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#1
09-06-2007, 06:46 PM
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'01 e430 - both keys sometimes don't start car
My keys are not working correctly. Every so often, one or the other won't lock / unlock the car for a few attempts.
Every so often, the ignition accepts the key, things light up, but when turned to start, the engine does nothing. If I try the other key, it usually works. Today, neither worked for a few attempts. Then on the last try, I put one of the keys in, turned it, and left it turned. After a few seconds, the car started up. I started the car a few more times today no problem. I've changed batteries, with no change in symptoms. What can I check, clean, or generally fiddle with to help solve this problem?
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Thank You! Fred 2009 ML350 2004 SL600 2004 SL500 1996 SL600 2002 SLK32 2005 CLK320 cabrio 2003 ML350 1997 C280 Sport 
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#2
09-07-2007, 08:12 AM
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I'd start with a NEW "extra" key..Possibly both keys are having issues.
Making sure that the red window on the end of the key is CLEAN is also important.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
09-07-2007, 08:19 PM
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Just curious - where's the antenna or sensor that receives the signal from outside the car?
Both keys are clean on the ends - can I clean the ignition switch receiver with a q-tip and alcohol?
__________________
Thank You! Fred 2009 ML350 2004 SL600 2004 SL500 1996 SL600 2002 SLK32 2005 CLK320 cabrio 2003 ML350 1997 C280 Sport
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