Original BMW Crankcase Vent Vacuum Pipe for BMW 2, 3, 4, 5 Series, X1, X3, X4, X5, and Z4 (2012–2018)

BMW's small vacuum pipe, part 11-15-7-603-816, is a genuine engine pipe sold here as a crankcase vent pipe for N20 and N26 four-cylinder BMW models from 2012–2018, including the 228i, 320i, 328i, 428i, 528i, X1, X3, X4, X5 xDrive40e, and Z4 sDrive28i. A crankcase ventilation system takes the blow-by gas that collects inside the crankcase and routes it back into the intake to burn as part of the normal charge, which keeps pressure from building up and pushing past the engine seals. Hoses and pipes in that system work in heat, oil vapor, and pressure, so they age and need replacing. This pipe weighs only 28 g, and BMW has produced it since March 2011. It is made in Poland.

Original BMW Parts carry a 24-month parts warranty.

One part number covers a wide spread of chassis. BMW's parts data applies it to the F22 2 Series, F30 sedan and F34 Gran Turismo 3 Series, F32 and F36 4 Series, F10 5 Series, E84 X1, F25 X3, F26 X4, F15 X5, and E89 Z4. Every application uses the N20 turbocharged four-cylinder or its N26 variant, so the engine is the deciding factor rather than the body. Plastic vent fittings become brittle with heat and oil exposure, and their clips or connectors break easily during removal or during nearby service work, which is a common reason to have a replacement on hand.

Technical Details

• Manufacturer: BMW, Original BMW Parts
• Part number: 11-15-7-603-816
• BMW part name: Vacuum pipe
• Weight: 28 g (0.99 oz)
• Production start: March 2011
• Engines: N20 and N26 four-cylinder
• Made in Poland
• Sold individually
• Warranty: 24 months on Original BMW Parts

Common Questions

Why does BMW call this a vacuum pipe?
Vacuum pipe is BMW's official name for this part number. It belongs to the ventilation plumbing on the N20 and N26 engines.

Does it fit the N26 version of the 328i and 428i?
Yes. BMW applies the same pipe to both the N20 and N26 versions of these models.

Will a cracked vent pipe set a check engine light?
A failed crankcase breather line lets in unmetered air, which can trigger an intake leak or airflow fault and, in severe cases, rough running.

Fitment & Compatibility

Use the fitment table below to confirm year, model, submodel, and application notes before ordering. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.