BMW Z4 Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Service

How much does a Oxygen Sensor Replacement cost?

On average, the cost for a BMW Z4 Oxygen Sensor Replacement is $312 with $172 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 BMW Z4L6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1461.52Shop/Dealer Price$1768.49 - $2663.89
2012 BMW Z4L4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1143.45Shop/Dealer Price$1396.02 - $2146.53
2007 BMW Z4L6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$1147.70Shop/Dealer Price$1374.79 - $2042.87
2014 BMW Z4L6-3.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$2889.82Shop/Dealer Price$3535.80 - $5456.94
2016 BMW Z4L6-3.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$873.35Shop/Dealer Price$1061.02 - $1610.91
2015 BMW Z4L4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$489.35Shop/Dealer Price$578.69 - $838.83
2013 BMW Z4L4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$811.73Shop/Dealer Price$921.65 - $1230.76
2013 BMW Z4L4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1143.45Shop/Dealer Price$1396.07 - $2146.60
Show example BMW Z4 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.

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Rating Summary
108
4
3
2
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108
4
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4

James

25 years of experience
835 reviews
James
25 years of experience
Z4 2012 - Check Engine Light is on - Orlando, FL
James is awesome knowledgeable , punctual and very professional. Will have James worked on my Z4 for now on .

Edmar

17 years of experience
249 reviews
Edmar
17 years of experience
Z4 2009 - Car is not starting - Southlake, TX
So thankful that Edmar was able to fix my BMW Z4 that would not start. What I assumed was the problem was not actually the issue and Edmar found it and fixed it, and it ended up costing less. Very honest and reliable as well as super knowledgeable. Will definitely call Edmar again!

Tinashe

10 years of experience
534 reviews
Tinashe
10 years of experience
Z4 2014 - Service Light is on - Atlanta, GA
Tinashe is responsive, arriving early for my appointment. He's very knowledgeable and helped me to understand exactly what was going on with my car. During this appointment, we found some routine things that need to be done and I am going to book Tinashe for the work.

Kevin

20 years of experience
478 reviews
Kevin
20 years of experience
Z4 2004 - Starter - Roswell, GA
Kevin is a true pro - he replaced my starter in less than 30mins. He had the special tools that are required to work in tight places to remove the starter and the expertise to get the job done with confidence. I recommend Kevin for your BMW repair job and would seek him out again in the future.

Excellent Rating

(121)

Rating Summary
108
4
3
2
4
108
4
3
2
4
Number of BMW Z4 services completed
1331+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
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