Attention !! 1117

I bought this product for a C2. I installed the circuit of the ancient key inside, pin, and pleased with myself I made the old key trash. I did not need the vehicle immediately, so I tried to start one week later. Fini, my car would not start !! My old key should be somewhere dumped. I was forced to bring in tow the car to a mechanic who told me that the chip code is molded into the hull of the key! 110 to make a new key and set the car. So beware !!