deuxslow

Yeah we got a new battery for our 01' c320. The battery dies after 2-3 days of just sitting there in the drive way. Not getting any warning messages regarding the charging system. I'm out of ideas.

Racin_fool

more than likely, you have an amp draw problem from one of the seat control modules causing the battery to drain after a short while.

deuxslow

interesting theory...should I try disconnecting the power to both seats?

Racin_fool

if you plan on leaving the car for a few days, it would be worth a try. There are 2 plugs for each control module that I would disconnect in the front to make sure they aren't active.

make sure to leave the seat where you'd like it incase you want to jump in and go anywhere without reconnecting them.

deuxslow

I'll try it then update this thread in few days just incase anyone may have the same issue.

Thanks

MBTECH2003

Seat control modules in a 203 is a VERY common problem, unplugging them will most likely fix your problem. They need to be coded when installed, which needs to be done at a dealer though.

SUNILP

You can operate the seats fine without coding and memory will work as well. Coding can be done at a later date.