Oxygen Sensor for 2017-2021 BMW 230i & More - Bosch 17103

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$136.99

MPN: 17103

Item Package Quantity: 1

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Bosch Oxygen Sensor P/N:17103

$136.99

Description

Bosch 17103 oxygen sensor for the 2017-2021 BMW 230i 4-cylinder 2.0L and other vehicles measures the air-fuel ratio across the full lambda range. As an upstream wideband A/F sensor, it gives the ECU more detailed data than a traditional switching sensor.

Wideband sensor that measures air-fuel ratio continuously rather than switching
Integrated heater element brings the sensor to operating temperature in under 7 seconds
Metal housing and TSP coating resist vibration, corrosion and contamination
Withstands exhaust streams up to 1,880°F
Ceramic construction holds up through rapid load changes and harsh thermal cycles

Quick facts

Part: Bosch 17103 oxygen sensor
Fits: 2017-2021 BMW 230i 4-cylinder 2.0L and other vehicles
Position: Upstream
Material: Metal housing
Condition: New

A check engine light, uneven running or poor fuel economy can mean this sensor is worn, though an exhaust leak ahead of it or a faulty mass airflow sensor can be behind them instead. If the sensor is the cause, this one replaces it.

Fits

It is listed for a wide range of BMW models, including the 2017-2021 BMW 230i 4-cylinder 2.0L, the 2017-2021 BMW 230i xDrive 4-cylinder 2.0L and the 2018-2021 BMW X3 4-cylinder 2.0L. A car on the list needs one sensor, and this listing is one sensor.

Specifications

Fit and size

Position: Upstream
Quantity per vehicle: 1
Thread size: M18 - 1.5
Hex size: 22 mm
Overall length: 22.9 in
Length (sealing surface to end of connector): 21.7 in
Terminal quantity: 5

Build and materials

Sensor type: Wide-band
Mounting type: Threaded
Housing material: Metal
Wiring harness: Included
Condition: New
Warranty: Bosch 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks

In the box

One oxygen sensor with its wiring harness.

Installation notes

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

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

Will this BMW X3 oxygen sensor fit the 2018-2021 BMW X3 4-cylinder 2.0L?

Yes. Bosch 17103 is listed for the 2018-2021 BMW X3 4-cylinder 2.0L, and that car takes one. For another BMW, look up your car on the Buyer's Guide tab.

Does this Bosch O2 sensor come with its wiring harness?

Yes. Bosch 17103 is one oxygen sensor with its wiring harness, and conductive anti-seize is already applied to the threads.

What thread and hex size does this Bosch premium oxygen sensor have?

The thread is M18 - 1.5 and the hex size is 22 mm. The connector has 5 terminals.

Is this upstream sensor a wideband or a switching type?

It is a wide-band sensor. It reads the air-fuel ratio continuously across the full lambda range instead of only switching between rich and lean.

What warranty covers Bosch 17103?

Bosch gives a 1-year, unlimited-mileage warranty on this oxygen sensor for non-commercial passenger cars and light trucks.