Help! Can't Reset Service Indicator
Thread Starter
Super Member
Joined: May 2003
Posts: 967
Likes: 77
From: Long Island, New York
2018 E400 4matic Wagon
Help! Can't Reset Service Indicator
I have the instructions for resetting the service indicator and I've done this successfully before, but I seem to be stuck this time. I can't get into the workshop menu. When I'm in the trip menu and I hold the back button for 1.5-2 seconds and then press on the navigation pad, I don't get the workshop menu with "vehicle data," "dynomometer test," "lining change mode, "ASSYST PLUS" and "head-up display." What am I doing wrong? When I start the car or put the ignition into position "2" I get a display that reads "Service A3 Due."
Thread Starter
Super Member
Joined: May 2003
Posts: 967
Likes: 77
From: Long Island, New York
2018 E400 4matic Wagon
Out Of Control!!
Joined: Nov 2018
Posts: 11,403
Likes: 5,324
From: San Francisco Bay Area
2019 C63CS
You are likely in the wrong ignition position. I always get confused. With the foot off the brake you can press the engine start once, and then another time. I don't remember which of them is actually position 1. But try first with pressing it once. If that doesn't work, press it again. At least that was my issue I had in the past, other than forgetting to select trip and total distance.
Thread Starter
Super Member
Joined: May 2003
Posts: 967
Likes: 77
From: Long Island, New York
2018 E400 4matic Wagon
You are likely in the wrong ignition position. I always get confused. With the foot off the brake you can press the engine start once, and then another time. I don't remember which of them is actually position 1. But try first with pressing it once. If that doesn't work, press it again. At least that was my issue I had in the past, other than forgetting to select trip and total distance.
MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
Likes: 905
From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Make sure total mileage is displayed
Hold home button for several seconds and then press scroll button - maybe twice
Vehicle data, Dynameter test, Brake pad replacement and Assyst Plus come up
Scroll down to Assyst Plus
Switch on ignition to activate
Scroll back to Service data, full service and scroll down to Full Service
Confirm full service
Grade Oil 229.5
Yes
Confirm
you are now reset
Hope this helps
Thread Starter
Super Member
Joined: May 2003
Posts: 967
Likes: 77
From: Long Island, New York
2018 E400 4matic Wagon
I don't know how I did it but it worked! I think the key is when you're in the trip menu and hit the back button (step 5 in Konigstiger's post) to very quickly press the center button on the navigation pad. That gets you into the workshop menu. If you're not in the workshop menu, start all over again. It's not easy, and it's likely to take several tries. Many thanks to those who responded to my post.
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MBWorld Fanatic!
Joined: Apr 2006
Posts: 4,694
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From: Dallas-Ft.Worth,TX
2016 E350 Sport
I don't know how I did it but it worked! I think the key is when you're in the trip menu and hit the back button (step 5 in Konigstiger's post) to very quickly press the center button on the navigation pad. That gets you into the workshop menu. If you're not in the workshop menu, start all over again. It's not easy, and it's likely to take several tries. Many thanks to those who responded to my post.
Last edited by DFWdude; Jan 21, 2023 at 08:55 AM.
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