answered but is it 100% that on the C7 the sensors are actually in the wheel and not via abs or suspension system. I ask as I’m looking at a spare set of wheels and they don’t have any sensors in them which will obviously cost me a bit to purchase genuine Audi ones. If anyone knows cost please shout up save me hunting

[MikeFish]

I think this has already been answered but is it 100% that on the C7 the sensors are actually in the wheel and not via abs or suspension system. I ask as I’m looking at a spare set of wheels and they don’t have any sensors in them which will obviously cost me a bit to purchase genuine Audi ones. If anyone knows cost please shout up save me hunting

ABS type TPMS cannot measure the tyre pressure nor temperature. It guesses that the tyre has lost pressure as it turns at a different relative speed than it used to or compared to the other wheels. To measure the actual pressure or temperature like the RS6 can it must have actual sensors.
When I bought some wheels recently I had an option to purchase new sensors for £179 so that is probably a bit more than you will pay if hunting around. Can probably get a set cheaper on ebay if you know which ones to get.

[MikeFish]

I'm guessing these are the ones:
https://www.ebay.co.uk/itm/Audi-A6-Quat ... 1570382586

[MikeFish]

Also, the valves look physically different from the outside so you can tell if a wheel has then fitted or not.

[skirs6]

Cheers Mike I found those to but couldn’t find OEM Audi ones. The wheels I’m looking at according to the seller definitely don’t have them

[MikeFish]

Normal tyre valve:


Proper TPMS Valve:

[MikeFish]

Cheers Mike I found those to but couldn’t find OEM Audi ones. The wheels I’m looking at according to the seller definitely don’t have them

These maybe?
https://www.ebay.co.uk/itm/4x-Reifendru ... SwHYVac1xE

[skirs6]

I can’t find a price anywhere for genuine Audi ones ???

[skirs6]

Got the price from Audi OEM £101 each

[harrier]

Got the price from Audi OEM £101 each

Do look at these from UK Parts Direct, based in Westbury, Wiltshire. They are less than £40 each. The guys there are very helpful indeed and sorted out some for my mates 2007 Audi R8 V8:

https://www.ukpartsdirect.com/tpms-prod ... ensor.html