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2010 battery keeps dying
Thread Starter
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
2010 battery keeps dying
My battery dies overnight or sometimes a few hours. I first noticed it after a car wash a month ago. They had to jump it. Next was about a 2 weeks ago when I was updating the maps it died after 20 min (engine off) and had to jump it. Then yesterday before I left for dinner had to jump it again. Drove about 30 min to the restaurant then 2 hours later had to get it jumped again. This morning the same thing. Would a disconnected trunk light do it? Also my window control lost the 1 touch auto close feature. I don't see how those 2 could drain battery. When I go into engineering menu it has a bunch of low battery warning with voltage going down to about 9-10v
Last edited by aznmode; Mar 17, 2014 at 02:04 PM.
Member
Joined: Dec 2010
Posts: 215
Likes: 3
From: Montreal
2009 C300 4Matic Sport + Premium 2
Yup had exact same issues last year. Time to get a brand new battery. after 3-4 years, the battery needs to be changed.
I am now using an Interstate Mega-Tron MTP (recommended)
P.S.: don't update maps on battery power alone. Either drive the car during the map updates or get a professional battery charger.
I am now using an Interstate Mega-Tron MTP (recommended)
P.S.: don't update maps on battery power alone. Either drive the car during the map updates or get a professional battery charger.
Last edited by RavenMDX; Mar 17, 2014 at 05:00 PM.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
Yup had exact same issues last year. Time to get a brand new battery. after 3-4 years, the battery needs to be changed.
I am now using an Interstate Mega-Tron MTP (recommended)
P.S.: don't update maps on battery power alone. Either drive the car during the map updates or get a professional battery charger.
I am now using an Interstate Mega-Tron MTP (recommended)
P.S.: don't update maps on battery power alone. Either drive the car during the map updates or get a professional battery charger.
I thought our battery is supposed to last 8 years. I'm surprised yours only lasted half that. Mine's almost 6 years old.
Member
Joined: Dec 2010
Posts: 215
Likes: 3
From: Montreal
2009 C300 4Matic Sport + Premium 2
I took it to the dealer and they said the battery doesn't hold charge so it does look like a battery issue. I got charged $252. $165 for the battery and the rest labor after 15% discount. How much did you buy your battery for? I was going to try to do it myself but I don't know of a way to do it without losing the programming on my car. If you swap battery the car needs to be reprogrammed so I figured the dealer would be my best bet.
I thought our battery is supposed to last 8 years. I'm surprised yours only lasted half that. Mine's almost 6 years old.
I thought our battery is supposed to last 8 years. I'm surprised yours only lasted half that. Mine's almost 6 years old.
8 years? hehe not in our benz..too many modules/tech. Your lucky it lasted that long
Member
Joined: Nov 2011
Posts: 195
Likes: 1
From: Manchester, ME
10' C300 Sport and 07 Ducati S2R
Isn't there a little 9volt battery device you can plug into the cigarette lighter to keep "voltage" in the car while you are changing out a battery? I've seen that somewhere... not sure if applicable in our vehicles.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
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MBWorld Fanatic!
Joined: Mar 2008
Posts: 3,714
Likes: 56
From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Just a thought.... having the key on accessories may expose your car electrics ie sams to voltage spikes when changing the battery.
If the key is off & withdrawn is there less likely hood of this happening ?
If the key is off & withdrawn is there less likely hood of this happening ?
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Member
Joined: Oct 2008
Posts: 225
Likes: 1
From: London, U.K.
MB C220 Sport W204, 18" AMGs, Grey lthr, xenons, p'ktronic, HKardon, Comand nav.
Battery life
Just another side to this battery issue - 5 years and 2 months on the original OEM battery - and it even held its charge while I left for 5 weeks at home late last year while we were on vacation in Australia!
Used most days and have the auto headlights on 24/7.
Just my 2 cents....
Used most days and have the auto headlights on 24/7.
Just my 2 cents....
Member
Joined: Nov 2011
Posts: 195
Likes: 1
From: Manchester, ME
10' C300 Sport and 07 Ducati S2R
Original battery on my 2010 as well... I did have to put it on a charger once; overnight. With the freezing below zero Maine winter I've been having, the car has started every morning... pretty impressed with this particular battery so far.
Super Member
Joined: Mar 2011
Posts: 803
Likes: 37
From: Bay Area, CA
2011 C300 Sport, P1, MM, Wood, Heated FS, DIY rearview camera.
I have a trickle charger and I charge the battery whenever battery reading is 11.4V or below.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
Just another side to this battery issue - 5 years and 2 months on the original OEM battery - and it even held its charge while I left for 5 weeks at home late last year while we were on vacation in Australia!
Used most days and have the auto headlights on 24/7.
Just my 2 cents....
Used most days and have the auto headlights on 24/7.
Just my 2 cents....
Last edited by aznmode; Mar 19, 2014 at 12:31 PM.
Member
Joined: Oct 2008
Posts: 225
Likes: 1
From: London, U.K.
MB C220 Sport W204, 18" AMGs, Grey lthr, xenons, p'ktronic, HKardon, Comand nav.
Thanks - I have 59K miles on it now - most of those were done in its first 2 years as I was doing a lot of traveling around the UK and Europe. It'll get another 3000 this year as we're going to the south of France in it in the summer. Great car and looks as good as new (better even as the paint has had a lot of extra care and attention!).
