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Auxiliary Battery failure

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Old 06-19-2018, 10:57 PM
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2015 c300 4matic with sports package
Auxiliary Battery failure

Hi guys, I just got the 'Auxiliary Battery Failure' message today in to onboard display. Going to the dealer next friday to get this addressed under warranty. I wonder how much this would cost in an out of warranty repair. They said it is 1.5 hours.

My car is a 2015 C300 with 42000 KM.
Old 06-20-2018, 12:23 AM
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W205 C250
The component to be replaced is a voltage converter that costs about 400 US. It has a high failure rate and has been superseded several times. It resides under the carpet on the firewall in the passengers footwell and can be replaced in approx 30 mins. Luckily you still have warranty I don’t and have applied for a goodwill replacement as my vehicle has only 30 k on it. A remanufactured component can be purchased from parts. com for about 120US
Old 06-20-2018, 11:35 AM
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Funny thing is I had the same error pop up yesterday when on my way to the dealer for a trackpad replacement. Pretty timely if you ask me

Anyway I had it replaced while the car was in the shop and all is well.

The part # as on my invoice is 205-905-34-14
Old 06-20-2018, 12:25 PM
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Originally Posted by cidtek
Funny thing is I had the same error pop up yesterday when on my way to the dealer for a trackpad replacement. Pretty timely if you ask me

Anyway I had it replaced while the car was in the shop and all is well.

The part # as on my invoice is 205-905-34-14
What was wrong with the track pad? At one point I was feeling that the click for the favorite was weird, but I think its fine now.
Old 06-20-2018, 12:26 PM
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2015 c300 4matic with sports package
Originally Posted by Greg52
The component to be replaced is a voltage converter that costs about 400 US. It has a high failure rate and has been superseded several times. It resides under the carpet on the firewall in the passengers footwell and can be replaced in approx 30 mins. Luckily you still have warranty I don’t and have applied for a goodwill replacement as my vehicle has only 30 k on it. A remanufactured component can be purchased from parts. com for about 120US

Thanks, its good to know. I hope this car and all the accessories won't start to fall appart in the upcoming months.....
Old 06-20-2018, 12:55 PM
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Originally Posted by Simon Guertin
What was wrong with the track pad? At one point I was feeling that the click for the favorite was weird, but I think its fine now.
Exactly the same problem with the Favorites button. It randomly would feel locked out with no pattern regarding cabin temperature etc. If it happens at all get it fixed as it will keep coming back.
Old 06-20-2018, 02:00 PM
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Same auxiliary battery failure happened to me 2 weeks ago! Weird timing, I guess their lifespan is almost out.
Old 12-22-2019, 11:17 PM
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mercedes c class 200
auxillary battery faliure

i had a message Stop vehicle shift To P Leave engine running my car C200 petrol.india
the above message with a battery symbol on top .
can some body explain what it is . it went off on its own but reappeared after two day and f again went off after switching of the engine
obliged if some one can explain what it means the manual i cannot find any thing. when a google i found that it is due auxiliary battery failure.

Last edited by capt vasudev; 12-22-2019 at 11:20 PM. Reason: mistakes
Old 12-23-2019, 12:02 AM
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2016 C300 Luxury
Originally Posted by capt vasudev
i had a message Stop vehicle shift To P Leave engine running my car C200 petrol.india
the above message with a battery symbol on top .
can some body explain what it is . it went off on its own but reappeared after two day and f again went off after switching of the engine
obliged if some one can explain what it means the manual i cannot find any thing. when a google i found that it is due auxiliary battery failure.
https://mbworld.org/forums/c-class-w...lfunction.html
Old 12-23-2019, 07:31 AM
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W205 2015
Originally Posted by capt vasudev
i had a message Stop vehicle shift To P Leave engine running my car C200 petrol.india
the above message with a battery symbol on top .
can some body explain what it is . it went off on its own but reappeared after two day and f again went off after switching of the engine
obliged if some one can explain what it means the manual i cannot find any thing. when a google i found that it is due auxiliary battery failure.
Hi, I also have a C200. I got this message several times until the battery died so I replaced it. Please see attached picture. Sometimes I still get this message maybe because I dont drive the car much only on Weekends. Also I installed 2 door projectors I guess they eat some power before starting the car.

Old 12-23-2019, 08:00 AM
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mercedes c class 200
auxillary battery faliure

thanks i am uploading the image of the message that i got on dashboard . the best part is i went through the complete manual in it no word of this message
when i googled it said that this is due to the auxiliary battery failure and not to worry much. I do not know whether i have battery or a voltage converter with capacitor
thanks for the reply my car is petrol C200 1915 model india .my car also doesnt run much only on weekend.
.

Old 12-23-2019, 08:28 AM
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W205 2015
Originally Posted by capt vasudev
thanks i am uploading the image of the message that i got on dashboard . the best part is i went through the complete manual in it no word of this message
when i googled it said that this is due to the auxiliary battery failure and not to worry much. I do not know whether i have battery or a voltage converter with capacitor
thanks for the reply my car is petrol C200 1915 model india .my car also doesnt run much only on weekend.
.
Wow 1915 model 😂
If there is a battery mulfunction then you will get a battery malfunction message on your dashboard. Stop vehicle keep engine running is related to the main battery. Mainly because you don't drive the car much.

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