
NFC function (Near Field Communication), which is the interconnection between the phone and the vehicle, enables the phone to function as a car key, allowing the opening of doors and starting the Mercedes-Benz E-Class, as well as back-to-back data transmission between electronic devices (without the need to turn on Bluetooth). 1. Introduction: NFC stands for Near Field Communication, a short-range wireless communication technology initiated by Philips and jointly promoted by renowned manufacturers such as Nokia and Sony. 2. Usage scope: NFC devices can be used as contactless smart cards, smart card reader terminals, and device-to-device data transmission links.

My Mercedes-Benz E-Class is equipped with NFC functionality, which I absolutely love using when driving. The setup is straightforward: First, download the Mercedes me App on your phone, register an account, and link it to your vehicle. Then, enable the digital key feature in the App. To unlock the door, simply hold your phone near the B-pillar on the driver’s side, and the sensor will detect it and automatically unlock. Starting the engine is even quicker: after sitting in the driver’s seat, place your phone in the designated spot inside the center armrest to ignite the engine. The whole process eliminates the need for a physical key, making it super convenient. Just remember to keep your phone battery charged, as low battery might affect sensitivity. The App also includes a help guide with video tutorials for troubleshooting. This feature is especially handy when carrying packages or during rainy weather. You can also manage multiple authorized devices through the App, allowing the whole family to share access. Don’t forget to regularly update the system software to ensure NFC compatibility and security. In daily use, NFC integrates seamlessly with the keyless entry system, reducing the hassle of fumbling for keys and delivering a smooth overall experience.

As someone who has driven several Mercedes-Benz models, I'm quite familiar with the NFC function in the E-Class. The first step is activation: enter the vehicle settings through the central control screen, select the digital key option, then use the mobile app to scan the QR code for binding. To unlock the doors, simply place your phone near the B-pillar or rearview mirror area for one or two seconds; to start the car, place the phone on the designated induction area on the front center console. Technically, NFC is based on near-field communication, offering stable pairing but requiring Bluetooth assistance for enhanced signal connection. There are many daily benefits, such as not panicking when you forget your keys—just use your phone. Precautions include avoiding storing your phone with metal objects to prevent interference and ensuring a stable network connection during the initial setup. If the function occasionally malfunctions, checking app permissions or restarting the car's system usually resolves the issue. Mercedes-Benz has also integrated anti-theft mechanisms with strong encryption protection, allowing remote removal of old devices via the app to prevent misuse. Regular vehicle software updates are crucial for NFC compatibility, and the overall design effectively balances security and convenience.

I recently bought a Mercedes-Benz E-Class, and the NFC feature is genuinely easy to use. The setup process isn't complicated: download the official app, add vehicle information, enable the digital key, and follow the prompts to enter the verification code. When using it, just touch your phone to the door handle to unlock the car; starting the engine is also effortless—once you're seated, placing your phone in the right position automatically triggers it. For a new driver like me, the tutorials in the app were a huge help, with simple and intuitive operations. The best part is fewer instances of forgetting keys, as I always have my phone with me. However, be mindful not to let your phone battery get too low, as it might cause instability, and ensure the phone is placed accurately on the sensing area without being too far away. The Mercedes app also offers reminder settings to help manage usage, making it 100% beginner-friendly. This feature eliminates the hassle of rummaging through bags for keys, especially useful on rainy days or when running errands.


