E-Class Coupe (C207) & Cabrio (A207) 2010-: E250CDI Coupe, E350 Coupe, E350CDI Coupe, E500 Coupe, E550 Coupe [Coupes & Cabriolets]

How often should car be started to maintain battery?

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Old Sep 1, 2024 | 05:51 PM
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2011 C207 E350 cabriolet
How often should car be started to maintain battery?

How often should I start my car to maintain the battery health? What about to prevent flat spots?
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Old Sep 1, 2024 | 11:29 PM
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'13 GLK350 4matic,'10 C207,'15 GLA250,'07 Honda Odyssey, '18 GLE 43, '24 EQS 580
If you dont have keyless go you can go for a month or two. If you do have it, at least start every 2 weeks as the car computer is always searching for the signal. If ypu will not use the car for a long time, get a battery trickle charger with maintenance mode.

Last edited by shotgun_banjo; Sep 1, 2024 at 11:30 PM.
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Old Sep 2, 2024 | 05:27 AM
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owners manual covers this well - well mine 2015 manual does.

Something like at least drive it every within 2weeks - not just crank it but drive it for a while
If it sits for over month use a trickle charger -
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Old Sep 2, 2024 | 07:03 AM
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2015 E400
Starting the car isn't enough. If you're not using a trickle charger, you need at least a 30-minute drive every week or two, especially if you want to avoid flat spots. If you're not driving for a few months, perhaps put it on jacks for longer-term storage to avoid flat spots.
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Old Sep 2, 2024 | 08:02 AM
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I store my X7 for several months during the winter, and use a 2A battery maintainer, jack stands to lift about 3/4 of the vehicle weight off the tires, a rubber mat to keep the tires off bare concrete, and a car cover to keep dust off it.
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