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Discussion Starter #1
I have an '09 Touareg V6 with the normal MFD in the dash and have noticed the tire PSI is usually 5-8 psi below what I measure AT the tire valve with a digital gauge.

Just wondering as my rears should be at 48psi, however at the valve I'm measuring 49-50psi and I'm not sure I trust the MFD display, however, I'd love for it to quit bothering me but don't want to put the tire psi at 55 in the back just to make the warning disappear ...

Anyone else notice this?
 

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The sensors are usually much more accurate than gauges. The best gauges can be off two pounds. Sensors will be good to the tenth of a pound.
 
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