The sensor is located in the exhaust line ahead of the catalytic converter. This means that not only is the sensor exposed to the corrosive gases that are emitted from the engine but it is exposed prior to the gases being filtered through the catalytic converter. It also operates at extremely hot temperatures, Over time this causes the sensor to lose its integrity and can even eat much of the sensor away. We have seen the sensor so effected by time and the exhaust gases that there is nothing left above the point were it is inserted into the exhaust line. Volvos the system is more complicated by the addition of a second oxygen sensor.
Oxygen sensors can be costly due to precious metals used in their construction.
We have found a way to save you money by sourcing the exact same sensor but one with a short electrical wire. By splicing your existing wires into the identical sensor we are able to save you over a hundred dollars in the cost of the part. This price savings is passed directly on to you. Moisture collects during the night in your exhaust line. This can pool up and cause corrosion to occur leaving you with rusted components.