Key not recognizing in car NEED HELP
Thread Starter
Super Member
Joined: Jul 2007
Posts: 561
Likes: 1
From: Sacramento California
2007 S550 (S65 Package)
Key not recognizing in car NEED HELP
Im having problems with my key again. right now the car is at the dealer ship and the buttons will not work. that really hasnt bothered me though. the real problem is that the key will not turn inside the ignition. when i showed the service manager she said that they just changed the batteries and when the buttons started working again but when they tried turning on the car she said that the car shorted out the batteries inside the key. does anybody know what can be the problem here. and you know the dealer is going to want to charge me up the butt. so i just want to know what the problem might be if anybody had this situation before. thanks in advance
Super Member
Joined: May 2006
Posts: 513
Likes: 2
From: San Diego, CA
2020 GLE350
Sounds strange that the batteries inside the key can be shorted by the ignition. There are no contacts on the key itself (as opposed to BMW or Infiniti fobs) and AFAIK there is only a wireless chip connection between the key and the ignition, how can that short the batteries. Sounds more like a problem with the key itself, maybe when it receives the signal back from the ignition switch something makes it short. Does it throw any codes on the SDS? Send a PM to the guys at www.midcityengineering.com they can probably help guide you better.
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Joined: Dec 2006
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From: Europe
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"The car shorted out the batteries within the key"? The key should start the car even if the batteries were out of the key. It is powered by a coil at the ignition switch.
You don't say how the car operates with your spare key (please don't tell you don't have one)?
It could well be the EIS. But it should be easy for the shop to diagnose that. If it works with a spare key, then it will be cheaper, either fix your old key (the shop would not do it, it could be the receiving coil loosing soldering contact) or buy a new one and have it coded.
You don't say how the car operates with your spare key (please don't tell you don't have one)?
It could well be the EIS. But it should be easy for the shop to diagnose that. If it works with a spare key, then it will be cheaper, either fix your old key (the shop would not do it, it could be the receiving coil loosing soldering contact) or buy a new one and have it coded.
Thread Starter
Super Member
Joined: Jul 2007
Posts: 561
Likes: 1
From: Sacramento California
2007 S550 (S65 Package)
"The car shorted out the batteries within the key"? The key should start the car even if the batteries were out of the key. It is powered by a coil at the ignition switch.
You don't say how the car operates with your spare key (please don't tell you don't have one)?
It could well be the EIS. But it should be easy for the shop to diagnose that. If it works with a spare key, then it will be cheaper, either fix your old key (the shop would not do it, it could be the receiving coil loosing soldering contact) or buy a new one and have it coded.
You don't say how the car operates with your spare key (please don't tell you don't have one)?
It could well be the EIS. But it should be easy for the shop to diagnose that. If it works with a spare key, then it will be cheaper, either fix your old key (the shop would not do it, it could be the receiving coil loosing soldering contact) or buy a new one and have it coded.
Super Member
Joined: May 2006
Posts: 513
Likes: 2
From: San Diego, CA
2020 GLE350
Call an independent, now that you have a diagnostic, and get an estimate. After that, call the dealer again and haggle like crazy, they know they are sticking it to you, and some SA's will be helpful. Also, call other MB dealers as well, some shops are not as busy as others and with this economy they will welcome the business. You should definetly shop around.
I looked at the WIS and there are programming procedures that need to be followed with SDS, so it is not just a module replacement.
I looked at the WIS and there are programming procedures that need to be followed with SDS, so it is not just a module replacement.
Thread Starter
Super Member
Joined: Jul 2007
Posts: 561
Likes: 1
From: Sacramento California
2007 S550 (S65 Package)
Call an independent, now that you have a diagnostic, and get an estimate. After that, call the dealer again and haggle like crazy, they know they are sticking it to you, and some SA's will be helpful. Also, call other MB dealers as well, some shops are not as busy as others and with this economy they will welcome the business. You should definetly shop around.
I looked at the WIS and there are programming procedures that need to be followed with SDS, so it is not just a module replacement.
I looked at the WIS and there are programming procedures that need to be followed with SDS, so it is not just a module replacement.
