Thursday, May 2, 2013
How do I Reset Error Code SOS in a 2001 Mercedes
1. Buy a Mercedes-Benz code reader from a website, there are many available. Make sure the code reader has a 16-pin OBDII standard socket port. The 16-pin port is what the diagnostic port on the C320 uses. 32-pin readers can be used, but an adapter and rather complex software is needed. It is simpler and cheaper to just get a 16-pin reader. No batteries are needed, as the code reader draws power from the car itself.
2. Start the car and wait for the reader to flash the name of the code reader, then press the Read button. It will be the green button to the bottom left. It will flash the error code three times; after the third time, press the erase button. Depending upon the model of code reader, you may have to press Erase after every code or only once for all the codes.
3. Disconnect the code reader and turn off the car. Then turn the car back on and replug the reader to check to see if the erasure took. If it has, you are done; if it has not, you will need to replace the SRS sensors themselves, which only a Mercedes-Benz mechanic can do.
