I've replaced the battery, not the problem. The battery goes so dead that there are no interior lights and you can't turn the key. I can charge it over night and it starts. But as soon as the temperature drops, dead again.
And it losses all of its settings.


Something cold related must still be running ?? All lights are off, radio off, I hear the air suspension "empty" and it sounds totally silent. Any ideas what cold related CM cold still be active ? We've got warm weather for the next two days but then back into the deep freeze

 

Vinifera hola!
My suggestion would be to remove the battery and get it checked! Replace it if in doubt,

Also look at the ground cable it tends to corrode. When charging look for 13,5 14.2 volts

It is essential that the battery is in good condition; this car consume a lot of power even when switched off and before the systems go to sleep!

By doing what you are doing you run the risk of damaging your SatNav system as a circuit board integral battery will eventually be run down and the program lost in the BIOS. Curtains! They are about $3500 to replace.

T/V

 

Bad alternator. It wouldn't hurt to check that also. Rusty ground wire could do it too.