Thank you all for tuning in to Super Mario Diagnostics!
Today will not be a diagnosis video. But instead a real time swap video meant to help those that encounter the same issue.
A bad secondary battery aka capacitor.
I hope this can benefit someone and can show how easy its done. It can be done faster if you don’t drop the bolt like I did đ
I hope you all enjoy, like, share, comment and subscribe!
Music source: https://youtu.be/os-bur8T3Js
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 Auxiliary Battery FIX – IN REAL TIME')){kind=link}
Hey, when I first got my 2017 C300, that message had popped up so I didnât take any chances and took it to MB and they replaced my starter battery. Two and a half months later, the message popped back on like every 2 days. Also, the eco doesnât seem to be working. The car doesnât turn off when I put my foot on the brake anymore but the light will be green. Any suggestions?
I have a mercedes c300 bluetec hybrid and it used to partially turn off while driving and save fuel, and now it has stopped completely! Please help!
Does this apply the the 2015 c63s thanks
Did it solve the issue
Thanks this was very informative! It's 15 minutes for those with the tools on hand and some experience removing and putting back the plastic panels, but for the rest of us it'll probably take an hour or two, including the time it takes to run the nearest Home Depot to get the tools.
Great thanks very helpful
excellent video , I did the job, but the code won t go ; guess I ll go to the garage fro that . thanks
If I donât have a code reader to clear the code , will it reset itself after installing this ?
Thanks brother. But how do u reset the warning message/code ?
Hi mario listen i have a 2018 mercedes-benz C300 2.0l i change the auxilary battery and the stop vehicle leave engine running still on
any idea what that could be if Iâm getting a red tripple battery symbol on the dashboard malfunction see owners manual . On my mercedes 2018 reg . C200 petrol ???? Is that the same thing I need to change like many of you done ? Iâm talking about auxiliary battery voltage converter?
Can this problem cause your battery to drain ?
Thank you for showing it to us, Super Mario! Saw it, understood it, did it! Consumers become fixers … need more of that. Herzlichen Dank from Zurich, Switzerland.
Hey Mario, thanks for them video. Question for you, or anyone knowledgeable about the subject. I have a 2016 C 300 MB, the START/STOP @ is on, but it does not work. I recently changed main battery, computer diagnostic did not detect an auxiliary problem -or any other for that matter, still START/STOP not working (function is on -button with a green letter A).
Hi, my 2016 c205 c220d music is messing around, there is no wound coming out from speakers, but I can see music playing on the screen..done a diagnosis with the xentry star and it says my command unit fan 2 malfunction and also my rear view camera doesn't come on anymore, and also says all four speakers have short circuit too..any ideas why or how to resolve.
Would really appreciate any ideas. Thanks
I love the video but I still donât understand the reset of the codes?
Great video. Just had this problem and your video was super helpful. Not to nit pick but, you installed the cover over top of the removable carpet đ
I like this dude. Good shit. Iâm subscribing
Thank you so much from Germany!
I needed about half an hour because simple mistakes and slow working, but it was really easy! In this half hour I saved about 400 Euros.
You made my saturday.
One word you don't want to hear from your doctor, or your mechanic. OOOOOoooooppppppps.
Cambie esa pieza pero sigue con el mismo cĂłdigo serĂĄ la baterĂa ? Mi carro es del 2016 y estamos en el 21 teniendo en cuenta que saliĂł en el 2015 ya tiene 6 aĂąos de vieja esa baterĂa
I got the same code but I changed the main battery and itâs gone
Thanks alot for the video Mario