BMW 528xi 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

(16)

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

(16)

Oxygen Sensor Replacement Service

How much does a Oxygen Sensor Replacement cost?

On average, the cost for a BMW 528xi Oxygen Sensor Replacement is $908 with $418 for parts and $490 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 BMW 528xiL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$1379.42Shop/Dealer Price$1610.70 - $2254.93
2008 BMW 528xiL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$2930.01Shop/Dealer Price$3546.00 - $5368.70
Show example BMW 528xi 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 BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(16)

Rating Summary
13
0
0
0
3
13
0
0
0
3

Mohammed

10 years of experience
152 reviews
Mohammed
10 years of experience
BMW 528xi L6-3.0L - Check Engine Light is on - Raleigh, North Carolina
Mohammed is amazing!! Provided great service that was timely and detailed. He even provided additional assistance after the service was done via text. Will definitely recommend and work with again. Awesome job!

Andrew

12 years of experience
962 reviews
Andrew
12 years of experience
BMW 528xi L6-3.0L - Coolant is leaking - Kansas City, Missouri
I just love when he works on my car

Joe

16 years of experience
21 reviews
Joe
16 years of experience
BMW 528xi L6-3.0L - Valve Cover Gasket - Aliquippa, Pennsylvania
I was well pleased with my mechanic, Joe today. He called and came on time, professional as well as polite answered all questions asked... Yes I'm quite satisfied and have already given recommendations!!!! He also showed me the old piece then told me the problem with it....

Theodore

17 years of experience
1794 reviews
Theodore
17 years of experience
BMW 528xi L6-3.0L - Car is not starting - Redmond, Washington
Theodore was excellent with my bimmer. He's knowledgeable, efficient and experienced with German cars. Highly recommend him!

Excellent Rating

(16)

Rating Summary
13
0
0
0
3
13
0
0
0
3
Number of BMW 528xi services completed
176+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform

Recent articles & questions

How to Replace an Intake Air Temperature Sensor
An air temperature sensor, or air charge temperature sensor, signals a car’s computer about the air-to-fuel ratio. Replacing one requires few tools.
How Do Sensors Get Dirty or Damaged?
Car sensors measure and relay vital information to the ECU. Some sensors can get dirty from normal use, or fail if the car overheats or has a problem.
How to Replace an Air Cleaner Temperature Sensor
The air cleaner temperature sensor allows the computer to adjust engine timing and air/fuel ratio. A rough idle or "engine lag" are signs of failure.

Car slips out of gear

Hello! I suggest having the transmission module tested by a technician. There are certain specifications of resistance and voltages a module must have to properly work. Both resistance and voltage can be tested with a multimeter. If it fails testing...

ABS, CEL lights on

If the ABS light is not illuminated, then it's likely operating correctly as it generally illuminate when a fault is present. The leaking of the battery is a cause of concern. It signifies one of two issues: a damaged battery...

The codes p0012 and p0015 was shown on the scanner when I had my car checked.

Hi there. The codes P0012 (https://www.yourmechanic.com/article/p0012-obd-ii-trouble-code-camshaft-position-a-timing-over-retarded-bank-1-by-jay-safford) and P0015 (https://www.yourmechanic.com/article/p0015-obd-ii-trouble-code-camshaft-position-b-timing-over-retarded-bank-1-by-jay-safford) are related to the camshaft position sensor. Check the sensor out and make sure that its plugged in. Also, check for power to the sensor. The camshaft sensor keeps the ignition...

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