Oxygen Sensor for 2021-2026 BMW M3 & More - Bosch 17250

Bosch 17250 oxygen sensor for the 2021-2026 BMW M3 6-cylinder 3.0L and other vehicles measures the air-fuel ratio continuously and sends it to the ECU. This upstream wideband oxygen sensor gives the ECU more detailed data than a traditional switching sensor, which helps it hold the air-fuel ratio accurately for fuel efficiency and lower emissions.

• Continuous air-fuel ratio measurement across the full lambda range
• Metal housing, integrated heater element and TSP coating resist vibration, corrosion and contamination in exhaust up to 1,880°F
• Reaches operating temperature in less than 7 seconds for quick closed-loop control and cold starts
• Fast light-off and optimized heater control give reliable readings through rapid load changes and thermal cycling

Quick facts

• Part: Bosch 17250 oxygen sensor
• Fits: 2021-2026 BMW M3 6-cylinder 3.0L and other vehicles
• Position: Upstream
• Material: Metal housing
• Condition: New

A check engine light, rough running or worse fuel economy can mean an oxygen sensor is wearing out. Those signs alone do not prove the sensor is at fault, since an exhaust leak near it can skew the readings too.

Fits

Vehicles it fits include the 2021-2026 BMW M3 6-cylinder 3.0L, the 2021-2026 BMW M4 6-cylinder 3.0L and the 2023-2026 BMW M2 6-cylinder 3.0L, along with many other BMW models. If your car is not named here, look it up by year and model in the "Vehicles it fits" section. This listing is one sensor, and the 2021-2026 BMW M3 6-cylinder 3.0L takes one.

Specifications

In the box

One oxygen sensor with its wiring harness.

Installation notes

• Direct-fit connectors are made for quick installation.
• Conductive anti-seize is pre-applied to the threads.