Oxygen Sensor Replacement at your home or office.

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$96.13 - $740.74

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received a Oxygen Sensor Replacement.
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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
2005 Chevrolet Suburban 2500 $299 $228.88 $70.00 11% $336.38
2010 Dodge Avenger $112 $42.48 $70.00 25% $149.98
2012 Hyundai Sonata $299 $229.08 $70.00 11% $336.58
2013 Mercedes-Benz S600 $200 $129.58 $70.00 15% $237.08
2011 BMW 535i GT xDrive $644 $398.72 $245.00 16% $774.97
2012 Jaguar XF $768 $628.00 $140.00 8% $843.00

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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.

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Recent Oxygen Sensor Replacement reviews

Excellent Rating


YourMechanic Oxygen Sensor Replacement Service

Average Rating

4.8/5

Number of Reviews

948

Rating Summary
885
37
6
6
14
885
37
6
6
14

Dellano

15 years of experience
257 reviews
Dellano
15 years of experience
Wasn't able to fix my issue, but gave me a great recommendation and all the information I needed to get it fixed in the future.
2007 JEEP LIBERTY - OXYGEN SENSOR REPLACEMENT (REAR/LOWER/DOWNSTREAM) - WASHINGTON, DISTRICT OF COLUMBIA

Tien

20 years of experience
746 reviews
Tien
20 years of experience
Tien was very professional and showed up early for my appointment! He pointed out what needed to be done and was kind even though the part I purchased was not correct.
2006 LEXUS GS300 - OXYGEN SENSOR REPLACEMENT (REAR/LOWER/DOWNSTREAM) - HAYWARD, CALIFORNIA

Joel

18 years of experience
562 reviews
Joel
18 years of experience
Very friendly and replaced the part in a timely manner .
2013 CHEVROLET MALIBU - OXYGEN SENSOR REPLACEMENT (REAR/LOWER/DOWNSTREAM) - JACKSONVILLE, FLORIDA

Robert

17 years of experience
436 reviews
Robert
17 years of experience
Robert was knowledgeable, professional, and knew his way around well on my pontiac 1986 fiero gt! He trouble shot and went through the motor well, Robert is VERY good at what he does and explains thing's well and patiently. Not alot of mechanics can work on or find their way around a mid engine car - I plan on asking for Robert personally when i need a fiero mechanic again. Thank you Robert!
1986 PONTIAC FIERO - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM) - DENVER, COLORADO

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