Original BMW Crankcase Vent Hose to Valve Cover for BMW 335i, 435i, M235i, M2, and ActiveHybrid 3 (2012–2018)

On N55-powered BMWs, this Original BMW crankcase vent hose routes crankcase gases to the valve cover and fits the 335i, 435i, M235i, M2, and ActiveHybrid 3 built from 2012–2018. Every running engine builds pressure in the crankcase, and the ventilation system carries those gases away so oil vapor can be separated and the air burned in the intake. BMW names the part simply "vent hose" and shows it starting production in November 2011. It is made in Austria and sold as a single piece. Because the hose lives with constant heat, pressure, and oil vapor, it is a common wear item in the crankcase ventilation system.

Original BMW Parts carry a 24-month parts warranty.

BMW uses this one hose across the N55 six-cylinder in several chassis, including the F30 and F34 3 Series, the F32 and F36 4 Series, the F22 2 Series coupe, and the F87 M2. That shared engine is the key match point. That shared engine is the key match point, so confirm your car has the N55. A leaking vent hose lets unmetered air into the engine, which can bring on a check engine light for an intake leak, rough running, or oil residue around the hose.

Technical Details

• Manufacturer: BMW
• Part number: 11-12-7-599-753
• BMW part name: Vent hose
• Connects: crankcase vent to valve cover
• Engine: N55
• Production start: November 2011
• Country of manufacture: Austria
• Sold as: one piece
• Warranty: 24 months

Common Questions

What signs point to a failed vent hose?
Cracks or splits, broken connectors, a check engine light for an air leak, misfire, and oil residue on or near the hose are all typical.

Does this fit four-cylinder 328i or 428i models?
No. BMW assigns it to the N55 six-cylinder only.

PMB Performance carries Original BMW crankcase ventilation parts for the N55 engine.

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.