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Lost all electrical power inside

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Old Jun 9, 2021 | 10:29 AM
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C300
Lost all electrical power inside

I have a 2010 c300 that starts up with no problem but all power inside is lost as far as seat control , Radio , AC , Headlights , wipers , Etc There is one headlight that comes on automatically when i start it up which is very confusing since the power switch to the lights does not work . I live in nyc where most mechanics want to rip you off so ive been told to replace the gear shifter another guy told me to replace modules , and one said it can be a error with my transmission . Seems like they dont know either and want to just throw parts at it until the problem is fixed . I went to autozone i was told it most likely my aux battery .i dont know what to think at this point !!! . I am able to put the car in limp mode but i cant see my speedometer and gas meter . I was able to unlock the car with the remote when the issue first started now the remote does not work .all electronics in the car are dead Seems like power is being drained . Sorry for the long post just wanted to give as much details as possible . Any ideas ? Can somebody please help !!!
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Old Jun 9, 2021 | 04:53 PM
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W205 2015
So you basically visited all mechanics except your dealer. I recommend you let your dealer have a look at it and give you a quote, at least for comparison reasons.
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Old Jun 9, 2021 | 05:48 PM
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Would i be able to get the car to the dealer in limp mode ? The dealer is about 2 hours from where i am located . And i was advised to not drive that far while the car is experiencing this issue . Would i damage anything else if i was to risk it and drive that far?
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Old Jun 9, 2021 | 11:51 PM
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2021 c300 Cab. Arrived 7/28/21 . 24 GLE 450e.
Originally Posted by Mweeks5291
Would i be able to get the car to the dealer in limp mode ? The dealer is about 2 hours from where i am located . And i was advised to not drive that far while the car is experiencing this issue . Would i damage anything else if i was to risk it and drive that far?
why don’t you have it towed? Do you have insurance?
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Old Jun 10, 2021 | 09:43 AM
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Yes i do. Its look like thats the best option at this point . Nobody knows what this issue is related to ?
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Old Jun 10, 2021 | 01:26 PM
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2018 C43
Originally Posted by Mweeks5291
Yes i do. Its look like thats the best option at this point . Nobody knows what this issue is related to ?
Limp mode could be anything, but usually associated with MAF sensor failing. Your other problem could be fuses.

Personally I would post this on w204 section.
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