Mercedes-Benz 560SEC Oxygen Sensor Replacement at your home or office.

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$221.97 - $248.37

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Oxygen Sensor Replacement Estimate for Mercedes-Benz 560SEC

Mercedes-Benz 560SEC Oxygen Sensor Replacement costs $235 on average.

CarServiceEstimateShop/Dealer Price
1989 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$368.95Shop/Dealer Price$460.56 - $688.99
1987 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$368.95Shop/Dealer Price$460.66 - $689.17
1991 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$406.75Shop/Dealer Price$505.40 - $757.57
1986 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$368.95Shop/Dealer Price$463.60 - $694.32
1989 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$401.75Shop/Dealer Price$499.52 - $751.03
1986 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$406.75Shop/Dealer Price$503.88 - $754.90
1987 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$406.75Shop/Dealer Price$504.15 - $755.37
1988 Mercedes-Benz 560SECV8-5.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$401.75Shop/Dealer Price$500.49 - $752.72
Show example Mercedes-Benz 560SEC Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service

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.

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Meet some of our expert Mercedes-Benz mechanics

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Excellent Rating


YourMechanic Mercedes-Benz 560SEC Service

Average Rating

4.4/5

Number of Reviews

7

Rating Summary
6
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Paul

24 years of experience
207 reviews
Paul
24 years of experience
Mercedes-Benz 560SEC - Valve Cover Gasket - Las Vegas, Nevada
Paul did work on a older merecedes I own. I thought for sure I was,going to be in for a whole lot of money and be told there wasn't any other thing I could do. I was so wrong. Paul definitely knows his profession. I also couldn't be more pleased about price. My thanks to him and of course Your Mechanic for having a mechanic who knows what to do.

Jason

31 years of experience
276 reviews
Jason
31 years of experience
Mercedes-Benz 560SEC - Tighten belt cover and clean area - San Jose, California
I'm glad I found Jason to work on my car. He's terrific! He was friendly & gave sound advises & tips.

Eugenio

25 years of experience
133 reviews
Eugenio
25 years of experience
Mercedes-Benz 560SEC - AC is not working - Alexandria, Virginia
great service early and nice

Grzegorz

40 years of experience
473 reviews
Grzegorz
40 years of experience
Mercedes-Benz 560SEC - Car is not starting - San Francisco, California
He is a really pleasant man,who has a good attention to detail,as it happens there was no way to get the car started, due to what appears to be failed fuel pumps,which is what i suspected. I am 70 years old,fixing it has lost its appeal,and did not have all the tools to fix it with me.Therefore being a mechanic my self in the past, i can only say he knows what he is doing.If the parts were at hand he would have repaired it no problem i'm quite sure,so for me he gets top marks,in all departments. Yours sincerely Barry Vare

Excellent Rating


YourMechanic Mercedes-Benz 560SEC Service

Average Rating

4.4/5

Number of Reviews

7

Rating Summary
6
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0
0
1
6
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1
Number of Mercedes-Benz 560SEC services completed
77+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
900+
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