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Can not turn my key fob

Old Jun 30, 2018 | 12:30 PM
  #1  
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E-320 CDI
Can not turn my key fob

I have an issue with my 2006 E320CDI key fob it opens closes the doors also open closes the windows but when inserted in the ignition it does not turn in the ignition lock. Do I need reprograming or new key?
Please help

Last edited by lshah200; Jun 30, 2018 at 02:14 PM. Reason: no response
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Old Jun 30, 2018 | 05:57 PM
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'99 and '05 E55 AMG
https://mbworld.org/forums/e-class-w...ml#post7417807

Could be as simple as a bad solder joint in the key fob; could be as bad as the drive authorization system failed and needs replacement. Use your second key. If you don't have one, buy one but be prepared to pay several hundred dollars for it.

Last edited by bbirdwell; Jun 30, 2018 at 05:59 PM.
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Old Jun 30, 2018 | 10:33 PM
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Thanks I don't have second key if the key has bad solder than why does it work for door locks and window but does not turn in ignition switch? When I used before there was always a sound of steering lock being unlocked now I don't here that so I suspect there is issue with key not unlocking steering lock. How do you check if the key is good.
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Old Jul 1, 2018 | 11:39 AM
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Originally Posted by lshah200
Thanks I don't have second key if the key has bad solder than why does it work for door locks and window but does not turn in ignition switch? When I used before there was always a sound of steering lock being unlocked now I don't here that so I suspect there is issue with key not unlocking steering lock. How do you check if the key is good.
You are now at the point you need a STAR diagnostic system or equivalent. You can purchase a second key from the dealer (bring proof of ownership and identification) and, after receiving it several days later, you can see if it will work (although the key does need to be "taught" with the particular car). If it does not work, it is the steering lock module or the electronic ignition switch module or even a bad ECU. Those are theft-relevant parts purchased and must be coded at the dealership.
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Old Jul 1, 2018 | 03:11 PM
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E-320 CDI
Thanks I will go to t dealer(stealer) and ask them for new key or have my key fob checked. I don't have star diagnostic system but do have a ICarsoft MB Diagnostic scanner can it give me code to see what is the issue?
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Old Jul 2, 2018 | 10:28 AM
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It might but the STAR will show the actual values in the system; i.e. yes/no, on/off, etc for each link in the process required to unlock the steering column.
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