I have a terrible problem! I have some sort of electrical problem where something is draining my battery while my car is off. I've tried buying a new battery and everything. If I drive my car a lot, then the battery stays charged. When I don't drive it in 12 hours, I would have to jump start my car. I've jump started my car a billion of times now! Does anyone have the same problem? What could be wrong with my car?

 

howdy ... i have the same problem but with my jeep wrangler, i have not fully analysed the problem since it is my 'toy' car that i drive on weekends, i simply unplug my battary when planning on not driving it for a week or so (12 HRs is too short), but obviously for your case and mine we have some loose wire grounding the battart and draining it, best thing is take it to a shop and have them analyse the circuit piece by piece till they catch the leak .. that is best i could think of ..

 

youve either got a bum battery or a decent parasitic draw.

a shop will test for the parasitic draw, then if it is found they will most likely pull fuses one by one until it disappears, when they find where it disappears at, it could be anything in the circuit that the particular fuse protects. then it would come down to pinpointing which part of the circuit it is. if you have a digital multimeter, or have experience with this type of stuff, let me know and i can walk you through how to find where your problem lies.

 

I've had no problem with my C320.

BUT I DID have this problem with my Grand Cherokee Jeep a couple of years ago, I isolated it to the extra wiring and lighting controller for the tow hitch. Once carefully removed the problem was solved!

If you have a tow or extra lighting fitted this could be the cause, Otherwise it maybe a jammed door or window soleniod (switch mechanism).

Just a thought!
Best of luck

Peter

2001 C320 Elegance - Brilliant Silver - Premium MB Alloys - Black Leather - CD - *Xenon Lights OEM - K&N Panel Filters x2

 

unplug both front seat modules . they may be not going to sleep after u turn off your car . the correct way is wait for ten minutes after you have remove the thob , then unplug the seats