The cigarette lighter, or auxiliary power outlet, in a 2014 Mercedes E350 is a convenient source of power for various electronic devices. When it stops working, the most common culprit is a blown fuse. This article provides a detailed guide to locating, replacing, and troubleshooting the 2014 Mercedes E350 cigarette lighter fuse, ensuring uninterrupted power access for your essential devices.
Benefits of a Functional Cigarette Lighter Outlet
- Powering Mobile Devices: Charging smartphones, tablets, and other USB-powered gadgets.
- Operating Accessories: Connecting GPS units, dash cams, and portable air compressors.
- Jump Starting Assistance: In some cases, used with a compatible jump starter through the outlet.
- Convenience: Providing a readily available 12V power source inside the vehicle.
Understanding the Fuse and Wiring Diagram
The cigarette lighter circuit in the 2014 Mercedes E350 is protected by a fuse, typically located in one of the fuse boxes. Consult the owner’s manual for the exact location of the “auxiliary power outlet” or “cigarette lighter” fuse. A typical wiring diagram shows the power flow from the battery, through the fuse, to the outlet. Understanding this flow is crucial for troubleshooting electrical issues.
Generally, the fuse box locations are:
- Engine Compartment: A fuse box is located under the hood, usually near the battery.
- Interior (Driver’s Side): Often found on the side of the dashboard, accessible when the driver’s door is open.
- Rear Cargo Area: Some models have a fuse box in the trunk or rear cargo area.
Practical Application
- Locate the Fuse Box: Refer to your owner’s manual to identify the exact location of the fuse box that houses the cigarette lighter fuse.
- Identify the Fuse: The owner’s manual will also provide a diagram showing which fuse corresponds to the cigarette lighter. The fuse may be labeled as “Cigar Lighter,” “Auxiliary Power Outlet,” or similar.
- Inspect the Fuse: Use a fuse puller or small pliers to carefully remove the fuse. Examine it closely. If the thin wire inside the fuse is broken, the fuse is blown.
- Replace the Fuse: Replace the blown fuse with a new fuse of the exact same amperage rating. Using a fuse with a higher amperage rating can damage the electrical system.
- Test the Outlet: Insert a known-good device into the cigarette lighter outlet to verify that it is now working.
1. Troubleshooting Common Issues
- Outlet Still Not Working: If replacing the fuse doesn’t solve the problem, check the wiring connections to the outlet for loose or damaged wires.
- Repeatedly Blowing Fuses: This indicates a short circuit in the wiring or a faulty device plugged into the outlet. Investigate the wiring or the device causing the issue.
- Incorrect Fuse Amperage: Ensure the replaced fuse matches the factory-specified amperage. Using an incorrect amperage can lead to problems.
2. Tips for Maintaining Your Vehicle's Electrical System
- Use Quality Fuses: Opt for fuses from reputable brands to ensure reliability.
- Avoid Overloading the Outlet: Be mindful of the power draw of devices connected to the cigarette lighter outlet. Avoid using multiple high-power devices simultaneously.
- Regular Inspections: Periodically check the condition of the cigarette lighter outlet and wiring for any signs of damage.
FAQs
-
Q: What amperage fuse does the 2014 Mercedes E350 cigarette lighter use?
A: Consult your owner’s manual for the specific amperage. It’s typically a 15-20 amp fuse.
-
Q: Where can I purchase replacement fuses?
A: Replacement fuses are available at most auto parts stores.
-
Q: Can I use a different amperage fuse if I don’t have the exact one?
A: No. Always use the exact amperage fuse specified in your owner’s manual.
-
Q: What if the cigarette lighter outlet is damaged?
A: A damaged outlet might require replacement by a qualified mechanic or auto electrician.
-
Q: Is there a way to test the outlet for power?
A: Yes, a multimeter can be used to test for voltage at the outlet contacts.
Conclusion
Maintaining a functional cigarette lighter outlet in your 2014 Mercedes E350 is essential for powering various electronic devices. Understanding the location of the 2014 mercedes e350 cigarette lighter fuse and knowing how to replace it can save you time and money. Remember to always consult your owner’s manual for specific information about your vehicle and prioritize safety when working with electrical systems.
