1996 BMW 328 check engine & air-bag light stays on

Hello,
After having the water pump, pully, fan, and belt, anti-freeze flushed and fill; oil / Filter changed and replaced, I took the car for test drive; everything works fine, except after driving 2 miles, the 'engine check' and the 'air-bag' light came on and now it stays on while driving the car;
I checked all the connectors / etc but nothing seems to be loose;
Can I just get this reset?
Please help and Thanks in advance.
Dinesh