Emissions System

Bosch Fuel Tank Breather Valve - 13907643106

T#:18468288

Part#: 13907643106

In Stock

Sale - Save 5% $ 76.99

This product was last offered at the strikethrough price on
05-03-2026

$ 73.14 USD

Add to Wish List

Qty

Sale - Save 5%

$ 76.99

This product was last offered at the strikethrough price on
05-03-2026

$ 73.14 USD

Add to Wish List

Common CEL cause on B48/B58/S58. Get your fuel system functioning properly again!

Fuel Tank Breather Valve

T#:25075803

Part#: 13907643106

In Stock

Sale - Save 20% $ 68.99

This product was last offered at the strikethrough price on
05-03-2026

$ 55.19 USD

Add to Wish List

Qty

Sale - Save 20%

$ 68.99

This product was last offered at the strikethrough price on
05-03-2026

$ 55.19 USD

Add to Wish List

OEM Bosch Oxygen Sensor - Cyl. 1-3 -before catalytic converter - E46 ...

T#:3303

Part#: 11787523434

In Stock

Sale - Save 22% $ 210.65

This product was last offered at the strikethrough price on
05-02-2026

$ 165.00 USD

Add to Wish List

Qty

Sale - Save 22%

$ 210.65

This product was last offered at the strikethrough price on
05-02-2026

$ 165.00 USD

Add to Wish List

This is the pre-cat oxygen sensor for bank 1 - cylinders 1-3 for BMW E46 E60 E83 X3 Bosch # 17 215.

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 325xi with M54 engine.
3/2003-2005 E46 BMW 330i 330ci 330xi
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 3.0i - Automatic Transmission Only

Show More Show Less

Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54

T#:640207

Part#: 11617501566

In Stock

Sale - Save 20% $ 32.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 32.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.39 USD

Add to Wish List

BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace this and all the other components of the oil separator system to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3

T#:638072

Part#: 11617504536

In Stock

Sale - Save 20% $ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD

Add to Wish List

Qty

Sale - Save 20%

$ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD

Add to Wish List

This is the BMW crankcase return line that goes from the intake manifold to the top CCV connecting hose. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Bosch Oxygen Sensor - Front

T#:384615

Part#: 11787589121

Ships in 1-2 days

Sale - Save 34% $ 197.99

This product was last offered at the strikethrough price on
05-07-2026

$ 131.43 USD

Add to Wish List

Qty

Sale - Save 34%

$ 197.99

This product was last offered at the strikethrough price on
05-07-2026

$ 131.43 USD

Add to Wish List

Fuel control and emissions sensor

Bav Auto Vent Hose - From Valve Cover to Oil Separator - E36 E39 Z3 ...

T#:579869

Part#: 54546

In Stock

Sale - Save 20% $ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD

Add to Wish List

Qty

Sale - Save 20%

$ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD

Add to Wish List

Bav Auto Crank Case Ventilation Valve - E31 E38 E39 M62 4.4L ...

T#:640206

Part#: 11617501563

In Stock

Sale - Save 20% $ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.39 USD

Add to Wish List

An integral part of the emissions system, the PCV valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes, and poor idle. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M6...

T#:639843

Part#: 11617501562

Special Order: No Guaranteed ETA

Sale - Save 15% $ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

Add to Wish List

Qty

Sale - Save 15%

$ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

Add to Wish List

An integral part of the emissions system, the PVC valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. Often split from underhood heat and age, this vents excess oil into the engine compartment. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M5...

T#:640502

Part#: 11617504535

In Stock

Sale - Save 20% $ 24.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 24.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD

Add to Wish List

Runs from the top of the oil separator up to rear of the intake manifold. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less