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This video shows you how to jump start a dead battery in your 2009 Mercedes-Benz C300. If you get into your C300, turn the key, and your car doesn't start (you may hear nothing or a clicking sound from the engine bay), you have a dead battery and need a jump-start. Check to see if you left your headlights or an interior light on and turn the switch off. Assuming that you have a pair of jumper cables, a pair of safety glasses and a friend to give you a jumpstart, the video above will show you where to connect the cables (and in what order!) for your C300. Once you are finished reviving a dead car battery in your C300, make sure you drive it for at least 5 minutes before turning it off so your battery isn't dead the next time.
So what's up with the safety glasses? There is a small possibility of a battery exploding during the charging process if you don't connect the cables properly (causing a spark) and there is a bunch of hydrogen gas around the battery (car batteries emit hydrogen gas when they discharge) - this is much more of an issue with cars that haven't been driven for a long time than if you drive your C300 regularly and simply forgot to turn your lights off.
If you have an electrical component that doesn't work, try replacing the fuse first2009 Mercedes-Benz C300 Sport 3.0L V6
If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber2009 Mercedes-Benz C300 Sport 3.0L V6
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2009 Mercedes-Benz C300 Sport 3.0L V6
Carmakers are hiding interior fuse boxes all over the place these days - see how to check your interior fuses here!2009 Mercedes-Benz C300 Sport 3.0L V6
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2009 Mercedes-Benz C300 Sport 3.0L V6
Because you have to start somewhere2009 Mercedes-Benz C300 Sport 3.0L V6