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Aftermarket Battery replacement

This is a discussion on Aftermarket Battery replacement within the CLA Maintenance / Care / Detailing forums, part of the Mercedes-Benz CLA Forum category; Originally Posted by Mach2burnout What warning messages do you get when the aux. battery goes bad? Sent from my iPhone using Tapatalk Auxilliary battery malfunction....

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  1. #41
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    Quote Originally Posted by Mach2burnout View Post
    What warning messages do you get when the aux. battery goes bad?


    Sent from my iPhone using Tapatalk
    Auxilliary battery malfunction.
    Mach2burnout likes this.

  • #42
    v35
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    Just changed my battery out for a Bosch AGM from Pepboys. 189.00 out the door. Battery was original from 2014. Replaced it with no special protocols. Pulled the old one out, put the new one in. Only thing I had to reset was the clock. Everything else functioned normally (window, sunroof, radio station memory unaffected)
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  • #43
    jmc
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    Quote Originally Posted by v35 View Post
    Just changed my battery out for a Bosch AGM from Pepboys. 189.00 out the door. Battery was original from 2014. Replaced it with no special protocols. Pulled the old one out, put the new one in. Only thing I had to reset was the clock. Everything else functioned normally (window, sunroof, radio station memory unaffected)
    Cool! You are lucky ... just the clock.
    Do you use ECO a lot?
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  • #44
    v35
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    Quote Originally Posted by jmc View Post
    Cool! You are lucky ... just the clock.
    Do you use ECO a lot?
    I turn ECO off at every start, why?

  • #45
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    Quote Originally Posted by v35 View Post
    I turn ECO off at every start, why?
    Trying to determine any correlation between eco usage and battery life ... not enough data points yet though hopefully folks will chime in here as battery events show up

  • #46
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    Quote Originally Posted by jmc View Post
    Trying to determine any correlation between eco usage and battery life ... not enough data points yet though hopefully folks will chime in here as battery events show up
    At my last dealer service they noted my AUX battery was low. I also noticed that ECO mode wouldn't work even if I did leave it on. When I changed the MAIN battery, ECO mode would work immediately, despite me not touching the AUX battery. I was hoping that the ECO mode would just stop working since I never replaced the AUX battery.

  • #47
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    Quote Originally Posted by v35 View Post
    I was hoping that the ECO mode would just stop working since I never replaced the AUX battery.
    Being sneaky?
    But then other demons may show up with a low / dead aux batt

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    Eco mode and AUX Battery.

    Quote Originally Posted by jmc View Post
    Being sneaky?
    But then other demons may show up with a low / dead aux batt
    Mine went about 7 months ago the ECO Stop/Start stopped working. after first cold snap here starting sounded weaker. So Yes both Batteries are AGM. I put a LiPo on the AUX its a motorcycle 14 class battery to be exact.. In book called a AUX14.

    A upgrades AGM is called a flat plate from Exide with 4 yr warranty and you can buy both at rockauto. Main was $165 and AUX was $70 shipped for $20 bucks to my door..

    If you do have a fault yes the dam dealer must reset it for a fee? But we all good now.. under $300 good for next 4 years...
    Michael G.

    Independent Amsoil Dealer - 800-956-5695 M-F 7am-7pm CST Referral #1339879

    Savannah, GA

    __________________________________________________ ______

    2014 CLA250 White Sport, Prem 1, MultiM, and Amsoil

  • #49
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    Quote Originally Posted by JustSynthetic.com View Post

    I put a LiPo on the AUX its a motorcycle 14 class battery to be exact.. In book called a AUX14.
    Wow LiPo in the cabin!? Gutsy ... If and when my aux goes I may stick with AGM ... lower probability of bulging or charge damage ...
    Dont want a Samsung battery event
    JustSynthetic.com likes this.

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