Mercedes-Benz SLK280 Oxygen Sensor Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(33)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(33)

Oxygen Sensor Replacement Service

How much does a Oxygen Sensor Replacement cost?

On average, the cost for a Mercedes-Benz SLK280 Oxygen Sensor Replacement is $487 with $347 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Mercedes-Benz SLK280V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1332.12Shop/Dealer Price$1632.70 - $2520.27
2008 Mercedes-Benz SLK280V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1323.11Shop/Dealer Price$1620.60 - $2505.85
2006 Mercedes-Benz SLK280V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$840.39Shop/Dealer Price$1017.24 - $1540.48
2008 Mercedes-Benz SLK280V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$840.39Shop/Dealer Price$1017.24 - $1540.48
2006 Mercedes-Benz SLK280V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1323.11Shop/Dealer Price$1623.22 - $2510.43
2007 Mercedes-Benz SLK280V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$840.39Shop/Dealer Price$1017.49 - $1540.91
Show example Mercedes-Benz SLK280 Oxygen Sensor Replacement prices

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.

Fast and easy service at your home or office

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.

Excellent Rating

(33)

Rating Summary
32
0
0
0
1
32
0
0
0
1

Chris

23 years of experience
2372 reviews
Chris
23 years of experience
Mercedes-Benz SLK280 V6-3.0L - Pre-purchase Car Inspection - Laguna Hills, California
I hired Chris to inspect a car I wanted to purchase. He arrived on time and gave me a very detailed report, took the time to call me after to review details, and share his impression of the car. He was great and very knowledgeable, I would highly recommend him!

Jordan

9 years of experience
144 reviews
Jordan
9 years of experience
Mercedes-Benz SLK280 V6-3.0L - Oil Change - Kissimmee, Florida
Very good mechanic

Jonathan

36 years of experience
522 reviews
Jonathan
36 years of experience
Mercedes-Benz SLK280 V6-3.0L - Brake Pads Replacement (Front) - Land O Lakes, Florida
Jonathan is very good. Knowledge, expertise is top notch. Will use this company again

Sam

18 years of experience
115 reviews
Sam
18 years of experience
Mercedes-Benz SLK280 V6-3.0L - Pre-purchase Car Inspection - Fresno, California
Awesome, Honest, Intelligent, and explains everything clear. Very happy to work with Sam, thank you!!

Excellent Rating

(33)

Rating Summary
32
0
0
0
1
32
0
0
0
1
Number of Mercedes-Benz SLK280 services completed
363+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Replace a Brake Booster Vacuum Sensor
The brake booster vacuum pressure sensor is a vital part of power brake operation. A Check Engine Light or a hard brake pedal are signs of failure.
How to Replace the Oil Temperature Sensor on Most Cars
Oil, as well as the oil temperature sensor, is crucial to the engine lubrication system. A bad sensor can lead to leaks and poor vehicle performance.
What Sensors Make the ABS Work?
When When we are discussing ABS systems it is good to note the year and make of your vehicle because ABS systems have evolved quite a bit over the years, but you also have to know how the ABS system...

Problem starting car and dies while driving

This sounds like it could be a faulty crankshaft sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement) or a camshaft sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement). These engines had problems with both. The hard start and the backfire (https://www.yourmechanic.com/services/engine-is-backfiring-inspection) may be the camshaft sensor. The stall and no start condition...

2010 Ford Fusion SE with I4 Engine - Throttle Position (TP) and Accelerator Pedal Position (APP) sensors

Since the code reads Throttle Body, the sensor on the throttle body under the hood may be the best place to start. The throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) measures the angle of the throttle plate and tries to match the effort...

Car won't start after driving any distance. I have to let it cool down before I can start the engine again.

It's curious that you don't seem to have a code in the ECM. Usually if you have a malfunction that prevents the car from starting, there will be a code resulting. That being said, it sounds like you may have...

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 (855) 347-2779 · hi@yourmechanic.com