Wathen316Uk
New member
I've got a 2012 VW Passat Bluemotion purchased in February 2017. I bought one of those gadgets that fits cigarette lighter to show what battery is charging at when I had issues with my Jetta. I've used it over last few weeks to check all is ok. Recently it seems to charge at 12.7 whenever I am driving normally. If driving downhill or with foot off accelerator it creeps back to 14.5. The garage used a multimeter to check charging levels when stationery and came back at 12.68. Is this an issue with the alternator or is something more sinister occurring?