Second specialized car electronic shop assumed also that sas needs repair (he claims able to repair it from inside rather than replacing it). He reset the code and calibrated the sas to convince me that the light will go ON again and that resetting will not solve the problem. 2m away from the shop and the light get back ON and stayed few km till I arrived home. Next day I drove the car & noticed that the light went off. It was the same for the next 2 days, light still of.

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X5 3.0i SUV
2005 -113000 miles
GM-A5S 690R Tranny