SL/R231: How to Reset 2014 SL550 service reminder?
I can't figure out how to reset the thing. It now says its 110 days past due. (I let the car sit in the garage when im up north) I just had a mechanic friend do the service and he can't find it either.
We can get to the service assist thing but no way to reset it
2014 SL550
US model




1. On a keyless car press the start button one time for position "1" , If you have a key move it to position "1".
2. Scroll to the TRIP option on the display, go to the mileage display.
3. This is the trick, press the "Talk/Answer Phone/Make Call/Accept Call Button" (the one with the little phone picture)
AND the OK Button within one second, and hold them until you get into the SERVICE MENU (SERV).
4. Scroll down in the SERVICE MENU to ASSYST PLUS, press OK.
5. Scroll down to FULL SERVICE, Press OK.
6. Choose type of service being performed,(A,B,etc.) press OK.
7. Select OIL GRADE used (i.e. 229.5), press OK.
8. Select CONFIRM, press OK.
9. You are done!, Go to ASSYST PLUS menu and verify new status.(The "days late" message should be gone!)
Last edited by bsaz; Jan 4, 2016 at 03:32 PM.




Here is a link to one of the all-knowing folks on this site which has more details...
https://mbworld.org/forums/attachmen...-217-reset.pdf
Last edited by bsaz; Jan 4, 2016 at 08:02 PM.


