BOSCH 15097 Premium Original Equipment Oxygen Sensor - Compatible with Select Volvo C70, S70, V70, 850

This replaced a made in China O2 sensor that kept throwing a CEL on my 98 Volvo V70. Once it was installed the CEL stayed out and my mpg and performance returned to normal. Don't waste your time on a cheap aftermarket O2 sensor.

Failed due to a O2 Sensor heater circuit P0130/ P0135 immediately on starting. Confirmed by ohm meter that the internal heater circuit is open.Replaced this defective sensor with my old sensor after a cleaning and no codes for 6 months until P0171 lean condition finally came back, which was the reason I bought this one from Amazon in the first place. So back to where I started.. needing an O2 sensor. .

I did a search on Amazon for a replacement oxygen sensor for my 1999 Volvo V70. I used the compatibility checker on Amazon to check the first one I found and it said that it was compatible so I ordered it. Since it was time for my regular service I gave it to my mechanic to install at the same time. He phoned me during the servicing to tell me that it was the wrong sensor. When I picked up the car there was a $42.50 charge for uninstalling the old sensor and for reinstalling it.I contacted the vendor who told me it wasn't his fault since he had no control over Amazon's compatibility checker. Long story short, the vendor took the sensor back and gave me a refund. Amazon gave me a credit for the service charge and I ordered this sensor.When it arrived I decided to install it myself. I borrowed my son's auto ramps so I could get the car high enough to crawl under. I put the car on the ramps in the garage one evening so it would be cool by the next morning. I did not have the sensor removal tool but thought I would try to remove it using an adjustable wrench. I put a work light under the car and scooted under just behind the left front wheel (driver's side). The sensor is located just in front of the catalytic converter. Although I couldn't get the wrench squarely on the sensor I was able to get a decent grip on it and gave the wrench a hard push. The sensor moved and came out easily. It may have helped that my mechanic had taken it out recently.The wire cable from the sensor runs through a little plastic fastener that may be popped out if you are careful but if you break it, a wire tie works fine. The electrical connector is easily reachable from above. It took me a while to figure out how to disconnect it but finally discovered a small slot into which I inserted a very small screwdriver and the connector popped open. Insert the screwdriver parallel to the wire cable at the top end of the connector.It is a good idea to screw the new sensor in before you connect the wire cable. Otherwise it will get very twisted. Make sure you use the fastener or wire tie to keep the wire cable away from hot surfaces.When I started the engine the "Check Engine" light came back on so I thought I would have to have it reset. I wasn't able to do that right away but after a few starts and driving 20-30 miles it went off. Before I replaced the sensor I was getting about 10 mpg but now it is back to the regular 25-30 mpg.

Exact fit

This product was exactly what I was looking for.All the correct specs. Easy to Install.The only problem was no written directions however youdo not need them if you have a Manual. Haynes or Chilton etc..The hardest part was getting the old part off.Remember to pry the clip carefully with a screwdriver to remove theold sensor. It was not evident in the pics in the manual. Had I looked realclose it would have been evident. If you have worked on cars with theseclip in devices it will be very easy. After seeing the clip it tookaround 20 minutes max....Buy this Product! You will be very happy!My gas mileage has increased dramatically and do both sensors at the same time...

Great price, very quick delivery, and best of all - a tremendous increase in gas mileage. The old sensor was still working without setting the check engine light, but the gas mileage had dropped by almost 40% over several months. Having checked everything else, this was the last thing to try. Immediate improvement in both gas mileage and engine performance.

Amazon's fitment was incorrect. This item did not fit my 1999 Volvo S70.

excellent replacement part. easy to install

Exact oem, works perfect