Oxygen Sensor Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront

GET A QUOTE Backed by 12-month, 12,000-mile guarantee
Red-stars EXCELLENT RATING ON

How much does Oxygen Sensor Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 Chrysler 300 $157 $86.88 $70.00 19% $194.38
2011 Mitsubishi Galant $182 $111.78 $70.00 17% $219.28
2005 Pontiac Sunfire $160 $90.29 $70.00 18% $197.79
2008 Pontiac Solstice $148 $77.98 $70.00 20% $185.48
2006 Hyundai Santa Fe $439 $158.56 $280.00 25% $588.56
2006 Mitsubishi Lancer $323 $253.48 $70.00 10% $360.98
2014 Honda CR-V $209 $139.08 $70.00 15% $246.58
2014 Mercedes-Benz SLK350 $161 $91.20 $70.00 18% $198.70
2007 Audi A4 $326 $255.99 $70.00 10% $363.49
2003 Audi A8 Quattro $254 $155.54 $98.00 17% $306.04
2009 BMW 550i $415 $337.62 $77.00 9% $455.87
2006 BMW 330xi $517 $355.96 $161.00 14% $603.21
2013 Audi A4 Quattro $248 $178.38 $70.00 13% $285.88
2014 Jaguar XJ $229 $131.08 $98.00 18% $281.58
2007 Maserati GranSport $257 $187.18 $70.00 12% $294.68
GET A QUOTE FOR YOUR CAR

Oxygen Sensor Replacement Service

What is the Oxygen Sensor all about?

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor.

If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor-MATROX-1

When replacing the oxygen sensor remember:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is replacing the oxygen sensor?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

Fast and easy Oxygen Sensor Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Recent Oxygen Sensor Replacement reviews

Excellent Rating


YourMechanic Oxygen Sensor Replacement Service

Average Rating

4.8/5

Number of Reviews

645

Rating Summary
603
25
4
4
9
603
25
4
4
9

Nicholas

13 years of experience
181 reviews
Nicholas
13 years of experience
Nick even showed up early and did a thorough inspection. He tested my other O2 sensors as well. Friendly guy and seems to know his stuff.
2012 FORD EXPEDITION - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM) - DENVER, COLORADO

Jerimiah

15 years of experience
67 reviews
Jerimiah
15 years of experience
Yet again Jerimiah was prompt (a little early which is great) and ready to go to work. He explained things clearly and never felt like I was a bother to him. I get nothing but good vibes about this honest and professional mechanic. He is most certainly my go to guy for all my future car needs. I can't be any more satisfied. He fixed my engine light issues and fully explained the best way to drive so that I can reset all of my sensors so that I can get a passing smog check soon. My ride now has someone to keep it running for a lot longer and for a lot less than I could be spending. Thank you Jerimiah!
2006 CHEVROLET MALIBU - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM, REAR/LOWER/DOWNSTREAM) - NORTH LAS VEGAS, NEVADA

Peter

39 years of experience
789 reviews
Peter
39 years of experience
I highly recommend Peter. It was a delightful experience to have him repair my car. He arrived 15 minutes early. He explained the problem and expertly repaired it. How often does one say car repair was a good experience, well now it is for me since I found "Your Mechanic" and Peter. America needs more of this kind of thing.
2002 CHEVROLET TRAILBLAZER - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM) - SURPRISE, ARIZONA

Grzegorz

37 years of experience
388 reviews
Grzegorz
37 years of experience
Grzegorz is awesome!! He explains things well. Really considers what’s necessary, and does the right things that your car needs, without doing unnecessary repairs. He takes time to answers questions and will look at things appropriately. I would definitely recommend him to others!
2003 LEXUS IS300 - OXYGEN SENSOR REPLACEMENT (REAR/LOWER/DOWNSTREAM) - BELMONT, CALIFORNIA

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com