no electrical power, no nothing??
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Joined: Apr 2019
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2009 s550 4 matic
no electrical power, no nothing??
hey...looking for some help, I've read several threads about similar issues, but I will admit I am confused. here's the history and current situation for my 2009 S550 4matic
any suggestions on...
Thanks in advance
- auxilary battery light came on and I replaced auxiliary battery located under drivers side dashboard about 3 years ago and all was good
- 3 months ago I replaced the main battery located in the engine compartment and all was good no issues, car started and drove fine
- let car sit for approximately the last month and went to start it and nothing, no lights, no clicks, no nothing...not sure why the battery would drain that fast as I have other vehicles that have sat longer than that with no issues
- I assumed main large battery was dead for so disconnected battery from the car and charged it using a slow charge and when the charger said it was done I reconnected and still nothing
any suggestions on...
- should I remove and charge the auxiliary?
- is there somewhere else I should be looking?
- and last but not least any thoughts on why the main battery drained in the first place?
Thanks in advance
