Push start button stopped working !








The easiest "try something" at this point would be the remote batteries. Check to see if there is a little red light flashing on your key when you try to lock/unlock. If there is, the remote batteries are fine. If its anything more than that, its better to take it to the dealer and have them process the fault. Rather than sitting here tossing countless amounts of money on parts that may or may not be the problem, then just coming right back in this thread to say: "Changed this part that everyone said, still doesn't work." Every car is different. Granted, it could be a common problem fix, or some off the wall CAN communication problem.
The Best of Mercedes & AMG
The easiest "try something" at this point would be the remote batteries. Check to see if there is a little red light flashing on your key when you try to lock/unlock. If there is, the remote batteries are fine. If its anything more than that, its better to take it to the dealer and have them process the fault. Rather than sitting here tossing countless amounts of money on parts that may or may not be the problem, then just coming right back in this thread to say: "Changed this part that everyone said, still doesn't work." Every car is different. Granted, it could be a common problem fix, or some off the wall CAN communication problem.
I'm just trying to help. Mercedes-Benz pays me to work on these vehicles for 10 hours a day. I own an E55, and visit the board and just try to help out as much as I can from a remote location with limited knowledge of what is actually happening with your vehicle. You can take my advice or not. I'm a strong advocate of actually trying to get to the root cause of a problem and repairing it correctly the first time out, rather than just throwing parts at it in the hopes that one of them will fix it. I apologize if I come off as a little brash.
then, it means that somebody has turned your shift-knob. maybe because he was trying to remove the knob and he didn't know how to. This is absolutely NOT to be done !!
or you will get the wiring of the button switch inside the knob shorted .
so, First rule is NEVER TURN/ TWIST your SHIFT KNOB !!
or you will find the same thing I found last week with my button:
... like this, wit hits wires twisted :

Uploaded with ImageShack.us
one more advice: NEVER try to turn back your twisted wires: they WILL BREAK !!
(.. happened this also ...)
Therefore, you'll have to:
- remove your trim panel
- remove the knob
- remove your button switch assy from the knob
at this point, just try separate them a little so as to avoid contact, but leave them there. do not turn them.
otherwise you'll have to repair/replace wires or replace the switch assy.
hope I understood your problem correctly and helped.
Last edited by dyno; Jul 23, 2013 at 04:06 AM.
2) He said it could be one of two the wires in the shifter from moving back and forth could be frad and causing short.
Eric.
2) He said it could be one of two the wires in the shifter from moving back and forth could be frad and causing short.
Eric.
P.S. What part of FL you live in?
then, it means that somebody has turned your shift-knob. maybe because he was trying to remove the knob and he didn't know how to. This is absolutely NOT to be done !!
or you will get the wiring of the button switch inside the knob shorted .
so, First rule is NEVER TURN/ TWIST your SHIFT KNOB !!
or you will find the same thing I found last week with my button:
... like this, wit hits wires twisted :

Uploaded with ImageShack.us
one more advice: NEVER try to turn back your twisted wires: they WILL BREAK !!
(.. happened this also ...)
Therefore, you'll have to:
- remove your trim panel
- remove the knob
- remove your button switch assy from the knob
at this point, just try separate them a little so as to avoid contact, but leave them there. do not turn them.
otherwise you'll have to repair/replace wires or replace the switch assy.
hope I understood your problem correctly and helped.
thank u so much cant believe a little twist would do that ! thank u to everyone else that chimed in u guys rock Last edited by AMG E Power; Jul 23, 2013 at 10:23 AM.
then, it means that somebody has turned your shift-knob. maybe because he was trying to remove the knob and he didn't know how to. This is absolutely NOT to be done !!
or you will get the wiring of the button switch inside the knob shorted .
so, First rule is NEVER TURN/ TWIST your SHIFT KNOB !!
or you will find the same thing I found last week with my button:
... like this, wit hits wires twisted :

Uploaded with ImageShack.us
one more advice: NEVER try to turn back your twisted wires: they WILL BREAK !!
(.. happened this also ...)
Therefore, you'll have to:
- remove your trim panel
- remove the knob
- remove your button switch assy from the knob
at this point, just try separate them a little so as to avoid contact, but leave them there. do not turn them.
otherwise you'll have to repair/replace wires or replace the switch assy.
hope I understood your problem correctly and helped.
thank u so much cant believe a little twist would do that ! thank u to everyone else that chimed in u guys rock don't get what's wrong with the word KNOB K N O B that it's being abscured ..
anyway, glad it helped ... but remember what I wrote in BOLD.
so, in the end maybe you'll have to replace the 2 wires .. but that's something feasible..
did I say NEVER TURN THE KNOB/ K N O B ?!!
and, DO NOT TRY TO GET THE WIRES BACK STRAIGHT AS WHEN NEW: they WILL break (because they are NOT mad eof copper but of brass)
Last edited by dyno; Jul 23, 2013 at 10:45 AM.




you are not going to break wires while you remove the button assy.
you are going to break them, after having removed the button assy, IF you'll try to straighten them back to normal.
Read again, carefully, what I wrote above.



cuz I'm lost with this one. Will report back once it's fix. Thanks for the help guys.