Mercedes w202 cdi key doesnt work at all ?

SOURCE: 2005 mercedes e320 cdi both keys locked in trunk how to open????

Had the same problem and had to cut a hole in behind the rear centre arm rest to retrieve both sets of keys. I cleaned up the area and made it into a ski hatch or for passing fishing rods thro. MERKYS320

SOURCE: how to reprogram 1999 mercedes s320 key remote?

just insert the key to the ignition swich and leave it for one minute, it will work for sure.
Adel

SOURCE: my keyless remote doesn't work...whenever

I had the same problem. The dealer thought I was crazy when I explained the problem. They would drive the car and then try it and obviously it worked. They said it was fixed. It happened again. So they replaced the remote saying there was an internal failure. It still was a problem. They finally called chevy headquarters and found out there is an updated receiver for the 2007 model. I installed it and now it works. Good thing it was still under warranty.

SOURCE: '03 Hyundai Elantra - Keyless entry remote not working

It wouldn't be the car battery, but since you just purchased the car, the dealership should correct the problem. Bring it to their attention right away. Did you get any kind of warranty? Most dealers have at least a 30 day warranty for things like this.

SOURCE: 2007 Chevy Equinox - with

believe it or not you need to take it to the dealer. There is a software reprogram for the remote control door lock receiver to fix the probelm - really common on tahoes and suburbans. Go to the dealer and tell them about bulletin #06-08-52-002g. It probably will need new remotes also. Try and get the dealer to warranty it since its a known product defect and a known problem