Select Vehicle
BMW
Mini
Create an account to be able to build Wish Lists.
Please ensure your correct model is selected
This product was last offered at the strikethrough price on
05-07-2026
Bad oxygen sensors can cause check engine lights and poor fuel mileage. Replace your faulty sensor with this high quality Bosch sensor to turn off your check engine light and restore fuel mileage.
This is the pre-cat oxygen sensor for cylinders 1-3 for BMW E46 M3. Bosch # 13 949. This is a OEM replacement part for BMW part # 11781743994.
Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.
As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
This item fits the following BMWs:
2001-2006 E46 BMW M3 M3 convertible
2001-2002 Z3 BMW M Roadster M Coupe
This product was last offered at the strikethrough price on
04-01-2026
The plastic hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.
This kit includes the needed hoses, oil separator, mounting grommet, and hardware.
Fits the following BMWs:
1996-1999 E36 BMW 323is/ic 328i/is/ic M3
1996-08/1998 E39 BMW 528i
1996-2000 Z3 BMW with M52/S52
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
07-08-2026
Rubber breather pipes in various BMW applications are susceptible to cracking. Over time, engine heat and weather conditions can weaken these hoses, leading to breaks or leaks. This results in significant vacuum leaks that can severely affect engine performance.
Moreover, BMW faces a problem with oil separators freezing in cold weather, particularly if the engine isn't adequately warmed up during driving. Typical signs include a howling noise and subsequent oil leaks.
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-19-2026
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
Turner Motorsport presents the Crankcase Ventilation System Refresh Kit for BMW owners experiencing malfunctioning or aged CCV systems. This comprehensive kit includes all necessary hoses to complete a refresh, ensuring optimal performance and reliability for your BMW's CCV system.