Mercedes Key Fob question.

Asked by Jun 29, 2017 at 09:46 PM about the 2009 Mercedes-Benz SL-Class SL 550

Question type: General

After losing my last key, I went to Mercedes and got a new
one. However when I got the new key all the buttons
work, except now the key can never be detected by my
car when I try to open the door without clicking buttons or
clicking the push to start. Do any of you guys know how
to make the car "detect my key" wirelessly? THANKS!

4 Answers

2,715

Go into your leatherbound owners manual in the glove box. Look in the back section under "Reprogramming" your key. There is a step by step action for you to do

2,715

Here is a video for you.... https://www.mbusa.com/mercedes/owners/videos/videoId-6fdeab43c4d8b210VgnVCM1000007c184335RCRD

2,715

and this is a video on your specific request on detecting the fob...... https://www.youtube.com/watch?v=osIIqhTXiVA

2,715

Now this video is on how to fix the fob........... https://www.youtube.com/watch?v=NLigrtydhpI

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