1999 E280 Electrical Problem (below -2 deg!!)

[jons086]

OK, I know it's not that cold yet but my old (unsolved) problem will certainly return - battery draining ONLY when the temperature drops below zero. How can I find out what is switching on (and presumably not switching off) when we have a sudden drop in temperature?? Any ideas and help is appreciated - I really dont want to be standing in the road tyre kicking again this coming winter.


thanks again

Ian

PS
Tried the local MB dealer who... "cant fix a problem that isn't there when you bring it in" and Diagnostics apparently showed nothing!! and my local 'expert' auto electrician charged me £75 to find no faults either!!

 

[CLK Man]

Not sure if this helps, but Barnie on the forum advised me my MB CLK problems were possible a bad earth. Car seems fine now.

CLK Man

 

[CLK Man]

Not sure if got my reply re your PM, but do have electric warming seats or quickclear windscreen?

CLK Man

 

[panason1c]

Also, Feel the glass on the exterior door mirrors, they may be somehow switching themselves on when the temp' drops due to a faulty switch/relay.

 

[jons086]

Thanks to panason1c & CLK Man for the advice so far - I will check them out (when we have a cold spell!!) - although I dont have either electric warming seats or quickclear windscreen (but thanks CLK Man anyway) - I'm not sure about the heated mirrors though. Any further thoughts are welcomed.

Cheers

ian