have you used NCS before?
If so, when you read the car, it will give you this
http://www.bmwcoding.com/showthread.php ... ving-SA536
let me know what your SA number is, and I will put it in the program and see what options your car currently thinks is installed.
Mine showed SA536A (parking heater) - which gave the timer on the dash - we retrofit programmed at BMW.
When I removed it to put the car back to it's original coding - My webasto worked. (after changing it's ECU)
If you cannot undo the retrofit programming you done before to give you the timer, I can calculate the new SA number, which you then change in the car using NCS Expert instead.
There are instructions in that link if you want to try yourself