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2010 S550 battery / starting problems.

2045 Views 2 Replies 3 Participants Last post by  Skylaw
To begin with; red outline of battery came on dash display. Found Large Battery (AG94) under hood, pass side, charged it, battery message went away. Several days later came on again. Shut off engine, charged battery, car would not start. Battery showing full charge, engine does not turn over, nothing; then batttery charger shows battery needs recharging!!
Also, I have looked in trunk, both sides and cannot find a second battery, some have said this model and year had only one battery, is that true, and if not where is the other one located?? Thanks for any help. 1stS550
1 - 1 of 3 Posts
Looks like bad battery. How old is the battery? When you try to jump start with another vehicle, you need to wait for a 10-20 min for the with the other vehicle running to charge your battery fully before you attempt to start your car. But, in the end, looks like bad battery not able to hold charge.
1 - 1 of 3 Posts
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