BMW 1 3 5 6 7 Series X3 X5 X6 Z4 Post-Cat Oxygen Sensor 11787614322 (02–18)

This specific Genuine BMW oxygen sensor is incredibly versatile and fits a wide array of BMW engines from 2002 to 2018. It is compatible with select models across the 1 Series, 3 Series, 5 Series, 6 Series, and 7 Series, as well as the X1, X3, X5, and Z4 line-ups. Because fitment depends heavily on the specific engine code (e.g., N52, N54, N55), you must verify compatibility using your vehicle's VIN before purchasing.

Unlike a failing upstream sensor, a bad downstream sensor typically will not cause severe engine performance issues like rough idling or stalling. Instead, the most common symptoms include:

A stubborn Check Engine Light (CEL) on your dashboard.

Diagnostic Trouble Codes (DTCs) related to catalytic converter efficiency (such as P0420 or P0430) or sensor heater circuit malfunctions.

Failing a mandatory state emissions or smog inspection.

Generally, no. Because the post-cat sensor (11787614322) does not dictate the engine's air-fuel mixture, a failure here usually will not noticeably impact your gas mileage. If you are experiencing terrible fuel economy alongside a Check Engine Light, your upstream oxygen sensor is likely the culprit.

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.