darn left the turnk light on. do I need a new battery.
 

I left the tunk open for about a week. The trunk light was on. I check the voltage on the battery it read 11.5 volts. The lights power locks radio still works, but did not bother to start. I closed the trunk and place a trickle charger on the battery last night when I found out the problem.

I don't know the age of the battery but it look fairly new (I purchase the vehical used).

I hope I did not just kill the battery. What do you folks think. Do you folks have experience with these things.

thanks

Call Roadside assistance, they'll jump it for you or replace the battery for just the price of the battery IIRC.
Gilly

thanks gilly sound like good advice.
 

thanks gilly. I have he battary charged up. If I run into problem I will call mercedes road side assistance. If they are only going to charge of the battery sounds like a good deal.

When my battery goes I like the idea of having a mercedes battery.

blau

Left my ML at a long term parking lot at the airport this Xmas. Overhead hatch light was left in the "on" position, and it was daylight, so I didn't notice.

Vehicle was completely dead when we returned. Shuttle driver gave us a jump, and all was well ever since...