Hello, since yesterday the immobilizer of my Twingo can not be solved or the car did not react to the key and did not answer. Since the batteries were no longer the latest I changed them. Now the light from the key flashes red again when pressing, but the car does not respond. I read in forums that the key has to be reprogrammed, now I find nowhere a formula. The seven-digit code in the key is: WSWXUBT The Twingo is year of construction 98 Can someone calculate the code? Thanks in advance Sebastian