Mercedes-Benz C-Class: Why Doesn't My Cigarette Lighter Work?

For many drivers, a non-working cigarette lighter is more than a minor annoyance. Fortunately, the repair is quite simple in most cases of the Mercedes-Benz C-Class.

By Kate Halse - May 13, 2015
Contributors: SmokyMtnBenz

This article applies to the Mercedes-Benz C-Class w204 (2007-2014).

You jump into your car only to find that there's no power to the cigarette lighter. The most common culprit is a burned out fuse. Other causes may include change that has wedged itself too close to the lighter, or a spilled beverage. Regardless of the underlying cause, you'll want to get the outlet up and running again.

Materials Needed

  • Fuse (#71)
  • Small pliers or old credit card

Step 1 – Check or replace the fuse

The fuse is one of the most common reasons for a cigarette lighter to stop working. In most cases, the fuse is burned out. You can find the cigarette lighter fuse (#71) in the trunk, on the right-hand side. The fuse is located on the right side of the fuse box.

Figure 1. Check the fuse.

Pro Tip

Once you've replaced the fuse, you'll need to activate your car's ignition to activate it.

Step 2 – Look for loose change

Loose or stuck change could cause the cigarette lighter to stop working. You may need a small pair of pliers (or the sharp edge of an old credit card) to successfully retrieve the loose change. If the lighter still isn't working after you've removed the change, check to see if the circuit has been shorted.

Figure 2. Check for loose change.

Step 3 – Clean up any spills

It's easy to spill liquid around the car's cigarette lighter. Depending on the amount of liquid spilled, this could cause a short circuit. If you spill liquid around the lighter, clean it up as soon as possible. Check the circuit and fuse if the lighter fails to work.

Figure 3. Clean up spilled liquid.

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