E-Class (W212) 2010 - 2016: E 350, E 550

How many batteries in E350?

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Old 11-21-2010, 04:53 AM
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2011 Porsche 911 Carrera,07 S550. 2010 E350 4matic, 05 Honda Accord V6.
How many batteries in E350?

I am going to store my 2010 E350 for 48 days and I am worried about drain in battery. SO I will unplug the wires from battery. By the way how many batteries in E350? If just one in engine compartment, then I can just unplug that. If there is another one in the back, then I need help how to reach it or disconnet it. Does anybody know?

Thank you in advance.
Old 11-21-2010, 07:14 AM
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I think there are two......
Old 11-21-2010, 08:26 AM
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why not just connect a trickle charger?
Old 11-21-2010, 09:35 AM
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trickle trickle...........
Old 11-21-2010, 09:58 AM
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Originally Posted by mg-E550
why not just connect a trickle charger?

I would not even think about disconnecting the battery. It may mess up with several systems in the car and you might need a "reset" trip to the dealer after reconnecting? Or is MB somehow different than Audi for example?

I dont't think battery will drain in 48 days but if I did I would get another battery and connect it parallell with the car's battery. Two batteries for sure will not drain in 48 days.

And it does not need to be a MB battery for this purpose...
Old 11-21-2010, 10:40 AM
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48 days should present no problem at all. I would just park the car and walk away. Have had mine idle for longer periods then that with no issue.
Old 11-21-2010, 11:15 AM
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I thought the 350 had 1 vs the 550 with 2 batteries, does anyone have the facts?
Old 11-21-2010, 11:23 AM
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there are some other threads on this site with guys talking about losing charge after 2 or 3 weeks... I definitely wouldn't assume it will go 48 days. I think many years ago that would have been the case but with all the electronics on these things that stay in a standby or passive mode while the car is off you lose charge (alarm, keyless go, airmatic, among others). Per my earlier post - I think a trickle charger should be the easiest, cheapest and safest way to assure she fires up when you get back.
Old 11-21-2010, 11:39 AM
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Originally Posted by mg-E550
there are some other threads on this site with guys talking about losing charge after 2 or 3 weeks... I definitely wouldn't assume it will go 48 days. I think many years ago that would have been the case but with all the electronics on these things that stay in a standby or passive mode while the car is off you lose charge (alarm, keyless go, airmatic, among others). Per my earlier post - I think a trickle charger should be the easiest, cheapest and safest way to assure she fires up when you get back.
Per my earlier post. Have had mine idle for 67 days and upon return it started like it was driven the day before. You are making a mountain out of a mole hill!! No need to do anything for 48 days!! As far as how many batteries, I have been told one in the E350 and two in the E550. This is unlike my previous E320 (05) that had two. For the record my 2010 ML550 has sat for a similar length of time with no issues at all.
Old 11-21-2010, 01:36 PM
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...21 GLE53 24 GLE53
Unlike the older MB models, the system goes to sleep and does not drain the battery. If for some reason it loses it's charge, roadside assistance will come to the rescue at no charge.
Old 11-21-2010, 01:46 PM
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I had mine parked in my garage for 4 months, and started up like it was driven the day before. Its a brand new car, brand new battery. I would only worry about removing the battery when the car/battery is 5yrs+ old.
Old 11-21-2010, 01:49 PM
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Originally Posted by Tjdehya
I had mine parked in my garage for 4 months, and started up like it was driven the day before. Its a brand new car, brand new battery. I would only worry about removing the battery when the car/battery is 5yrs+ old.
If the battery is 5 years old it should be replaced. I change mine every 4.5 to 5 years and being proactive has allowed me to operate without any concerns about starting, etc and being stuck somewhere I do not want to be.
Old 11-21-2010, 02:29 PM
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Originally Posted by Arrie
I would not even think about disconnecting the battery. It may mess up with several systems in the car and you might need a "reset" trip to the dealer after reconnecting? Or is MB somehow different than Audi for example?

I dont't think battery will drain in 48 days but if I did I would get another battery and connect it parallell with the car's battery. Two batteries for sure will not drain in 48 days.

And it does not need to be a MB battery for this purpose...
Yeh I had heard the 350 only has one vs the 550 with 2 but just wanted to confirm.

FTB
Old 11-21-2010, 07:51 PM
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48 days... no problem. It will start right up.
Old 11-21-2010, 08:34 PM
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E350
Originally Posted by AMGFREAK
48 days... no problem. It will start right up.

Wouldn't it depend on where it was parked and what the weather conditions are?

Difference between a warm garage/CA vs. an airport garage/NY in winter?

Last edited by BenzE350; 11-21-2010 at 09:23 PM.
Old 11-21-2010, 09:17 PM
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It will be fine. I am pretty sure of it. If not then give roadside assistance a call. Your stressing to much.
Old 11-22-2010, 04:11 AM
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Thank you for all replies

From all of your advise,
I will just leave it in the storage and go. I was going to leave in the driveway, but here in NY, we have bunch of snow, and I don't want to leave the car outside for 48 days. So we decided to put it in the public storage. The problem with charger is that there is no power outlet in that storage.

Anyway I will write a post after I come back.

Thank you all.

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