Bosch 18107 Oxygen Sensor - Downstream Right

Bosch Validated Oxygen Sensor for Audi Q7

The Bosch Validated Oxygen Sensor 18107 is a specific-fit, narrow-band heated O2 sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for the 2011-2015 Audi Q7, downstream right application.

Key Features

• Specific-fit oxygen sensor for the downstream right position
• Narrow-band heated sensor design for closed-loop fuel control
• 4-wire configuration with blade terminals and male connector
• Threaded mounting with 18 mm thread size and 22 mm hex size
• Wiring harness included with a 23.5 in harness length
• Metal housing and high-temperature-resistant construction
• Bosch Validated Oxygen Sensor line backed by OE development experience

Product Details

Bosch part number 18107 is engineered as a standard replacement oxygen sensor for the Audi Q7 downstream right location. Bosch’s validated oxygen sensor line draws on decades of OE development, using ceramic sensing elements and controlled heater operation to deliver accurate lambda feedback across changing exhaust temperatures and vibration loads. This helps the engine management system maintain the correct air-fuel ratio during normal driving and warm-up operation.

Fits 2011-2015 Audi Q7, downstream right. This part cross-references Audi OE part number 4L0906262H for the same application. Bosch 18107 is a practical choice when replacing a worn narrow-band heated sensor on the Audi Q7.

What It Helps Address

• Fault codes related to oxygen sensor response or heater circuit performance
• Unstable fuel trim readings from an aging downstream sensor
• Reduced emissions control caused by inaccurate exhaust oxygen feedback
• Rougher combustion control after sensor contamination or thermal wear
• Delayed closed-loop operation during engine warm-up

Installation Notes and Tips

Confirm the downstream right location before installation and match the connector, thread size, and harness length to the original sensor. Use the 22 mm hex size for removal and installation, and inspect the exhaust bung threads for damage or corrosion before threading in the new sensor. Clear diagnostic trouble codes after installation and verify sensor operation with a scan tool.

Quality Assurance

Bosch supplies oxygen sensors with OE-proven engineering and validated performance standards developed from long-term original equipment experience. The Bosch Validated Oxygen Sensor 18107 is built to deliver consistent signal accuracy and durable operation in demanding exhaust conditions.