try this mate.
Exact Procedure as described by VW elsawin To adapt manually, follow the steps described below.
Programming a key
1 - Introduce the key to be programmed into the ignition lock and keep it turned, for no longer than 5 seconds.
2 - Take out the ignition key. You have 20 seconds from now to programme the first key.
3 - Press and keep one of the key's buttons engaged.
4 - At the same time, press down 3 times on the other button, for no longer than 10 seconds.
5 - Release the first button which was being held down. The key warning lamp will flash five times. If the control unit accepts the programming for the key, the central locking system will operate, carrying out a complete cycle of opening and locking the vehicle, during which time the flashers will also go on.
Programming more than one key –
Once you've made the first key operational, it is possible to program up to three more, but without having to introduce the rest of the keys into the ignition lock. –
The programming time is again 20 seconds Repeat the above steps for each key. –
The control unit will indicate the correct programming of the second key by carrying out an opening cycle, of the third key by carrying out a closing cycle and of the fourth key by carrying out an opening cycle.
This seems to show that you press and release the first button then the press the other 3 times, as opposed to the method above where you hold and press.... You may have to try both methods but one should work. I'd start with this one myself.