Alternatively try 09 Central Electronics, there is no 46 convenience or 35 Central locking on these probably due to them being a half hearted fatherless love child of Ford & VW.
Re: VW Sharan 2005 - No remote lock / unlock. No comms to module via VCDS #
Key fob may need to be reprogrammed to car, Hope this helps
1. Close all the vehicle doors.
2. Insert the key into the driver door lock cylinder and turn the key from the rest position to the unlock position three times within five seconds.
Note: Make sure the door lock cylinder is held in the unlock position for more than 0.5 seconds.
3. The door lock light emitting diodes (LED)s will illuminate for 15 seconds during the remote transmitter programming mode, allowing the remote transmitter to be programmed.
4. Remove the key from the driver door lock cylinder.
5. Press and hold the LOCK button on the remote transmitter.
6. While holding the LOCK button down, press the UNLOCK button three times on the remote transmitter.
7. Release both buttons simultaneously.
8. Make sure the door lock LEDs flash five times, confirming that the remote transmitter has been programmed.
9. To program additional remote transmitters, repeat step 4 to 8.
Test all the programmed remote transmitters, by activating and deactivating the locking and unlocking functions on key fob.