View Single Post
      05-17-2009, 12:25 PM   #75
808MGuy's Avatar
Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

Posts: 2,256
iTrader: (3)

Originally Posted by swamp2 View Post
808MGuy: The voltage you measure at the battery terminals when the car is running is the alternator voltage, not the battery voltage, and as I mentioned at idle this is something like 14.5-14.8.
Yes I already mentioned that but if the engine on voltage is not getting up to 14V it could point to other problems. It looks like your charge voltage is good though.
09 E90 M3 - Interlagos Blue / Black Novillo / Sycamore Anthracite / Eibach / HRE

808MGuy is offline  
Reply With Quote