Mercury Milan Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Estimate for Mercury Milan

Mercury Milan Oxygen Sensor Replacement costs $263 on average.

CarServiceEstimateShop/Dealer Price
2010 Mercury MilanV6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$733.51Shop/Dealer Price$904.29 - $1388.73
2006 Mercury MilanL4-2.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$207.53Shop/Dealer Price$251.83 - $356.80
2010 Mercury MilanV6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$605.39Shop/Dealer Price$749.16 - $1152.52
2011 Mercury MilanL4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$703.09Shop/Dealer Price$871.26 - $1347.88
2010 Mercury MilanL4-2.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$404.59Shop/Dealer Price$498.17 - $750.95
2006 Mercury MilanV6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$271.11Shop/Dealer Price$331.31 - $483.96
2010 Mercury MilanL4-2.5L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$212.53Shop/Dealer Price$256.70 - $361.56
2009 Mercury MilanV6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$449.71Shop/Dealer Price$553.54 - $836.58
Show example Mercury Milan 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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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(86)

Rating Summary
81
5
0
0
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81
5
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Victor

15 years of experience
9 reviews
Victor
15 years of experience
Milan 2006 - Transmission Fluid Service - Fresno, CA
Arrived earlier that scheduled time. Knowledgeable and friendly.

Walter

43 years of experience
238 reviews
Walter
43 years of experience
Milan 2006 - Air Filter - Tulsa, OK
Walter is a top notch mechanic. He does a great job. I would highly recommend him to anyone, any job, any vehicle. He's a 10 out of 10. He made sure all tasks were completed. Awesome mechanic. However, as far as the customer personal every agent wasn't good. Rosa and Julia are the only customer service personal I would ever speak with on the phone to complete another job. Both had empathy, great listening skills, effective communication, and compassion for their jobs. It could be heard. As for Jesus, Ceasar, Don, Kenya, Bianca needs more training with job coaches and should listen to my calls. They didn't listen to me and should have completed the tasks at the first call. Customer service personal are the first line of contact with the customer so everyone needs to be on the same page from the beginning, same verbage, same understanding, same information for the company. I can see Moblie Mechanics as a trend for the times , due to pandemics. People will need them to come to the house and work places to complete car mechanical needs. Thank you so much for your time. Have a great year and stay well. Sincerely yours Mary Hambright-Bender.

Chuck

4 years of experience
271 reviews
Chuck
4 years of experience
Milan 2007 - Control Arm Assembly - Irving, TX
Very informative and efficient. Will definitely use again!

Simon

25 years of experience
203 reviews
Simon
25 years of experience
Milan 2006 - Interior Door Handle - Washington, DC
Thanks so much he was great

Excellent Rating

(86)

Rating Summary
81
5
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0
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81
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0
Number of Mercury Milan services completed
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