Mercedes-Benz C-Class Sedan 2021 Operator's Manual

To reset the tire pressure monitoring system, turn on the ignition without starting the engine. Use the steering wheel controls to navigate to the 'Service' menu, select 'Tire Pressure', and then 'Reset'. Follow the prompts to confirm.
The recommended oil type for the 2021 Mercedes-Benz C-Class Sedan is synthetic oil with a viscosity grade of 0W-40 or 5W-40, meeting the MB 229.5 specification.
Activate Bluetooth on your smartphone. On the vehicle's multimedia system, go to 'Telephone', then 'Connect Device'. Select your phone from the list and confirm the pairing code.
If the check engine light comes on, it's advisable to check for any loose gas caps first. If the light remains on, schedule a diagnostic service with a certified Mercedes-Benz technician to identify the issue.
It's recommended to replace the air filter every 20,000 miles or every 2 years, whichever comes first. However, driving conditions can affect this interval.
Regularly check brake fluid levels, and inspect brake pads and rotors every 10,000 miles. Replace brake pads as needed and flush brake fluid every 2 years.
To update the navigation system, visit the Mercedes-Benz website to download the latest map updates onto a USB drive. Insert the USB into the vehicle's port and follow the on-screen instructions to install the update.
The recommended tire pressure for the 2021 C-Class Sedan is typically 32 PSI for both front and rear tires. Always check the placard on the driver’s side door jamb for precise specifications.
If the electronic release is not working, you can manually open the trunk by using the mechanical key located inside the key fob. Insert it into the trunk lock and turn to open.
To replace a headlight bulb, first turn off the ignition and open the hood. Remove the headlight cover by releasing the clips, then disconnect the electrical connector. Remove the old bulb and replace it with a new one, ensuring it is securely fitted before reattaching the cover.