Oxygen Sensor Replacement Estimate for Mercedes-Benz GL450

Mercedes-Benz GL450 Oxygen Sensor Replacement costs $240 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$180 to $312
Labor: $70 -$96
Parts: $110 -$216
Average Dealer price
$312 to 544
Average Shop price
$220 to 370
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2007 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$317.44Shop/Dealer Price$406.29 - $604.24
2010 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$313.12Shop/Dealer Price$401.04 - $595.86
2012 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.24Shop/Dealer Price$240.76 - $347.03
2009 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.24Shop/Dealer Price$240.79 - $347.09
2007 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.43Shop/Dealer Price$243.47 - $351.37
2008 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.43Shop/Dealer Price$243.44 - $351.32
2008 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$318.52Shop/Dealer Price$407.83 - $606.72
2011 Mercedes-Benz GL450V8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$313.12Shop/Dealer Price$401.03 - $595.85
Show example Mercedes-Benz GL450 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz GL450 Oxygen Sensor Replacement

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

286 reviews
Dave
18 years of experience
Very friendly, efficient guy. Took care of things and was done. He was ontime, very knowledgeable and would definitely recommend the service to my friends.
2006 MERCEDES-BENZ C230 - OIL CHANGE
Want Dave's expert advice? Ask your question now. Its free!
283 reviews
Patrick
27 years of experience
Patrick was wonderful! He was so efficient and really cared about the service he was doing. I thought my sunglasses and wallet was missing, but he found both and gave them to my husband. What a trustworthy guy! I am so thankful it was him that came to our house. I would ask for him specifically if I ever needed service again. He is definitely an asset to your company. Please let him know how much I appreciate his honesty and the wonderful service he provided!
2010 MERCEDES-BENZ ML350 - CAR BATTERY REPLACEMENT
Want Patrick's expert advice? Ask your question now. Its free!
164 reviews
Theodore
11 years of experience
Very impressed with the service I received.
2011 MERCEDES-BENZ GL450 - BRAKE PADS REPLACEMENT (FRONT)
Want Theodore's expert advice? Ask your question now. Its free!
52 reviews
Rusty
18 years of experience
Very nice to work with and knowledgeable
2009 MERCEDES-BENZ C300 - CAR THERMOSTAT REPLACEMENT
Want Rusty's expert advice? Ask your question now. Its free!

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 Mercedes-Benz Models