Mp3

I recently purchased a 2003 CLK and it has keyless go. It was working fine for a couple of weeks, but then it started not unlocking the drivers side door when I pull on the handle. It seems to have gotten worse. Now it rarely ever unlocks the doors when I pull on them, and the start button rarely works either. Today, even the lock and unlock buttons on the remote are not working every time.

I figured it was the battery, so I bought a new set and replaced them. The new batteries didn't change anything. I checked the voltage on the batteries and they are putting out 3 volts each like they should.

Any ideas? Do these keys wear out?

Rick SL55

the problem is on the door handle switch, you will need to buy a new door handle.

Mp3

Do the door handles have anything to do with the start button? The car will not start sometimes either.

Rick SL55

no to my knowledge, probably the shifter starting button need to be replaced also.

btw I had the same problem and was resolved with new parts.

Mp3

I solved the problem. For anyone in the future with a similar problem it turned out the batteries were no making a good connection in the remote causing it to intermittently work. I folded a piece of foil about 4 times and sandwiched it in between the 2 batteries then put them back in the remote. It now works fine. Good thing I did not start replacing door handles in the car!