car battery dead overnight
modern batteries stop taking a charge ten percent per year...so look 'pon the top of the battery...the "knock-off" labels will indicate the month and year of the batteries first charge...it's all downhill from there~...seriously you may have a parasitic drain...you could follow eric the car guy's video~ http://www.youtube.com/watch?v=KF1gijj03_0
five years tops....perhaps you're expecting more of the ole' girl~
Battery is new but some unit in the car seem to be draining the battery.
Looking for a Used C-Class in your area?
CarGurus has 28,354 nationwide C-Class listings starting at $2,001.
Search Mercedes-Benz C-Class Questions
Mercedes-Benz C-Class Experts
Related Models For Sale
Used Cars For Sale