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Auxiliary Battery msg

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Old Dec 16, 2016 | 08:12 AM
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W205 C200 Sport Premium Plus. October 2018. 1497cc with 48 volt battery eq
Auxiliary Battery msg
Could someone tell what this error message on dash means "Auxiliary Battery Malfunction"
Thanks
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Old Dec 16, 2016 | 10:48 AM
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W205 C200 Sport Premium Plus. October 2018. 1497cc with 48 volt battery eq
Originally Posted by Plutoe
Yep, replace the aux battery and get on with your life!!
Yes obviously, but what is the Aux Battery for and where is it?
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Old Dec 16, 2016 | 01:01 PM
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W205 C200 Sport Premium Plus. October 2018. 1497cc with 48 volt battery eq
Originally Posted by Plutoe
Already searched but results are too general and not specific to W205.
So where is this battery located?
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Old Dec 16, 2016 | 03:24 PM
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C 180 w205
My car didn't run for a while as i have a second car.It is winter here,so very cold and a few days ago i started the engine to get it running from time to time.
At start i got the same message but while running the engine the warning disappeared.
I did a search on the web and looks like the w205 doesn't have an auxiliary battery so the warning could be caused by other things.
There's a topic https://mbworld.org/forums/c-class-w205/633845-auxiliary-battery-malfunction.html
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Old Dec 17, 2016 | 08:27 AM
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W205 C200 Sport Premium Plus. October 2018. 1497cc with 48 volt battery eq
Originally Posted by christyan78
I did a search on the web and looks like the w205 doesn't have an auxiliary battery so the warning could be caused by other things.
There's a topic https://mbworld.org/forums/c-class-w...lfunction.html
Thanks, had already seen that post, not sure if it's correct or not.
Fault message has gone from Red to White, whatever that means.
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Old Jan 12, 2017 | 02:09 PM
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W205 C200 Sport Premium Plus. October 2018. 1497cc with 48 volt battery eq
Aux battery dash message disappeared but took to dealers anyway. It appears the message means a capacitor associated stop start function faulty, they replaced capacitor.
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Old Jan 12, 2017 | 04:29 PM
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W205 C250BT
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Old Feb 16, 2017 | 10:20 PM
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Mercedes benz w205
Please tell me where is this capacitor located? 😞
Last edited by Jooya; Feb 16, 2017 at 10:23 PM.
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Old Jul 4, 2017 | 06:47 PM
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benzw205
W205 auxiliary battery
Originally Posted by christyan78
My car didn't run for a while as i have a second car.It is winter here,so very cold and a few days ago i started the engine to get it running from time to time.
At start i got the same message but while running the engine the warning disappeared.
I did a search on the web and looks like the w205 doesn't have an auxiliary battery so the warning could be caused by other things.
There's a topic https://mbworld.org/forums/c-class-w...lfunction.html


Hello,

So finally, does the W205 have an auxiliary battery ?

How much does it cost ?

Thank you.
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Old Jul 4, 2017 | 08:18 PM
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2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
Originally Posted by benzw205
Hello,

So finally, does the W205 have an auxiliary battery ?

How much does it cost ?

Thank you.
No battery. Has a capacitor/voltage converter
Part number2059053414
Last edited by dieseldoc; Jul 4, 2017 at 08:23 PM.
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Old Jul 4, 2017 | 08:30 PM
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Located behind fake floor on pass front carpet.
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Old Jul 5, 2017 | 01:03 PM
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Originally Posted by benzw205
Hello,

So finally, does the W205 have an auxiliary battery ?

How much does it cost ?

Thank you.
could you perhaps find a few more posts to duplicate the question in and irritate everyone just that bit further?
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Old Jul 5, 2017 | 01:09 PM
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Originally Posted by ManiacGT
could you perhaps find a few more posts to duplicate the question in and irritate everyone just that bit further?
Agree, quite annoying. Especially when the answer is already in the thread!
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