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Infrared Keys
I have a 1993 400 SEL and the key entry system does not work at least not all the time. The keys were originally designed to use a battery that is no longer avaliable because of enviromental reasons. The replacement battery from the dealer is a style 357. Does this have anything to do with the operation which is now sporadic? I have three keys, two regular keys and one 'Valet' key. The two regular keys are the ones with replacement batteries and don't work most of the time. Can they be repaired?
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