Oxygen Sensor Replacement Estimate for Mercedes-Benz SLK250

Mercedes-Benz SLK250 Oxygen Sensor Replacement costs $345 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$345 to $355
Labor: $70 -$80
Parts: $275
Average Dealer price
$643
Average Shop price
$427
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CarServiceYourMechanic PriceShop/Dealer Price
2012 Mercedes-Benz SLK250L4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$367.04Shop/Dealer Price$466.71 - $708.54
Show example Mercedes-Benz SLK250 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz SLK250 Oxygen Sensor Replacement

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Rocco
17 years of experience
Incredibly knowledgeable, friendly, and personable. I called for a check-engine light on our aging MLS 320. A problem it turns out only the dealership can fix. Nonetheless, Rocco was able to give me the litany of issues AND the order of priority. Now I can go to the dealership with all the knowledge I need to be in control. And when they fix the major issue, I'm calling Rocco back to fix the rest of the problems. Overall, great experience with Rocco and the service.
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Richard
6 years of experience
Prompt, professional, pleasant, and knowledgeable. Richard texted me to let me know he would be 15 mins late and still showed up 5 mins early. He made additional recommendations and documented all of his work.
2003 MERCEDES-BENZ C230 - MASS AIRFLOW SENSOR REPLACEMENT
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18 years of experience
Kevin was awesome. Gave us the answers we were looking for and much more. I will recommend him to friends as well as your service
2001 MERCEDES-BENZ SLK230 - CLUTCH IS NOT WORKING INSPECTION
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30 reviews
Terrell
36 years of experience
Terrell was timely and proficient. Arrived early with parts and everything necessary to complete the job. Job was completed fast, and easy!
2011 MERCEDES-BENZ E350 - CAR BATTERY 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.

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