A-tnewb Mini Cooper Oxygen O2 Sensor Kit — 2PCS Upstream & Downstream for 2007–2010 1.6L, OEM Fit & Direct Replacement

A-tnewb 2PCS Oxygen O2 Sensor set is a direct-fit upstream and downstream replacement for 2007–2010 Mini Cooper 1.6L engines, restoring proper exhaust oxygen feedback to the engine control system.

These two oxygen sensors are built as OEM-style replacements for Mini Cooper 1.6L (2007–2010) models, covering both upstream (pre-catalytic converter) and downstream (post-catalytic converter) positions. They are designed to match original part numbers—including 234-5135 and 234-4488—and to deliver consistent voltage signals so your vehicle’s ECU can make accurate air–fuel adjustments.

How do these sensors affect engine performance and fuel efficiency?

Oxygen sensors measure exhaust oxygen levels and send that data to the engine control unit (ECU). Accurate readings enable the ECU to fine-tune fuel delivery and combustion timing, which helps maintain efficient operation and smoother running.

• Restores accurate air–fuel ratio feedback to the ECU
• Helps reduce rough idling and hesitation caused by incorrect fuel trims
• Supports consistent catalytic converter operation by monitoring emissions

Are these A-tnewb sensors a direct fit for my Mini Cooper?

Yes — the A-tnewb set is engineered to be a direct replacement for Mini Cooper 1.6L models from 2007–2010. They match common OEM reference numbers and mounting interfaces so installation is straightforward for the upstream and downstream positions.

• Compatible with 2007–2010 Mini Cooper 1.6L L4 engines
• Replaces OEM numbers: 234-5135, 234-4488, 11787548961, 17107515499
• Includes both upstream and downstream sensors in one kit

What should I expect when installing these oxygen sensors?

Installation typically involves removing the old sensor with an oxygen-sensor socket and threading the replacement into the exhaust bung. Wiring connectors are designed to match factory harnesses, and a proper installation returns normal sensor voltage ranges quickly after startup.

• Standard threaded installation—no special modifications required
• Factory-style electrical connector to plug into existing harness
• Check and clear fault codes after replacement for accurate diagnostics

How durable are A-tnewb oxygen sensors and what warranty is included?

These sensors are manufactured from durable materials intended for sustained exposure to exhaust gases and high temperatures. Each sensor is bench-tested prior to shipping and backed by a one-year unlimited-mileage warranty for added purchaser confidence.

• Constructed for long service life in exhaust conditions
• Professionally tested before shipping for reliable operation
• One-year unlimited-mileage warranty included

Who is this for: The A-tnewb 2PCS Oxygen O2 Sensor kit is aimed at Mini Cooper owners, independent mechanics, and DIY enthusiasts who need an affordable, OEM-style upstream and downstream sensor replacement for 2007–2010 Mini Cooper 1.6L models. Choose this kit if you want straightforward compatibility with factory part numbers, reliable sensor signals for proper ECU control, and a warranty-backed option that fits the original mounting and electrical connections.