How to reset the maintenance reminder for the 2018 E300?
2 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.
