2014 CLS 550 Service Reset

Old Nov 30, 2015 | 12:19 AM
  #1  
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2021 GLC43; 2014 CLS 550/C218; 2012 E350/C207
2014 CLS 550 Service Reset

I know somebody is going to say that this info. is already out there however I couldn't find it! This is a compilation of several post and you-tube video's. I know this worked for my car...

2014 CLS 550 Service reset

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 or so, 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!)

It is my understanding this will work with CLS's 2012-2014, it may work on other models also.
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Old Oct 31, 2016 | 04:12 PM
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From: Houston Exburb-Richmond TX
2014 CLS 550 & 2004 CL55
Thank you very much for this. It worked on my 2012 CLS550 Service A message too. Now it says "365 days to Service B9". Gonna try to figure out what that is now.
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Old Sep 30, 2017 | 02:33 PM
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cls550 2014
I've tried every way I can think of to do this step and still cant get the service menu

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 or so, and hold them until you get into the SERVICE MENU (SERV).

2014 cls550

any other ideas?

Thanks!
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Old Sep 30, 2017 | 05:41 PM
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Originally Posted by rumb
any other ideas?
See attachment.
Attached Files
File Type: pdf
218 reset.pdf (111.1 KB, 573 views)
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Old Oct 1, 2017 | 05:53 PM
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cls550 2014
Thanks for the PDF, but that does not work for my 2014, 1st as I have keyless ignition.<br /><br />What eventually worked, though I am not exactly sure was turn the car on and then OFF. Then I followed the instructions (press phone and then OK and hold) and a menu with Assist Plus came up.(which looks just like the regular one) OK on that and then there was the service menu.<br /><br />Hope this helps someone else.<br /><br />rumb
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