Original BMW Vent Pipe for BMW 2, 3, 4, 5, and 7 Series, X3, and X4 with B46/B48 Engine (2016–2021)

This Original BMW vent pipe, part number 11-15-8-645-343, is a vent pipe for B46 and B48 engines in the 230i, 330i, 330e, 430i, 530i, 530e, 740e xDrive, X3, and X4 built from 2016 to 2021. BMW puts it into production from July 2015, and it weighs 33 g (1.16 oz). It is made in Poland and supplied as a single piece.

Original BMW Parts carry a 24-month parts warranty.

The part number is not tied to a single chassis. That is why one pipe covers the F22 and F23 2 Series, the F30, F31, and F34 3 Series, the F32, F33, and F36 4 Series, the G30 and G31 5 Series, the G11 and G12 7 Series, and the G01 X3 and G02 X4. On the 330e, 530e, and 740e, BMW codes the engine as B48X or B46X. The hybrid models take the same pipe as the gasoline-only cars.

Technical Details

• Manufacturer: BMW
• Part number: 11-15-8-645-343
• BMW part name: vent pipe
• Weight: 33 g (1.16 oz)
• Production start: July 2015
• Engine family: B46 and B48, including the B46X and B48X hybrid versions
• Country of manufacture: Poland
• Sold as: one piece
• Warranty: 24 months

Common Questions

Does the 330e use a different pipe than the 330i?
No. BMW uses this same part number on the 330e plug-in hybrid with the B48X engine and on the gasoline 330i.

Where is this part made?
This Original BMW vent pipe is manufactured in Poland.

Fitment & Compatibility

Use the fitment table below to confirm year, make, model, submodel, and any notes tied to your exact vehicle. Pay close attention to engine, chassis, position, and option-specific details before ordering. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.