2013 S550 battery - question for Konigstiger
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2013 S550, 2012 GL550
2013 S550 battery - question for Konigstiger
I have a facelifted 2013 S550 and preparing for possible battery change. Posts here seem to differ regarding one vs. two batteries (engine compartment and behind rear seat). I have read that some w221 cars have two batteries with smaller starting battery under the hood and larger consumer battery behind the seats and some cars only have one large battery under the hood.
A definitive answer before I start to rip into the lining of the trunk would be greatly appreciated.
In the engine compartment is a rather large battery - 95Ah/850A - part No. A 005 541 10 01
Do I have one or two batteries in this car?
Thank you in advance for any guidance you may be willing to offer.
Regards,
Ivan
A definitive answer before I start to rip into the lining of the trunk would be greatly appreciated.
In the engine compartment is a rather large battery - 95Ah/850A - part No. A 005 541 10 01
Do I have one or two batteries in this car?
Thank you in advance for any guidance you may be willing to offer.
Regards,
Ivan
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Joined: May 2015
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From: Miami, FL
2003 CL 600
The engine compartment battery is a small one. All 221 chassis cars have the large battery behind the panel in the trunk. Some early cars had the smaller starter battery under the hood but that was phased out as it was really unnecessary. That was a carry over system from the 230 SL, which with SBC and so many other systems, it made sense to have a backup starter battery. That system was more hassle than it was worth and Benz got away from it fully after not too long.
Easiest thing to be sure, is pop the hood and ensure you don't have the one up front, but i've never seen a facelifted 221 with a starter battery, and certainly not on a M278 engine car.
Easiest thing to be sure, is pop the hood and ensure you don't have the one up front, but i've never seen a facelifted 221 with a starter battery, and certainly not on a M278 engine car.
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Joined: Nov 2014
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From: Chicago burbs
2015 S550
2010 to '13 W221's do not have a consumer battery behind the rear seat. They went to the full size battery under the hood which is what you likely need to replace. There is also a small battery under the dash, which I believe is a lithium one.
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2011 mercedes w221 s class
The engine compartment battery is a small one. All 221 chassis cars have the large battery behind the panel in the trunk. Some early cars had the smaller starter battery under the hood but that was phased out as it was really unnecessary. That was a carry over system from the 230 SL, which with SBC and so many other systems, it made sense to have a backup starter battery. That system was more hassle than it was worth and Benz got away from it fully after not too long.
Easiest thing to be sure, is pop the hood and ensure you don't have the one up front, but i've never seen a facelifted 221 with a starter battery, and certainly not on a M278 engine car.
Easiest thing to be sure, is pop the hood and ensure you don't have the one up front, but i've never seen a facelifted 221 with a starter battery, and certainly not on a M278 engine car.
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From: North Scottsdale, AZ
'71 Pinto
Starter battery is in engine compartment (OEM 00555411001 replaced by 00198208), should also be additional small backup battery in dash.
Last edited by konigstiger; Nov 15, 2017 at 10:27 AM.
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2013 S550, 2012 GL550
Thank you Konigstiger,
I appreciate your reply and the diagrams. From your and Dave's responses, I gather that my car's main battery is under the hood and no battery behind rear seats. Saves me the hassle of getting under the trunk lining.
Do you know if all w221 cars have the small battery in dash you mentioned in your post? I had the lower cover and the fuse box on driver side off recently when I was installing Mid City VIM and Remote Starter modules but do not recall seeing any battery in that area, unless it is really hidden. Is there a way to find the exact configuration from the VIN? I purchased the car used so I do not have the data card.
What does the small battery do? Will it serve to keep all the settings intact when the main battery in the engine compartment is disconnected during exchange?
Regards,
Ivan
I appreciate your reply and the diagrams. From your and Dave's responses, I gather that my car's main battery is under the hood and no battery behind rear seats. Saves me the hassle of getting under the trunk lining.
Do you know if all w221 cars have the small battery in dash you mentioned in your post? I had the lower cover and the fuse box on driver side off recently when I was installing Mid City VIM and Remote Starter modules but do not recall seeing any battery in that area, unless it is really hidden. Is there a way to find the exact configuration from the VIN? I purchased the car used so I do not have the data card.
What does the small battery do? Will it serve to keep all the settings intact when the main battery in the engine compartment is disconnected during exchange?
Regards,
Ivan
MBWorld Fanatic!
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
Thank you Konigstiger,
I appreciate your reply and the diagrams. From your and Dave's responses, I gather that my car's main battery is under the hood and no battery behind rear seats. Saves me the hassle of getting under the trunk lining.
Do you know if all w221 cars have the small battery in dash you mentioned in your post? I had the lower cover and the fuse box on driver side off recently when I was installing Mid City VIM and Remote Starter modules but do not recall seeing any battery in that area, unless it is really hidden. Is there a way to find the exact configuration from the VIN? I purchased the car used so I do not have the data card.
What does the small battery do? Will it serve to keep all the settings intact when the main battery in the engine compartment is disconnected during exchange?
Regards,
Ivan
I appreciate your reply and the diagrams. From your and Dave's responses, I gather that my car's main battery is under the hood and no battery behind rear seats. Saves me the hassle of getting under the trunk lining.
Do you know if all w221 cars have the small battery in dash you mentioned in your post? I had the lower cover and the fuse box on driver side off recently when I was installing Mid City VIM and Remote Starter modules but do not recall seeing any battery in that area, unless it is really hidden. Is there a way to find the exact configuration from the VIN? I purchased the car used so I do not have the data card.
What does the small battery do? Will it serve to keep all the settings intact when the main battery in the engine compartment is disconnected during exchange?
Regards,
Ivan
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Joined: May 2015
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From: Miami, FL
2003 CL 600
Yes, your 2013 definitely has the small battery under the dash. And yes, it will keep all of you car's settings while you replace the main battery under the hood. You can get a replacement front battery at Walmart or another parts store for less than half of a MB branded one. And the battery you will buy at those stores will likely be made at the same factory that produced the Benz branded battery. Only the labeling is different.
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