How much does it cost to replace the oxygen sensor on a Acura?

For most Acura models, replacing a single oxygen sensor typically costs about 150 to 500 total, depending on sensor type (upstream vs downstream), OEM vs aftermarket parts, and local labor rates. Independent shops usually charge less than dealerships. The price includes parts, labor, and any standard diagnostic fees.

Understanding what affects the price

The final quote depends on several factors, including which sensor is failing, how easy it is to access, and where you get service. Below is a breakdown to help you plan.

Cost range and breakdown

Here is a rough breakdown to help you estimate the total before you commit to a shop visit.

• Parts: Oxygen sensors range from about $25 to $120 for aftermarket units, and $100 to $250+ for OEM sensors. Heated sensors or sensors for models with more than one sensor can push parts costs higher.


• Labor: Replacing an oxygen sensor typically takes 0.5 to 1.5 hours, but tight access or multiple sensors can extend this to around 2 hours. Labor rates vary by region and shop, often $75–$125 per hour.


• Diagnostics/fees: Some shops include the diagnostic scan in the repair price; others charge a separate diagnostic fee of about $50–$100 if no repair is performed.


• Additional costs: If multiple sensors are faulty or if access requires extra work, the total will increase. In rare cases, related exhaust or wiring issues may add parts or labor.

These ranges cover typical single-sensor replacements. If your Acura uses more than one sensor or if a downstream sensor is the culprit, expect a higher total.

What affects the price

Several factors most influence the final price you pay for an oxygen sensor replacement.

• Sensor type and location: Upstream (before the catalytic converter) and downstream (after the catalytic converter) sensors may have different prices, and sensors located in hard-to-reach spots cost more to replace.


• OEM vs aftermarket parts: OEM sensors tend to be pricier but are designed for exact fit and longevity; aftermarket sensors vary in price and quality.


• Vehicle model and year: Some Acura models require specific sensors or have unique mounting that affects labor time.


• Shop type: Dealerships generally charge more than independent shops; some shops offer fixed-price packages for common replacements.


• Number of sensors: Replacing more than one sensor or addressing a broader exhaust issue increases the total.


• Geographic region and current labor rates: Urban or high-cost areas raise labor costs.

To get an precise quote, request itemized estimates from several reputable shops or your local Acura dealer, including parts, labor, and any diagnostic fees.

Tips to save money

These practical steps can help you reduce costs without compromising reliability.

• Get multiple estimates from independent shops and compare with a dealership price.


• Ask for OEM vs aftermarket options and weigh warranty and expected life.


• If due for other maintenance, consider batching the service to reduce incremental labor time.


• Look for coupons or fixed-price packages for O2 sensor replacement offered by local shops.

Concluding note: Replacing the correct sensor and addressing any underlying issues (like exhaust leaks or misfires) helps prevent repeat visits and additional costs.

Summary

In summary, replacing an oxygen sensor on an Acura typically runs about 150 to 500 for a single sensor, with higher totals at a dealership and when OEM parts or multiple sensors are involved. Parts cost more for OEM, and labor costs rise in regions with higher rates or when access is difficult. Obtain several written quotes, confirm what’s included, and consider OEM versus aftermarket options. A proper diagnosis ensures you fix the real problem and avoid unnecessary expenses.

Is it worth replacing an oxygen sensor?

A well-working O2 sensor will be an important component of a consistent running car. Still, a bad oxygen sensor can probably lead to bad gasoline efficiency, a bad odor in your vehicle, and a below-level running engine.

Is replacing an oxygen sensor expensive?

No, replacing an O2 sensor isn't excessively expensive, with a typical professional replacement costing between \$150 and \$600, including parts and labor. However, costs can be higher for premium vehicles or when sensors are hard to access, potentially reaching \$600–\$800. DIY replacement is often cheaper, with part costs ranging from approximately \$20 to \$300 per sensor. 
This video explains the cost of replacing an oxygen sensor: 1mLearnToDIY360YouTube · Jun 19, 2025
Factors that influence cost

• Labor: Professional installation adds to the cost. A single sensor can take a technician about 30 minutes to replace under normal circumstances. 
• Sensor location: The sensor's position affects the price. Upstream sensors (before the catalytic converter) can be more difficult and expensive to replace than downstream sensors. 
• Vehicle make and model: The make, model, and age of your car can impact the price, especially for luxury or import vehicles that may have more expensive parts or require more complex labor. 
• Corrosion: If the old sensor is rusted or seized, it can significantly increase labor time and cost. 
• Parts: The price of the sensor itself varies. OEM (Original Equipment Manufacturer) parts are generally more expensive than aftermarket alternatives. 

Cost-saving tips

• DIY: If you are comfortable with car repairs, replacing the sensor yourself can be significantly cheaper. You may need a special O2 sensor tool to make the job easier. 
• Shop around: Compare prices at different shops to find the most competitive rate for your area. 
• Check warranty: See if your vehicle warranty covers the repair. 

You can watch this video to learn why replacing an oxygen sensor can sometimes be more expensive than you think: 1mEC Auto RepairYouTube · Apr 23, 2024

How much does it cost to replace the oxygen sensor on a Acura MDX?

The total cost to replace an Acura MDX O2 sensor typically ranges from $200 to $450, with the part costing between $50 and $200 and labor costing the rest. The final price depends on the specific sensor needed (upstream/downstream), whether you use OEM or aftermarket parts, and your mechanic's labor rates.
 
You can watch this video to learn how to replace an O2 sensor on an Acura MDX: 51sHighMiles GarageYouTube · Sep 4, 2025
Cost breakdown

• Part cost: Expect to pay anywhere from about $50 to over $200 for a single oxygen sensor, depending on the brand and if it's an OEM (Original Equipment Manufacturer) part. 
• Labor cost: Labor can add another $150 to $250 or more, depending on the mechanic's hourly rate and how long the job takes. A professional can often complete the job in 30 minutes to an hour per sensor. 

Factors that influence the cost

• Part type: Upstream sensors (before the catalytic converter) and downstream sensors (after the catalytic converter) have different costs. Location can also affect labor time. 
• Part brand: Using an official Acura part will be more expensive than a comparable aftermarket part from brands like Bosch, NTK, or Walker. 
• Labor rates: Shop labor rates vary by location and shop. A dealership will likely charge more than an independent mechanic. 

Can I drive a car with a bad oxygen sensor?

Yes, you can drive with a bad oxygen sensor, but it is not recommended for extended periods as it can lead to decreased fuel efficiency, poor engine performance, and potential damage to your catalytic converter. If the check engine light is on and flashing, do not drive and have the vehicle serviced immediately. 
Potential problems from driving with a bad O2 sensor

• Poor fuel economy: The car's computer may incorrectly adjust the air-fuel mixture, causing it to run too rich and use more fuel than necessary. 
• Engine performance issues: You may experience a rough idle, engine hesitation, or a loss of power. 
• Catalytic converter damage: If the engine runs too rich, unburnt fuel can enter the exhaust and overheat the catalytic converter, leading to a costly failure. 
• Increased emissions: A failing O2 sensor can cause your vehicle to fail an emissions test. 
• Other issues: You may also notice unusual smells from the exhaust or other knocking and pinging sounds. 

What to do

• Address the issue promptly: Get the sensor replaced as soon as you can to avoid further problems. 
• If the check engine light is flashing: Do not drive the car. This indicates a serious problem and could cause immediate damage. 
• Consider the age of your vehicle: Sensors can last a long time, but if your vehicle is older or has high mileage, it may be a good idea to have them checked and replaced for better performance and lower emissions, recommend Sterling McCall Toyota and Finnegan Chevrolet Buick GMC.