Mercedes-Benz C-Class Coupe 2014 Operating Instructions

To reset the service light, turn the ignition to position 1. Use the steering wheel buttons to navigate to the odometer screen. Press and hold the call button and then immediately press and hold the OK button. Navigate to the "Assist Plus" menu and select "Full Service" to reset.
Mercedes-Benz recommends using synthetic motor oil with a viscosity of 5W-40 or 0W-40 that meets the Mercedes-Benz specification MB 229.5 for the 2014 C-Class Coupe.
To replace the key fob battery, remove the mechanical key by sliding the release catch. Use the mechanical key to pry open the battery compartment. Replace the old battery with a new CR2025 battery, ensuring the positive side faces up. Snap the cover back in place.
The recommended tire pressure for the 2014 C-Class Coupe is typically 32 psi for the front tires and 35 psi for the rear tires. Always check the sticker inside the driver’s door for specific guidance.
To pair your phone, activate Bluetooth on your phone and navigate to the 'Connect Device' menu in the car's COMAND system. Select 'Search for Bluetooth Devices', find your phone, and confirm pairing on both devices.
The check engine light can illuminate for various reasons, such as a loose gas cap, faulty oxygen sensor, or catalytic converter issues. It's best to use an OBD-II scanner to diagnose the specific error code.
Brake pads typically need to be replaced every 30,000 to 70,000 miles. However, this can vary based on driving habits and conditions. Regular inspections are recommended to determine wear.
To update the navigation system, visit the Mercedes-Benz website or a dealership to purchase the latest map update. Follow the instructions provided with the update, usually involving the use of a USB stick or SD card.
If the air conditioning is not working, check the refrigerant levels and ensure the AC compressor is functioning. If the problem persists, it may require a professional diagnostic at a service center.
To replace a headlight bulb, open the hood and locate the back of the headlight assembly. Remove the cover and disconnect the electrical connector. Take out the old bulb and replace it with a new one, ensuring not to touch the glass with your fingers. Reattach the connector and cover.