Oxygen Sensor Replacement at your home or office.

Our certified mechanics come to you・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Logo-yelp
CUSTOMERS LOVE US ON YELP
4.5 out of 5 (550 reviews)
Icon-warranty_badge-02
SERVICES BACKED BY OUR
12-Month, 12,000-Mile Warranty
How does YourMechanic work?    
Icon-quote-hiw
Get a quote

Choose from 600+ repair, maintenance, and diagnostic services, backed by our 12-month, 12,000-mile warranty.

Icon-calendar-hiw
Book an appointment

Tell us when to meet you at your home or office. We’ll send one of our vetted, top-rated mechanics.

Icon-fixed-hiw
Get your car fixed

Continue with your day while our mechanic fixes your car onsite. You pay only after the job is done.

Oxygen Sensor Replacement Estimate for Mercedes-Benz CLK320

Mercedes-Benz CLK320 Oxygen Sensor Replacement costs $209 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$177 to $244
Labor: $70 -$80
Parts: $107 -$164
Average Dealer price
$307 to 421
Average Shop price
$217 to 288
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
2001 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$185.65Shop/Dealer Price$239.97 - $345.76
1998 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$242.09Shop/Dealer Price$310.65 - $458.87
2005 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$183.51Shop/Dealer Price$237.33 - $341.55
2003 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.20Shop/Dealer Price$283.23 - $415.00
1998 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$231.83Shop/Dealer Price$297.71 - $438.15
1999 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$245.34Shop/Dealer Price$314.57 - $465.13
2000 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.15Shop/Dealer Price$315.75 - $467.03
2002 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$183.51Shop/Dealer Price$237.41 - $341.68
Show example Mercedes-Benz CLK320 Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service & Cost

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

Keep in mind:

  • 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 this service?

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.

Fast and easy Oxygen Sensor Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

445 reviews
Chris
17 years of experience
I am not one to make comments on my experiences with an individual or a company. I am today because I feel it is worth 5 minutes to do so. I had another mechanic from "your mechanic" come prior to this visit and fixed a few ancillary things on my Mercedes. However, there were unique issues with my electrical that had me spinning. I called the company and explained the prior situation and was at the point where if they did not fix my issues I had already decided I would never use them again. That did not happen! They called and after my lengthy explanation, not only did they come back out, but send the guy that knew Mercedes electrical better than any other. This group is stellar and if they continue to take care of people the way they did me "your Mechanic" will be a household name.
2003 MERCEDES-BENZ CLK320 - INSPECTION / DIAGNOSTICS
Want Chris's expert advice? Ask your question now. Its free!
268 reviews
Richard
16 years of experience
Excellent!
2005 MERCEDES-BENZ CLK320 - SPARK PLUG REPLACEMENT
Want Richard's expert advice? Ask your question now. Its free!
248 reviews
Stefan
12 years of experience
This is the 2nd time I have used this service. I am completely satisfied add to that we have had a jeep and a mbz successfully worked on and I highly recommend yourmechanic.com.
2004 MERCEDES-BENZ CLK320 - DRILL OUT DAMAGED BOLTS REPLACE WITH NEW HARDWARE, INSTALL CUSTOMER PROVIDED SEATBELT INSTALL ALL REMOVED PARTS.
Want Stefan's expert advice? Ask your question now. Its free!
153 reviews
Jose
10 years of experience
Jose did an excellent and professional job
2003 MERCEDES-BENZ CLK320 - ELECTRIC PROBLEMS INSPECTION
Want Jose's expert advice? Ask your question now. Its free!
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
2001 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$185.65Shop/Dealer Price$239.97 - $345.76
1998 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$242.09Shop/Dealer Price$310.65 - $458.87
2005 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$183.51Shop/Dealer Price$237.33 - $341.55
2003 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.20Shop/Dealer Price$283.23 - $415.00
1998 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$231.83Shop/Dealer Price$297.71 - $438.15
1999 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$245.34Shop/Dealer Price$314.57 - $465.13
2000 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.15Shop/Dealer Price$315.75 - $467.03
2002 Mercedes-Benz CLK320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$183.51Shop/Dealer Price$237.41 - $341.68
Show example Mercedes-Benz CLK320 Oxygen Sensor Replacement prices

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com