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Key wont turn in the ignition

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Old 06-08-2008, 08:57 PM
  #26  
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2003 S500, 03 C240, 03 E320, 03 tahoe
so whats the good news?

Originally Posted by dodgersnbolts
Thank you all for your replies to this post. It has been very helpful in making my decision to take it to the dealership...
is it fixed?
Old 11-15-2008, 01:41 AM
  #27  
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2000 Mercedes Benz C230 Kompressor
Originally Posted by kazuya
Hi there new here. The key is supposed to have a little diode near the end of the key. It is an anti theft deterrent. either you key is missing this or if you can see it has one it maybe defective. The diode looks like a piece of raised metal with black plastic around it
I don't know if this would help to diagnose your (or other people's) problem. But I too am having intermittent trouble with my key not turning (no spare to check it out since I bought the car used with only one key). It seems that the diode kazuya has mentioned sometimes get loose. After I expose the circuitry, and press on the diode, the key works fine again. I wanted to solder it but am afraid I will damage the key. Maybe after I get an additional one... sigh!!!!

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