Oxygen Sensor Replacement Estimate for Mercury Mountaineer

Mercury Mountaineer Oxygen Sensor Replacement costs $133 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$116 to $165
Labor: $70 -$104
Parts: $46 -$61
Average Dealer price
$184 to 243
Average Shop price
$140 to 185
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CarServiceYourMechanic PriceShop/Dealer Price
2005 Mercury MountaineerV8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.14Shop/Dealer Price$167.19 - $227.68
2000 Mercury MountaineerV8-5.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$155.91Shop/Dealer Price$191.11 - $254.01
2004 Mercury MountaineerV8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$134.91Shop/Dealer Price$165.68 - $225.28
2003 Mercury MountaineerV6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$134.91Shop/Dealer Price$165.70 - $225.31
2010 Mercury MountaineerV6-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.14Shop/Dealer Price$167.20 - $227.70
2009 Mercury MountaineerV8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$136.14Shop/Dealer Price$167.18 - $227.67
1997 Mercury MountaineerV8-5.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$136.44Shop/Dealer Price$167.66 - $228.44
2006 Mercury MountaineerV6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$134.91Shop/Dealer Price$165.73 - $225.35
Show example Mercury Mountaineer Oxygen Sensor Replacement prices
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Parts required for a Mercury Mountaineer Oxygen Sensor Replacement

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471 reviews
Peter
38 years of experience
Great service. Great price. Found the mechanic I have been looking for!!!
2004 MERCURY MOUNTAINEER - FAN CLUTCH REPLACEMENT
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197 reviews
Jeff
22 years of experience
very pleasant . seemed to know what the problem was and how to fix it
2008 MERCURY MARINER - CAR IS NOT STARTING INSPECTION
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133 reviews
Alex
11 years of experience
He was the greatest! will use him and this service again :)
2000 MERCURY MOUNTAINEER - WATER PUMP REPLACEMENT
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105 reviews
Alfredo
16 years of experience
Great mechanic!! He gave my car a good inspection and found some additional things I should take care of before they cause bigger issues. Did my original service quickly and effectively (and might I add this guy is very prompt). Will definitely book with Alfredo again.
2006 MERCURY MOUNTAINEER - FUEL PRESSURE SENSOR REPLACEMENT
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All about Oxygen Sensor Replacement

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 Replacement Estimates for Popular Mercury Models