Genuine BMW X5 X6 & Rolls-Royce Oxygen Sensor 11787576673 –2012–2019

When an oxygen sensor begins to fail, the engine's computer cannot accurately calculate the air-to-fuel ratio. Common symptoms include:

An illuminated Check Engine Light (CEL) on your dashboard.

A sudden and significant drop in fuel economy.

A rough, surging, or erratic engine idle.

A strong smell of unburned fuel (rotten egg or sulfur smell) from the exhaust.

This is a 100% Genuine BMW / Rolls-Royce part. Because oxygen sensors are highly sensitive electrical components that dictate how your engine runs, using Genuine OEM sensors is strongly recommended. They provide the exact voltage ranges and response times your vehicle's Engine Control Unit (ECU) expects, preventing the persistent "Check Engine" lights often caused by cheap aftermarket alternatives.

Yes, it is considered best practice by technicians to replace oxygen sensors in pairs (both bank 1 and bank 2). Because your BMW X5/X6 or Rolls-Royce features a dual-bank engine (V8 or V12), replacing just one sensor can cause the ECU to read a brand-new, fast-responding sensor on one side and an old, sluggish sensor on the other. This imbalance can cause uneven fueling and rough running conditions.

Yes, we ship to most countries worldwide.

You can track your order directly through our website by following these steps:

1. Go to the Europarts360 Tracking Page.
2. You will see an option to search by Tracking Number or Order ID.
3. Enter your number in the search bar.
4. Click the "Track" button to view the current status of your shipment.

We offer a 14-day return policy for all unused items in original packaging.

This warranty covers all eligible products purchased through our website for 6 months from the date of purchase.