How long did your battery last?
Out Of Control!!
Joined: Nov 2018
Posts: 11,398
Likes: 5,322
From: San Francisco Bay Area
2019 C63CS
Batteries in today's modern cars with tons of electronics don't last 10 years anymore. Average lifespan of a battery these days is about 4 years. The W205 like many other modern cars uses an AGM battery as they can handle all the electronic consumers. In old cars, the biggest job for the battery was to start the engine, but once running there wasn't much to power. Very different story these days. Ultimately the lifetime of the battery depends on environmental conditions as well. In rougher climates where it gets cold often it won't last as long.
Member
Joined: Aug 2021
Posts: 95
Likes: 26
2017 C300
What is everyone doing in terms of battery replacement? I've read that you can use any battery that meets the same spec as the OEM one, but you also need to reset something with Xentry which only the dealer can do.
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MBWorld Fanatic!
Joined: May 2018
Posts: 1,246
Likes: 243
W205 2015
I got Varta. The Varta guy who replaced the OEM connected the car to temporary power while he was replacing the batteries. Nothing changed in the car no restting no coding no Xentry nothing no visit to the dealer or stealer if i may say.
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Talking in general, but I am only a professional who fixes 5-12 MB a week
This depends on:
Do you drive your car twice a week or every day
What Class it is
What is your average Temp ?
what options you have
for example on a post 2016 S class in Texas driven 3 days a week replacement is 3.5 years this is in my eyes the nest secure replacement delay
who cares spending 100$ every 3.5 years on a MB anyway
This depends on:
Do you drive your car twice a week or every day
What Class it is
What is your average Temp ?
what options you have
for example on a post 2016 S class in Texas driven 3 days a week replacement is 3.5 years this is in my eyes the nest secure replacement delay
who cares spending 100$ every 3.5 years on a MB anyway
MBWorld Fanatic!
Joined: Oct 2018
Posts: 1,430
Likes: 820
From: Florida
2018 AMG E43
I purchased my 2015 used in 2018, so I don't know the history prior to me but the battery looks like the factory supplied battery and it's still going strong (knock on wood).
My car sits a lot too, I've only put on ~20K miles since I bought it.
There are definitely a lot of variables involved in how long a particular battery will last.
My car sits a lot too, I've only put on ~20K miles since I bought it.
There are definitely a lot of variables involved in how long a particular battery will last.
Thread Starter
Banned
Joined: Jul 2020
Posts: 75
Likes: 13
I bought the Mercedes replacement at the dealership and switched it out myself. $300 for the battery but I'd rather have the OEM battery than one from autozone. Switched it out myself, you only need 3/8 ratchet with 10 and 13mm sockets.
Thread Starter
Banned
Joined: Jul 2020
Posts: 75
Likes: 13
Talking in general, but I am only a professional who fixes 5-12 MB a week
This depends on:
Do you drive your car twice a week or every day
What Class it is
What is your average Temp ?
what options you have
for example on a post 2016 S class in Texas driven 3 days a week replacement is 3.5 years this is in my eyes the nest secure replacement delay
who cares spending 100$ every 3.5 years on a MB anyway
This depends on:
Do you drive your car twice a week or every day
What Class it is
What is your average Temp ?
what options you have
for example on a post 2016 S class in Texas driven 3 days a week replacement is 3.5 years this is in my eyes the nest secure replacement delay
who cares spending 100$ every 3.5 years on a MB anyway
Member
Joined: Sep 2020
Posts: 224
Likes: 60
W205
Didn't reset anything via Xentry after changing it, the only thing to change would be to tell BCM that it is a new battery and not to crank the alternator output way up but W205 is smart enough where it will dynamically adjust the charging of the battery depending on it and other conditions.
My W205 was supplied with a Varta battery with MB labels, I actually bought a replacement at 4.5 year mark and Varta F21 is exactly the same battery bar for the labels.
Didn't reset anything via Xentry after changing it, the only thing to change would be to tell BCM that it is a new battery and not to crank the alternator output way up but W205 is smart enough where it will dynamically adjust the charging of the battery depending on it and other conditions.
Didn't reset anything via Xentry after changing it, the only thing to change would be to tell BCM that it is a new battery and not to crank the alternator output way up but W205 is smart enough where it will dynamically adjust the charging of the battery depending on it and other conditions.
is logical as they don't make any
just thought they didn't have that one public
Super Member
Joined: Mar 2018
Posts: 740
Likes: 135
From: Westchester County, NY
‘15 C300 4M Sport, ‘20 GLC300
While you switched out battery did you need to connect the vehicle to a temporary power source like another poster suggested?
MBWorld Fanatic!
Joined: Jul 2012
Posts: 4,509
Likes: 1,513
From: Orbiting the planet
This place is a joke.
About 3 years average on any new MB with Eco start/stop. Constantly cranking the engine takes it's toll on the battery. You save pennies in gas and will pay later, hundreds for a new battery once out of warranty. Previous MB's would average about 7 years.
Senior Member
Joined: Dec 2014
Posts: 480
Likes: 33
From: Waterloo, Ontario Canada
C300 4Matic Tenorite Grey
My low milage 2015 gets driven only occasionally like 1 or 2 times a week. Has gone through some pretty cold Canadian winters and is still on its original battery.
Senior Member
Joined: Nov 2016
Posts: 350
Likes: 54
2015 C400
Still on my original as well, 2015 C400.
Heres the options at Batteries+:
https://www.batteriesplus.com/batter...ic/v6-3.0l-gas
Heres the options at Batteries+:
https://www.batteriesplus.com/batter...ic/v6-3.0l-gas
