Airbag control lamp, error code B2863

Hello together, at our 9.3 AERO from 2001 (original 30’km) lights up the airbag control lamp. Fa. Häusler in Munich-Neuaubing has read out the error code “B2863 side airbag driver, resistance interruption too high” and wants to sell me a new airbag for € 450… Is there a cheaper solution (except to drive without airbag) and someone knows a good Saabschrauber west of Munich (A 96 to about Landsberg) ? Thanks + Greetings Christian