The Mercedes E Class is known for its luxury and advanced features, but like any vehicle, it may encounter some common issues with certain components. One such issue involves the cigarette lighter fuse, which can affect the functionality of not only the lighter but also other devices using the same fuse. Understanding how to locate and replace this fuse is crucial for maintaining the vehicle’s convenience features. Whether you’re trying to charge an electronic device or use the lighter for its intended purpose, ensuring the fuse is in good working condition is imperative.
Why Know the Location?

Locating the cigarette lighter fuse is essential because without power, the lighter socket won’t function, which can be inconvenient especially if you rely on it for charging electronics. Identifying the fuse box and the specific fuse associated with the cigarette lighter in your Mercedes E Class can save you from unnecessary hassles.
Steps to Locate the Fuse
- First, familiarize yourself with your Mercedes E Class’s manual, which usually provides detailed information regarding the fuse box location and the corresponding diagrams. This will give you a clear starting point.
- The common location for the fuse box in most Mercedes E Class models is under the dashboard or in the engine compartment. Ensure that your vehicle is off and remove the necessary panels or covers to access the fuse box.
- Once you’ve located the fuse box, identify the cigarette lighter fuse based on the diagram provided in the manual. The fuse is typically labeled and can vary depending on your model year.
Replacing the Fuse
Replacing a cigarette lighter fuse is a straightforward process. First, ensure you have the appropriate replacement fuse. The manual should specify the correct amp rating required for the cigarette lighter.
- With your vehicle turned off and the fuse box accessible, gently remove the faulty fuse using a fuse puller or a pair of needle-nose pliers.
- Inspect the removed fuse. A blown fuse is usually identifiable by the broken wire or burnt appearance.
- Insert the new fuse into the correct slot and ensure it is seated properly. Double-check the fuse’s amp rating to avoid potential electrical issues.

Common Questions about Fuse Replacement
One frequently asked question is: Can replacing a fuse affect other electrical systems? Typically, if you replace the fuse with the correct amp rating, it should not impact other systems. However, using a wrong amperage can potentially cause damage to the vehicle’s electronics.
Do I need professional assistance for fuse replacement? While the process is simple, if you’re uncomfortable with handling vehicle electronics, seeking professional assistance is advisable.
Understanding how to locate and replace the cigarette lighter fuse can prevent inconvenience and ensure continual use of your Mercedes E Class’s electrical accessories. Always refer to the manual for your specific model to ensure proper handling. Regular maintenance and prompt replacement of faulty fuses will help keep your vehicle’s electrical system efficient and functional.