Jun 24, 2015, 12:38 PM
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MBWorld Fanatic!
Joined: Feb 2014
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From: MA
2008 E350 4Matic, 2011 E350 4matic
That's probably a regular flooded battery. The AGM battery is usually a bit more and that's what MB mostly put in their cars. I would just get an AGM battery. For regular flooded batteries, there's many other places that carry them like Home Depot, Costco etc. I'd just like the AGM because they don't normally vent gases like flooded batteries so you don't end up with any corrosion on the battery terminals and they're supposed to last longer. Although there's some guy out there that likes to go on and on about how some battery from Spain lasted 13 years, but that's not typical.
Senior Member
Joined: May 2014
Posts: 485
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From: Concord, CA
'13 E350 . M276
I just checked PepBoys' AGM Bosch, and it's $219 plus installation and additional service fees of $115, but there is a $10 discount plus 20% off coupon. I will definitely go with an AGM, but will shop around first. This thing weighs a ton, and I can't do it myself, so installation is a must!
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Joined: Feb 2014
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Well it's 52 pounds so not quite a ton, but not light either. Advance Auto would install it for free. I think Autozone might too. I think Advance bought Carquest so you could check there too.
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From: V E G A S
1922 Ford Model T / no OBD
Double check the installation. Most of chain suppliers have small print
"Mercedes excluded". The yesterday's burger flippers will have hard time to reset Mercedes after battery replacement.
Than I read reports of such boys connecting battery in reverse and ending with frying $2000 worth of computers.
Flooded battery lasting 13 years is not that rare. I recall at least 2 owners of W210 reporting 15 and 17 years on factory batteries.
So far AGM owners are not coming better than 5 years.
Your money.
"Mercedes excluded". The yesterday's burger flippers will have hard time to reset Mercedes after battery replacement.
Than I read reports of such boys connecting battery in reverse and ending with frying $2000 worth of computers.
Flooded battery lasting 13 years is not that rare. I recall at least 2 owners of W210 reporting 15 and 17 years on factory batteries.
So far AGM owners are not coming better than 5 years.
Your money.
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Joined: Feb 2014
Posts: 6,190
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Mine is original and is at 8 years. All you have to do is search the threads, there are many people who have gotten 8-10 years out of their AGM batteries.
There are many articles out there about how AGM batteries are supposed to be better than flooded.
http://www.yuasabatteries.com/faqs.php?action=1&id=32
http://bdbatteries.com/batterycomparison.php
https://www.pepboys.com/car_care_cor...ntages_of_agm/
There are many articles out there about how AGM batteries are supposed to be better than flooded.
http://www.yuasabatteries.com/faqs.php?action=1&id=32
http://bdbatteries.com/batterycomparison.php
https://www.pepboys.com/car_care_cor...ntages_of_agm/
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
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From: V E G A S
1922 Ford Model T / no OBD
If you want to educate yourself, you should stop listening to salesmen and start reading some technical opinions.
https://en.wikipedia.org/wiki/VRLA_battery
And again - your money. W211 originally come with flooded batteries. From what the seller told me, the 2004 original battery from my car was replaced in 2013 becouse the car was advertised for sale and several time a day was started for a minute to drive it out the warehouse and then back. That would kill any battery.
AGM automobile batteries are typically about twice the price of flooded-cell batteries in a given BCI size group; gel batteries as much as five times greater. AGM & Gel VRLA batteries:
Have shorter recharge time than flooded lead-acid.[15]
Cannot tolerate overcharging: overcharging leads to premature failure.[15]
Have shorter useful life, compared to properly maintained wet-cell battery.[15]
Discharge significantly less hydrogen gas.[15]
AGM batteries are by nature, safer for the environment, and safer to use.
Can be used or positioned in any orientation.
Have shorter recharge time than flooded lead-acid.[15]
Cannot tolerate overcharging: overcharging leads to premature failure.[15]
Have shorter useful life, compared to properly maintained wet-cell battery.[15]
Discharge significantly less hydrogen gas.[15]
AGM batteries are by nature, safer for the environment, and safer to use.
Can be used or positioned in any orientation.
And again - your money. W211 originally come with flooded batteries. From what the seller told me, the 2004 original battery from my car was replaced in 2013 becouse the car was advertised for sale and several time a day was started for a minute to drive it out the warehouse and then back. That would kill any battery.
Senior Member
Joined: May 2014
Posts: 485
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From: Concord, CA
'13 E350 . M276
This evening I had been parked all day, temp was around 58 degrees. I checked voltage and it was 11.9, but when I started car, it went up to 14.0 and stayed around there for my 25 minute drive home. Are these numbers normal?
Is there a date printed somewhere on the OEM battery so I could check it?
Is there a date printed somewhere on the OEM battery so I could check it?
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From: The Villages, Florida
2006 E320 CDI
MBWorld Fanatic!
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From: V E G A S
1922 Ford Model T / no OBD
Al the cluster readout shows about 0.5V lower than the battery is.
So when 12.4V is normal, but on low side, the 14.5V is overcharge.
I would confirm that with meter on battery clamps.
So when 12.4V is normal, but on low side, the 14.5V is overcharge.
I would confirm that with meter on battery clamps.
Senior Member
Joined: May 2014
Posts: 485
Likes: 31
From: Concord, CA
'13 E350 . M276
I agree a visit to AutoZone to check battery is best way to be certain! Thanks.
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