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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.
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2009 Mercedes-Benz C300 Sport 3.0L V6
Don't be caught in the fog with burnt out fog light bulbs2009 Mercedes-Benz C300 Sport 3.0L V6
Coolant hoses wear out over time and need to be replaced - check 'em early and often2009 Mercedes-Benz C300 Sport 3.0L V6
There's no reason to check the washer fluid level without adding some - see how to do it here!2009 Mercedes-Benz C300 Sport 3.0L V6
White light when you back up - yup, they burn out and you can replace them with bright LEDs2009 Mercedes-Benz C300 Sport 3.0L V6
Is the clock in your car ahead or behind? Learn how to set it here!2009 Mercedes-Benz C300 Sport 3.0L V6