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  1. CLA Problems/Issues/Complaints
    Hi Can I replace auxiliary battery myself? I know where is it. I wonder only about reseting something after power off the auxiliary battery. Should I put 12V backup during changing this small battery ? Maybe the main battery is back uping settings during swapping old and new auxiliary battery...
  2. Mercedes-Benz CLA 250
    So I got this message on my 2018 CLA 250 and it appeared twice on my dashboard -I cleared it to ignore it and now it doesn’t appear again -does that mean it was just a fluke error or what?
  3. CLA Problems/Issues/Complaints
    Hi All Does anyone know the reason why my CLA45 isn’t starting up & the boot opens once I turn the ignition? also all dashboard lights are flickering would it be the main battery or the auxiliary battery?? Or another issue thanks I’m advance
  4. CLA General Discussion
    Over the last few weeks, I accrued a gamut of error messages on my 2014 CLA250 all related to front end lighting. Additionally, I got an Auxiliary Battery Malfunction error. My other messages include "Check Low Left Beam", "Check Low Right Beam" as well as front turn signal warnings and Daytime...
  5. Mercedes-Benz CLA 250
    Has anyone experienced failing their smog test after replacing the AUX Battery? Three weeks ago I get a prompt from my 2016 CLA250 indicating that the Aux Battery has failed. I went to the dealership and got it replaced through my warranty. That went well and I went about my business. 2 weeks...
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