991 Voltage readings
#1
991 Voltage readings
Looking for some comparisons:
Normal hwy driving w/or w/o lights on... 13.4 - 13.9
When touching the brakes - again lights either on or off (for just a moment)- it spikes to 14.8-14.9 then finds it's way back down to 13.9.
Just noticed the "braking" varience today.
Sometimes when I start the car from cold - maybe it's sat for a couple days -
14.8 - 14.9 seems the norm on my car for maybe 1/2 hour or so.
Other's experiences?
Thanks!
Normal hwy driving w/or w/o lights on... 13.4 - 13.9
When touching the brakes - again lights either on or off (for just a moment)- it spikes to 14.8-14.9 then finds it's way back down to 13.9.
Just noticed the "braking" varience today.
Sometimes when I start the car from cold - maybe it's sat for a couple days -
14.8 - 14.9 seems the norm on my car for maybe 1/2 hour or so.
Other's experiences?
Thanks!
#5
Looking for some comparisons: Normal hwy driving w/or w/o lights on... 13.4 - 13.9 When touching the brakes - again lights either on or off (for just a moment)- it spikes to 14.8-14.9 then finds it's way back down to 13.9. Just noticed the "braking" varience today. Sometimes when I start the car from cold - maybe it's sat for a couple days - 14.8 - 14.9 seems the norm on my car for maybe 1/2 hour or so. Other's experiences? Thanks!
Frank C.
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#8
Also goes up when you select sports mode or sports+ (Assuming if it is not high already due to cold ambient temp.)
#10
Speaking of which, I de-activated the gas saving feature several months ago as it was freaking me out and as I switched to sport mode on a full time basis. I decided to check if the feature still worked last week and it does not any longer (in normal mode of course). My Voltage is in the mid-14's. What do you guys think? Battery starting to go? 20K miles, 2 years old.
#12
During cold start when it is cold out, it reads up to 14.8 right away.
After driving an hour, it would drop back to 13.7. Not sure why that is.
#13
When I first got my 991 the vehicle gauge in the dash that shows all the readings didn't have the voltage preference selected. It wasn't till I added
it to the menu that I started to wonder/think too much etc.
Probably I should just unselect it & be in the dark ha ha
#14
Shhhhh! If we complain the Porsche parents will program a software patch to fix the voltage display at 13.7.
If the battery dies the car won't start.
If the charging system malfunctions the car will tell you.
Perhaps we should display the altimeter instead
If the battery dies the car won't start.
If the charging system malfunctions the car will tell you.
Perhaps we should display the altimeter instead
Last edited by rnl; 10-30-2014 at 06:14 PM.