I have factory gauges on my 06 MR, and just wondering what the normal voltage the gauge should be showing?
Mine shows 14-14.3... is that normal ??

THANKS

 

14.5ish with the car started, and around 12 with the engine off.
Your in good shape.

 

thats exactly what i have.
the reason i even asked is because the gauge always showed ~12, but then i went to the dealer and they found a torn off ground wire. once they fixed it, it shows ~14 with the car on, and ~12 with the car off