S/CL-Class (W140) Coupe 1994-1999: S500 Coupe, S600 Coupe, CL500 Coupe, CL600 Coupe

1999 S420 they won't turn

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Old 02-02-2011, 12:35 AM
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2005 ML350 70,000 miles, 1995 E320 215,000
Exclamation 1999 S420 they won't turn

Today when I put my key into the ignition it will not turn to the #1 position. It will turn out of the zero position but will not engage all the way to start the car. If I hold the key against the #1 position I do get my srs light and all electrical functions work. One thing I noticed when rapidly turning the key back and forth I hear a clang/bop noise under the drivers footwell like something is engaging nut not all the way. I noticed too when removing the key from the ignition it does not make that noise it makes when removing it. I just pull the key out.

Any suggestions before taking it to a repair shop?
Old 02-02-2011, 09:55 AM
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2014 S550 4matic
Originally Posted by Vipers1973
Today when I put my key into the ignition it will not turn to the #1 position. It will turn out of the zero position but will not engage all the way to start the car. If I hold the key against the #1 position I do get my srs light and all electrical functions work. One thing I noticed when rapidly turning the key back and forth I hear a clang/bop noise under the drivers footwell like something is engaging nut not all the way. I noticed too when removing the key from the ignition it does not make that noise it makes when removing it. I just pull the key out.

Any suggestions before taking it to a repair shop?
it sounds like your ignition switch has malfunctioned due to possible broken parts within, a small metal clip inside i had same problem, broke key off trying to turn it. stop and have switch replaced, cause it will be much more if you do
Old 02-02-2011, 02:32 PM
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2005 ML350 70,000 miles, 1995 E320 215,000
I'm thinking it might be the ignition as well. It is stuck between the 0 and 1 position but the key will come out. Because of this the battery is running down. I can lock/unlock the steering colum which I guess is good. I've decided to leave it alone and stop messing with it before I cause damange by trying to get the key turned. I'm having it towed to the shop hopefully today.

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