Bosch 17112 Oxygen Sensor - Upstream

Bosch Wideband O2 Sensor for Mini Cooper

Bosch 17112 is an Actual OE wideband air-fuel oxygen sensor built for precise upstream monitoring on select Mini Cooper models. It delivers continuous lambda measurement for accurate fuel control, stable drivability, and lower emissions in normal and high-load operation.

Key Features

• Wideband A/F oxygen sensor with continuous air-fuel ratio measurement
• Heated design for faster sensor warm-up and quicker closed-loop operation
• Specific fit for the upstream position on select 2007-2012 Mini Cooper applications
• 5-wire harness with blade terminals and oblong male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• OE-style replacement from Bosch Actual OE Oxygen Sensor line

Product Details

Bosch 17112 is part of Bosch’s Actual OE Oxygen Sensor line, which focuses on OE-level sensor design and calibration for modern engine management systems. This wideband sensor uses a planar pump-cell design and optimized heater control to provide detailed feedback to the ECU across the full lambda range. For 2007-2012 Mini Cooper upstream oxygen sensor replacement, Bosch 17112 supports accurate mixture control where the engine management system depends on fast, precise exhaust feedback. This part cross-references Bosch 17112 for the same application.

What This Sensor Helps Address

• Check engine light related to upstream oxygen sensor performance
• Rough idle or inconsistent air-fuel control
• Reduced fuel economy caused by inaccurate exhaust feedback
• Emissions test failures tied to sensor response issues
• Delayed closed-loop operation after cold start

Installation Notes and Tips

Fits 2007-2012 Mini Cooper, upstream. Confirm the connector shape, wire count, thread size, and sensor position before installation. The sensor is specific fit and includes the wiring harness. Use proper oxygen sensor service tools and follow factory torque specifications when installing into the exhaust bung.

Quality Assurance

Bosch has more than five decades of OE development in engine management and oxygen sensor technology. The 17112 is built as a standard replacement part with OE-proven design principles for reliable operation in demanding thermal conditions.