Volvo V40 Oxygen Sensor Replacement at your home or office.

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$348.47 - $358.47

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Oxygen Sensor Replacement Estimate for Volvo V40

Volvo V40 Oxygen Sensor Replacement costs $354 on average.

CarServiceEstimateShop/Dealer Price
2004 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$621.95Shop/Dealer Price$767.97 - $1179.53
2000 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$621.95Shop/Dealer Price$768.03 - $1179.63
2002 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$626.95Shop/Dealer Price$772.31 - $1183.37
2000 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$621.95Shop/Dealer Price$769.71 - $1182.57
2003 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$621.95Shop/Dealer Price$766.81 - $1177.49
2001 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$626.95Shop/Dealer Price$771.44 - $1181.85
2002 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$626.95Shop/Dealer Price$771.59 - $1182.12
2003 Volvo V40L4-1.9L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$621.95Shop/Dealer Price$767.36 - $1178.46
Show example Volvo V40 Oxygen Sensor Replacement prices

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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YourMechanic Volvo V40 Service

Average Rating

4.7/5

Number of Reviews

23

Rating Summary
20
2
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1
20
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Theodore

15 years of experience
1256 reviews
Theodore
15 years of experience
Volvo V40 - Engine is shaking, pulsating or vibrating - Seattle, Washington
Another good experience with Theodore

Dave

22 years of experience
303 reviews
Dave
22 years of experience
Volvo V40 - Intake Manifold Gaskets - Felton, California
It was a good experience having Dave arriving on time and was eager to work on the car. He listens to my descriptions of my problem with my car and steps I had taken to pinpoint to the repairs that I needed. He was done replacing the intake manifold gasket and within the time scheduled. I find Dave easy to communicate with. I would call him again if required and would recommend him to my friends and families.......thanks Dave

Eugenio

25 years of experience
133 reviews
Eugenio
25 years of experience
Volvo V40 - Brake Hose Replacement (Driver Side Front, Passenger Side Front, Driver Side Rear, Passenger Side Rear) - Falls Church, Virginia

Kenneth

15 years of experience
113 reviews
Kenneth
15 years of experience
Volvo V40 - Brake Light Bulb Replacement (Driver Side) - Alameda, California
Awesome. On time, sincere, and really helpful. He did more work than I had expected, and taught me a few things to do myself. I have follow up work to do and I will do it with Kenneth.

Excellent Rating


YourMechanic Volvo V40 Service

Average Rating

4.7/5

Number of Reviews

23

Rating Summary
20
2
0
0
1
20
2
0
0
1
Number of Volvo V40 services completed
253+
services done by our mechanics
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