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Old 12-16-2001, 10:13 PM
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Exclamation infared key not active

cannot figure. infared key will not lock - unlock. in the middle of christmas shopping. Just stopped working. The battery is OK I had it checked out. I do remember double pressing transmitter to open trunck. after that kaput! the re-syncro steps outlined in the owners manual have been followed - but no joy. 1996 E-320. Any thoughts. Please advise. Jack
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Old 12-17-2001, 10:38 AM
aTOMic's Avatar
Join Date: Aug 2001
Location: Hendersonville, Tennessee, USA, Earth
Posts: 451
Mine would not re synch using the manual's instructions; the dealer said to use a different procedure and it worked. I am sorry I do not remember it for sure, but it seems they told me to simply put the key in the driver door lock and hold the button down while turning it twice in the same direction (forgot which). If this doesn't work, you may get a better answer at 1-800-FOR-MERC.

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Old 12-17-2001, 01:37 PM
G-Benz's Avatar
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Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
I've had that happen with my SL's key remote. Even though the batteries were OK, they were not making solid contact.

I could get the keyless entry to work with the battery flip door off because I was applying pressure with my thumb. When I put the battery door back on, it would not respond!

So I adjusted the contacts in the battery compartments and it worked (after I re-sync'ed the unit with the car).
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
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