Air Bag Not Deploy problems of the 2005 Mercedes Benz C240

The contact owns a 2005 Mercedes Benz C240. The contact noticed that the air bag warning light was illuminated on the instrument panel, indicating that the air bags were inoperative. In the event of a crash, the air bags may not properly deploy. She took the vehicle to the dealer and they replaced the entire seat. Immediately after the repair, the failure recurred. She called the manufacturer and is waiting for a response. The failure mileage was 42,000 and current mileage was 52,000.