How much does it cost to replace the oxygen sensor on a Lexus IS250?
Replacing a single oxygen sensor on a Lexus IS250 typically costs about $150 to $350 when you include parts and labor. Replacing all four sensors commonly ranges from roughly $500 to $1,200 or more, depending on sensor type, labor rates, and whether you need upstream or downstream units.
The IS250, produced from 2006 to 2013, generally uses four O2 sensors: two upstream sensors located before each bank's catalytic converter and two downstream sensors after the converters. The exact price depends on which sensors are faulty, whether you use OEM or aftermarket parts, and the garage’s hourly rate. The following sections break down the main cost drivers and typical price ranges you can expect.
What affects the cost
Several factors determine how much you’ll pay to replace oxygen sensors on the IS250. Understanding them helps you plan and budget for the repair.
- Number of sensors replaced: Cars with four sensors will cost more than replacing a single sensor.
- Sensor type: OEM sensors (recommended by many dealers) are usually more expensive than aftermarket equivalents, which can still meet performance standards.
- Sensor location: Upstream (pre-cat) and downstream (post-cat) sensors can have different prices and labor times.
- Labor rate: Hourly rates vary by region and shop, from entry-level studios to dealership service bays.
- Diagnostic work: Some shops charge for diagnosis or code clearing, which may be included in the replacement job at certain shops.
- Vehicle condition: If the exhaust bolts are corroded or seized, extra labor may be required to remove and replace fasteners.
Conclusion: The total cost is a function of how many sensors you replace, the type of sensors chosen, local labor rates, and any ancillary labor required to access or remove seized parts.
Typical price ranges for the Lexus IS250
Below are common pricing scenarios to help you estimate what you’ll pay. Prices assume standard installation and typical market rates; actual quotes can vary by region and shop.
- Single oxygen sensor replacement (parts + labor): $150–$350. This covers one sensor, whether upstream or downstream, with standard labor time.
- Two sensors replacement (parts + labor): $350–$700. Often the two sensors on one bank or one upstream and one downstream on a single bank.
- All four sensors replacement (parts + labor): $500–$1,200 or more. Four sensors (two upstream, two downstream) is common for IS250s that need comprehensive replacement, especially if multiple codes point to sensor failure.
- Parts variety: OEM sensors may push the upper end of these ranges, while aftermarket sensors can reduce the cost, sometimes with comparable performance. Labor time is the primary variable in multi-sensor jobs.
Conclusion: For most IS250 owners, replacing one O2 sensor typically falls in the $150–$350 range, while replacing all four sensors commonly lands in the $500–$1,200+ range, depending on parts and local labor rates. Always verify which sensors are faulty with a diagnostic scan and obtain multiple quotes to ensure fair pricing.
Notes on diagnostics and maintenance
Before authorizing replacement, a mechanic should confirm which sensor(s) are malfunctioning using OBD-II codes and, if possible, live data from the engine control module. In some cases, a failing sensor triggers codes that point to a specific sensor, allowing targeted replacement and potentially saving money by avoiding unnecessary parts changes.
Summary: If you’ve been told your Lexus IS250 needs an oxygen sensor replacement, expect a broad price range that hinges on how many sensors are replaced, sensor type, and local labor rates. A typical single sensor replacement is around $150–$350, while replacing all four sensors can cost $500–$1,200 or more. Get a diagnostic first, compare quotes from a few shops, and decide between OEM and aftermarket parts based on reliability and warranty considerations.
Summary
In practical terms, most IS250 owners pay modestly for an individual sensor and substantially more when multiple sensors must be replaced. Planning for a range and seeking multiple quotes will give you the best sense of current pricing in your area. Keeping up with periodic diagnostics can help avoid unnecessary replacements and keep costs predictable.
Can I still drive with a bad O2 sensor?
You can still drive with a bad O2 sensor, but it is not recommended because it can lead to poor fuel economy, engine misfires, and damage to the catalytic converter. Driving with a faulty sensor is generally safe for short distances, but it is best to get it replaced as soon as possible to avoid more expensive repairs.
This video explains the potential consequences of driving with a bad O2 sensor: 42sMy Auto LifeYouTube · Sep 6, 2024
Risks of driving with a bad O2 sensor
- Poor fuel economy: The engine may run too rich (using too much fuel) or too lean (using too little fuel), which lowers your gas mileage.
- Engine damage: Running the engine with the wrong air-fuel mixture can lead to poor performance, misfires, and potentially harm other components.
- Catalytic converter damage: A consistently rich fuel mixture can cause unburnt fuel to enter the catalytic converter, overheating and clogging it, which is an expensive part to replace.
- Failed emissions tests: A bad O2 sensor will likely cause your vehicle to fail an emissions test due to higher pollution levels.
What to do
- Schedule a replacement: Since the issue can lead to costly damage, it is best to have the O2 sensor replaced by a mechanic as soon as you can.
- Monitor performance: Pay attention to changes in your car's performance, such as rough idling, poor acceleration, or a check engine light, and address them promptly.
Is it worth fixing an O2 sensor?
A: Yes, replacing a faulty oxygen sensor can improve fuel efficiency by ensuring proper air-fuel mixture and combustion.
How much is the O2 sensor on a Lexus IS250?
Suitable For Lexus IS250 300 GSE2 89465-30730 Aftermarket Oxygen Sensor. $266.95.
How much does it cost to replace the oxygen sensor on a 2009 Lexus IS250?
The average cost for a Lexus IS250 Oxygen Sensor Replacement is between $424 and $563. Labor costs are estimated between $192 and $282 while parts are priced between $232 and $282. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
