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*Registered
2005 SLK200
Joined
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108 Posts
Discussion Starter · #1 ·
I am trying to unlock my car with the key but no lock, I change the battery, and still the same, just unlock or lock by the infrared emitter closed to the door handle.

any hint on this?
 

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Founding Member 2006
Joined
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113,396 Posts
does indoor switch lock/unlock?
 

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Founding Member 2006
Joined
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113,396 Posts
lock unlock is rf with antenna
roof open close is with ir in door handle but unlock/lock intertwined with roof open close to lock on close
 

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**Premium Member 2014 SLK200
Joined
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4,204 Posts
Anything likely to be causing RF interference in the area?
Simple things like remote senders for weather stations can cause problems if the batteries start to die and the sender goes off frequency.
 

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Administrator (Canada)
Joined
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22,999 Posts
Have you by any chance been "fooling around" with the antenna? Is it fastened tight? Check for corrosion at base of it as well or a loose connection there.

As said, the IR door handle is only for roof/antenna is the receptor for the doors.
 

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Administrator (Canada)
Joined
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22,999 Posts
My ir door sensor unlocks car.
Had aerial off car so had to use it.
?

 

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*Registered
2005 SLK200
Joined
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108 Posts
Discussion Starter · #12 ·
i tried to remove the antenna while the radio is working so it´s fade, and come back when the antenna been put back, but he key RF still dead
 

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*Registered
2009 SLK350
Joined
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541 Posts
Might want to check inside your fob. Hope this helps.
 
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