How to reset the maintenance reminder for the 2018 E300?
4 Answers
Here are the steps to reset the maintenance light for the Mercedes-Benz E300: 1. Turn the ignition to position 1, then simultaneously press the call button and OK button for 5 seconds; 2. A menu will appear, select ASSTST-PLUS maintenance code and press OK; 3. Choose complete maintenance with OK button, then confirm complete maintenance with OK button; 4. Confirm with OK, then turn off the ignition. Additional information: The maintenance light is a predetermined service interval reminder. When the vehicle reaches the scheduled maintenance mileage, the light will illuminate to indicate service is required. For passenger cars, maintenance is typically needed every 5,000 kilometers.
I just dealt with the maintenance reminder issue on my Mercedes-Benz E300, and the method was actually quite straightforward. First, insert the key and turn it to the "ON" position, but don't start the engine—just let the dashboard light up. Then, use the scroll wheel on the left side of the steering wheel to navigate into the menu, find the "ASSYST PLUS" section, where there's a maintenance option. Select reset and confirm, and the whole process takes just a few seconds. Once the light goes off, the system will recalculate the next maintenance cycle, which is much more reassuring than driving with the light on. If you don't reset it, that little light keeps flashing, which is distracting and annoying, and you might even miss the regular maintenance schedule. I personally check the oil every six months, which can significantly extend the engine's lifespan. If you can't find the menu, remember to check the owner's manual or try restarting the key. In short, manually resetting it saves time and money—don't wait until you have to go to the dealership.
After each maintenance of my Mercedes-Benz E300, I personally handle the reset procedure. Sitting in the driver's seat, turn the key to the second position, at which point the steering wheel buttons become functional. Navigate to the system settings on the display screen, scroll to the maintenance section, and press the reset button. After resetting, the dashboard will flash a confirmation light, which is particularly intuitive. I recommend doing this while parked in the garage to avoid risks associated with a hot engine. Why is resetting important? Not only can warning lights interfere with driving visibility, but they can also affect the accuracy of the next maintenance reminder. Based on my own experience, Mercedes-Benz's system is very intelligent; timely resets ensure smoother vehicle operation and help prevent minor malfunctions. If the buttons respond slowly, it might be due to unstable battery voltage, in which case a quick charge should resolve the issue.
Resetting the maintenance reminder on the Mercedes-Benz E300 is quite simple: turn the key to the first position without starting the engine, use the steering wheel buttons to enter the settings menu, select the maintenance item, and confirm the reset. Once done, the light will go off and won't keep bothering you. Driving the car for a longer time and handling maintenance on schedule makes for a smoother experience. Once, I forgot to reset it, and when I went for maintenance, the car displayed the wrong mileage, causing me to make an extra trip to the shop. Now I remember the method well and manually operate it each time to save trouble.
