How to Reset the Service Light on the Mercedes E-Class W211

To reset the service light on the Mercedes E-Class W211, start by turning the key clockwise to the second position and note the message on the service display. To reset it, turn the key counterclockwise to the first position, press the button on the lower left of the left steering wheel spoke to go to the speedometer screen, press the button on the left of the dashboard 3 times until the text "ub." (hidden menu) appears, press the up arrow to go to the "service menu" screen, press the "-" button on the right steering wheel spoke until the text "confirmation" appears, press the button on the lower left of the left steering wheel spoke, press it again on the first text to confirm, and the display will show "service required". Now press the button on the upper left of the left steering wheel spoke to return to the initial menu (with the initial mileage), turn the key counterclockwise and remove it. Reinsert the key, turn it clockwise to the second position, and notice that the service message does not appear.

Return it to the first position by turning it counterclockwise, press the button on the left of the dashboard 1 time and the text "ub." will appear, press the button on the upper left of the left steering wheel spoke to display the speedometer, press the up arrow button until the new service mileage appears; finally, press the button on the lower left of the left steering wheel spoke to display the text "ub." again and turn the key counterclockwise to turn everything off, and you can remove it.