The SRS (airbag) light can come on if liquids are spilled into the seat belt buckles, or if the liquid pools underneath the seat and gets into the electrical connector for the seat belt pretensioner. Damaged components will require replacement to restore proper airbag operation.Google+
Car Problem Reports
Mercedes-Benz C230 SRS Light Due to Spilled Liquid on Buckles or Underneath Seat
Mercedes-Benz C230 Problem
Average Mileage: 62,000 mi (34,000 mi - 97,000 mi)
Visitor, 2002 Mercedes-Benz C230
haven't found the problem jet . its in the Mercedes dealer..
Visitor, 2007 Mercedes-Benz C230
exactly what it says... SRS due to back rear seat belt system according to dealer. wasnt going to pay to fix
Visitor, 2006 Mercedes-Benz C230, 34,000 mi
The dealer charged me $109 for an hour of labor to determine the seat belt was exposed to liquid and needed to be replaced. I opted to replace the belt latch myself for about $80.
Visitor, 2003 Mercedes-Benz C230, 55,000 mi
spilled drink causes this issue