Go Back  MBWorld.org Forums > Mercedes-Benz Sedans > C-Class (W204)
2010  battery keeps dying >

2010 battery keeps dying

Notices
C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI
Old 06-10-2015, 12:55 PM
How-Tos on this Topic
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: Electrical Guides
Print Wikipost

2010 battery keeps dying

 
Old 03-17-2014, 02:01 PM
  #1  
MBWorld Fanatic!
Thread Starter
 
aznmode's Avatar
 
Join Date: Aug 2007
Location: San Jose, CA
Posts: 1,310
Received 25 Likes on 14 Posts
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; 03-17-2014 at 02:04 PM.
aznmode is offline  
Old 03-17-2014, 04:57 PM
  #2  
Member
 
RavenMDX's Avatar
 
Join Date: Dec 2010
Location: Montreal
Posts: 215
Likes: 0
Received 2 Likes on 2 Posts
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.

Last edited by RavenMDX; 03-17-2014 at 05:00 PM.
RavenMDX is offline  
Old 03-17-2014, 05:44 PM
  #3  
MBWorld Fanatic!
Thread Starter
 
aznmode's Avatar
 
Join Date: Aug 2007
Location: San Jose, CA
Posts: 1,310
Received 25 Likes on 14 Posts
2010 c300
Originally Posted by RavenMDX View Post
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 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.
aznmode is offline  
Old 03-17-2014, 05:51 PM
  #4  
Member
 
RavenMDX's Avatar
 
Join Date: Dec 2010
Location: Montreal
Posts: 215
Likes: 0
Received 2 Likes on 2 Posts
2009 C300 4Matic Sport + Premium 2
Originally Posted by aznmode View Post
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.
The price you got charged for the battery is about right. No worries.

8 years? hehe not in our benz..too many modules/tech. Your lucky it lasted that long
RavenMDX is offline  
Old 03-17-2014, 06:08 PM
  #5  
Member
 
boom132's Avatar
 
Join Date: Nov 2011
Location: Manchester, ME
Posts: 195
Likes: 0
Received 0 Likes on 0 Posts
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.
boom132 is offline  
Old 03-17-2014, 07:55 PM
  #6  
MBWorld Fanatic!
Thread Starter
 
aznmode's Avatar
 
Join Date: Aug 2007
Location: San Jose, CA
Posts: 1,310
Received 25 Likes on 14 Posts
2010 c300
Originally Posted by boom132 View Post
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.
That would be cool.
aznmode is offline  
Old 03-17-2014, 08:54 PM
  #7  
Super Member
 
Join Date: Mar 2011
Location: Bay Area, CA
Posts: 659
Received 10 Likes on 10 Posts
2011 C300 Sport, P1, MM, Wood, Heated FS, DIY rearview camera. 2002 QX4
To do that, key should be turned to the first stop (accessories?). Otherwise the 9V battery is not connected to the main power.
C300CA is offline  
Old 03-19-2014, 02:34 AM
  #8  
MBWorld Fanatic!
 
Carsy's Avatar
 
Join Date: Mar 2008
Location: 1 hours drive north of Sydney Australia
Posts: 3,714
Received 42 Likes on 40 Posts
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 ?
Carsy is offline  
Old 03-19-2014, 08:14 AM
  #9  
Member
 
Join Date: Oct 2008
Location: London, U.K.
Posts: 222
Received 1 Like on 1 Post
MB C220 Sport W204, 18" AMGs, Grey lthr, xenons, p'ktronic, HKardon, Comand nav.
Smile 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....
NewtwoMB is offline  
Old 03-19-2014, 08:26 AM
  #10  
Member
 
boom132's Avatar
 
Join Date: Nov 2011
Location: Manchester, ME
Posts: 195
Likes: 0
Received 0 Likes on 0 Posts
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.
boom132 is offline  
Old 03-19-2014, 11:44 AM
  #11  
Super Member
 
Join Date: Mar 2011
Location: Bay Area, CA
Posts: 659
Received 10 Likes on 10 Posts
2011 C300 Sport, P1, MM, Wood, Heated FS, DIY rearview camera. 2002 QX4
Originally Posted by Carsy View Post
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 ?
Good point. I think better way is to connect a charger directly on + and ground terminals under the hood, or wire them into the cabin for 9V connection if parking on the street.


I have a trickle charger and I charge the battery whenever battery reading is 11.4V or below.
C300CA is offline  
Old 03-19-2014, 12:27 PM
  #12  
MBWorld Fanatic!
Thread Starter
 
aznmode's Avatar
 
Join Date: Aug 2007
Location: San Jose, CA
Posts: 1,310
Received 25 Likes on 14 Posts
2010 c300
Originally Posted by NewtwoMB View Post
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....
Nice! How many miles do you have? I have 61k. The dealer told me it was probably due to the number of starts that car had. Not really sure that validity of that but I'm the 2nd owner so I'm not sure how the car was used prior. But I've own a w203 that I had for 6 years and did not replace the battery on it. Traded it in last year so I'm not sure if it's still going.

Last edited by aznmode; 03-19-2014 at 12:31 PM.
aznmode is offline  
Old 03-19-2014, 01:29 PM
  #13  
Member
 
Join Date: Oct 2008
Location: London, U.K.
Posts: 222
Received 1 Like on 1 Post
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!).
NewtwoMB is offline  
 

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: 2010 battery keeps dying


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: