The SRS light came on randomly one day and I'm not sure why. I read online that the most common issue is a bad battery so I bought another one. I read in the same article that you need a code reader to clear the code for good, so I did that, but the light came back. My code looks like this on the reader. The number in the top right read 91 03. I looked up the number, assuming it was a fault code, but I couldn't find anything. Does anyone know what the problem is? I drive a 2005 C230 Kompressor Sedan.

 

I had the same problem with my 2004 C240. my battery went dead then then my SRS light came on. Believe me when I say those code reader will not erase the problem. what you must do is reset your airbag computer module.I had to rip out my stereo and AC control panel to get to it. Remove it and have someone reset it for 40 buck which I paid for it .