Mazda 3 4-Door 2016 Scheduled Maintenance Manual
![Mazda 3 4-Door 2016 manual cover](/images/04aee4331999f50640e16d3a/thumbs/thumb175x175.webp)
To change the headlight bulb, first open the hood and locate the back of the headlight assembly. Remove the electrical connector, twist the bulb counterclockwise, and then pull it out. Insert the new bulb, twist it clockwise to secure, and reconnect the electrical connector.
The recommended oil type for the 2016 Mazda 3 4-Door is SAE 0W-20, which provides optimal performance and fuel efficiency.
To reset the TPMS, inflate all tires to the recommended pressure. With the ignition on, press the TPMS reset button located under the dashboard until the TPMS indicator blinks twice.
To connect your smartphone, turn on the Bluetooth feature on your phone. Then, in the Mazda Connect system, go to Settings > Connectivity > Bluetooth, and select 'Add New Device'. Follow the on-screen prompts to pair your phone.
If the engine overheats, immediately turn off the air conditioning and turn on the heater to maximum heat and fan setting. Pull over safely, turn off the engine, and wait for it to cool down before checking the coolant level. Do not open the radiator cap while the engine is hot.
Brakes should be inspected at least once a year or every 12,000 miles. This includes checking the brake pads, rotors, and brake fluid level.
To replace the cabin air filter, open the glove box and remove the dampener arm. Squeeze the sides of the glove box to drop it down completely. Remove the filter cover, slide out the old filter, and install the new one with the airflow direction arrow pointing down.
To update the navigation system, remove the SD card from the vehicle's card slot and insert it into a computer. Use the Mazda Toolbox software to download and install updates onto the SD card, then reinsert the card into the vehicle.
The check engine light can illuminate for various reasons, including a loose gas cap, a faulty oxygen sensor, or issues with the catalytic converter. It's best to use an OBD-II scanner to diagnose the specific cause or consult a professional mechanic.
To improve fuel efficiency, ensure regular maintenance such as oil changes and air filter replacements. Keep tires properly inflated, avoid excessive idling, and drive at steady speeds to maximize MPG.