Date registered: Jun 2013
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Are there any tricks to replacing a key fob case?
I bought a 2000 CLK-320 last week. We bought the car knowing the key fob was broken. He had dropped the key, so the little plastic covering for the LED (laser?) broke, and the key no longer worked to operate the vehicle. He gave us the broken key. He had been using the emergency (valet?) key to operate the vehicle for years.
The circuit board inside the key looks fine to me.
I purchased a used key fob, and took the circuitry out and replaced it with my original circuitry and I put new batteries in.
This seems like it should solve the problem. But the key won't start the car, and the fob won't even work to operate the keyless entry.
Is there any sort of special code needed to "reset" the fob after the batteries are replaced? Any other theories on why this won't work?