W220 - 2006 S65 AMG Keyless Go issues?
My new to me 2006 S65 came with 2 key fobs. One was a brand new one made for me on the dealer's dime, the other is the original key that came with the car. These are the old style keys, and not the chrome ones (if memory serves as I don't have them in front of me).
Both keys can lock and unlock the vehicle, start the car when inserted into the dashboard key slot, plus open the trunk. Neither one however is recognized when attempting to start or stop the engine via the transmission shifter button. A message appears on the gauge cluster that "Key is not recognized". Similarly, neither will open the door when in my pocket and I press the unlock buttons on the driver or passenger side handles.
I would have imagined a problem with the original key due to a weak battery, but the new key has a new battery in it.
I've done some research on the forum, and none really addressed my concerns. The simplest explanation being the ECU probably just needs to be reset, while some others state that the EIS may be faulty.
I don't have a Star diagnostic computer, just a regular OBDII code reader. Is there anything I can do to troubleshoot first to determine the actual issue before taking it to a dealer?
Many thanks in advance for your help and suggestions.






Does anyone know how much that costs? I'd assume that if nothing else were wrong, this should be labor only and no more than an hour?
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I got there this morning at 10:00 AM. I wasn't able to leave until shortly before 3 PM. Turns out that the two keys I have are coded for tracks 4 and 5 and they cannot be re-programmed at all. In fact, no MB smartkey once programmed can be re-programmed. This is what I was told by the SA several times. Additionally, you can't move the assignment of keys on certain tracks to other tracks. In other words, the dealer wants me to pay out the nose for 2 new keys. No thank you. On top of that, I asked them about the door chime to see if it was coded out by the PO. The techs said there's nothing wrong with it. Of course when I get the car back over 4 hours later, the door chime doesn't work.
Long story short, I left with absolutely nothing being done but getting charged $165.00 for diagnostics. I feel like I had to pay them to waste my time. Yes, I'm pissed. No, I will not be going back to them again. On top of that, they gave me a printout saying I need another $13k worth of maintenance done. And to add insult to injury, I feel like since my car was in their hands, a rattle somewhere in the front or the rear of the car when going over bumps has been exacerbated. I've heard it before, but not quite as excessively as I did on the way home versus the way there.
I'm going to go beat my head against a wall for a few minutes now.
Last edited by amstel78; Mar 3, 2017 at 04:30 PM.
I bought a Lexus (2003 just last yr. with 40k on it..just like new) and was having trouble getting front end aligned properly..it ended up being a bad brand new tire...anyways...since I was at the Lexus dealer...they asked if I wanted a full car check for free...sure..I'm here....free...why not...they come back with a $3500 tab of stuff I need done (on a car I paid $9000 for)...mind you..I am an aircraft mechanic...so I do know something..I had as well pulled up all the known issues this model has had in its build run prior to buying the car. Their list was almost verbatim what I had found out in research. Leaky water pump seals...not a drop...leaky valve covers...not a drop...etc...etc...etc...so the point being they are just out to take your $$$$
In that time however, MB corporate sent me a survey email asking about my experience at their only corporate owned dealership in the USA. You can imagine that I wasn't very diplomatic about describing my experience. I guess someone must have read it and took action.
So, again this is a story with a happy ending. My KG still works perfectly. Only thing that's not functional is the micro-switch for the lock button on the driver side rear passenger door handle. Apart from that, everything works as it should.




