General information

The broadband oxygen sensor requires ambient air inside the sensor. The ambient air enters the interior via the plug-in connection through the cable. This is why the plug-in connection must be protected against soiling, e.g. by wax or preserving agent. In the event of faults in the oxygen-sensor control, the plug-in connection on the broadband oxygen sensor must be checked for soiling. If necessary, the plug-in connection must be cleaned.