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The video above shows how to check for blown fuses in the engine bay of your 2009 Mercedes-Benz C300 and where the fuse box diagram is located. If your map light, stereo, turn signals, heated seats, headlights or other electronic components suddenly stop working, chances are you have a fuse that has blown out. Fuses should always be the first thing you check if your C300 is experiencing electrical difficulties because they are relatively easy to check and inexpensive to change. The more electronics your C300 has, the more fuses it has. Some Mercedes-Benzs have multiple fuse boxes in the engine bay, so be sure to find the fuse(s) in question. Some components may have multiple fuses, so make sure you check all of the fuses that are linked to the component in question.
If you need to replace a blown fuse in your C300, make sure you replace it with one that has the same amperage as the blown fuse. If checking and replacing the fuse for the component in question doesn't work, we recommend seeking assistance from a trusted professional mechanic. They should be able to figure out if the component needs to be replaced or if there is a short or some other problem with your C300.
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
Do you ever get into your friend's car and notice a bad smell? A dirty cabin air filter could be the culprit2009 Mercedes-Benz C300 Sport 3.0L V6
Help keep your car as responsive as you are by maintaining proper power steering fluid levels2009 Mercedes-Benz C300 Sport 3.0L V6
The burnt out tail light: classic reason for a cop to pull you over - change yours now2009 Mercedes-Benz C300 Sport 3.0L V6
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2009 Mercedes-Benz C300 Sport 3.0L V6
Dirty cabin air filter cause undue wear on your car's heater and AC and can cause bad odors2009 Mercedes-Benz C300 Sport 3.0L V6