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BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc) for BMW 3 Series E91 (2006-2012)

The intake manifold takes incoming air from the intake and distributes it to each cylinder. Over the years the manifolds have gotten more sophisticated and complex. Most of the additional work that it does is emissions-related - recirculating vapors back into the engine to be re-used. But there are also performance innovations such as BMW's DISA variable intake runners. All of the modern innovations have a part behind it and here you will find replacement components.

In some BMW models there are performance improvements with intake manifolds. These intake manifold upgrades use mostly BMW parts and are a direct replacement for your stock manifold. We offer manifolds and kits to make the conversion work easier.

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Bav Auto Upper DISA Valve for Intake Manifold - E9x E82 E60 X3 X5 ...

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T#:639842

Part#: 11617560538

In Stock

Sale - Save 20% $ 177.99

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

$ 142.39 USD

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Sale - Save 20%

$ 177.99

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

$ 142.39 USD

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The DISA Valve adjusts the intake manifold runner length to improve performance. When it fails it can lead to a rough idle and perhaps an engine fault code light. This adjusting unit fits cars with N52 or N51 engine - not N52N models. This is the smaller of the 2 DISA Valves on this motor, it is considered the "Upper Disa valve". The lower DISA valve is part number 11617579114 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.

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N52 3-Stage Intake Manifold - BMW E82/88 E9X N52 3.0L

Common upgrade from the 330i model - additional parts needed, see product description

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T#:19792191

Part#: 11617559523

In Stock

Sale - Save 20% $ 474.99

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

$ 379.99 USD

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Sale - Save 20%

$ 474.99

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

$ 379.99 USD

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Replacement 3-Stage intake manifold for your N52-powered BMW.

Universal 10AN ORB To 3/8" Barb

T#:31522993

Part#: RAD20-0530

In Stock at Vendor

$ 37.99 USD

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$ 37.99 USD

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Upgraded Silicone CCV Hose - (11157522931) - N52

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T#:46203577

Part#: 058973LA02

Ships on Apr 5, 2027

$ 101.99

This product was last offered at the strikethrough price on
06-24-2026

$ 78.99 USD

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$ 78.99 USD

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Due to weak plastic construction, the factory plastic crankcase ventilation breather hose is known to fail. After years of exposure to piping-hot engine bay temperatures and chemical-laden oil vapors, the corrugated plastic tubing can crack, crumble, or fail altogether.

We set out to bulletproof your N52 CCV system with a durable silicone breather hose, designed to provide a comprehensive upgrade and permanent replacement for the factory plastic hose. By replacing the flimsy, heat-hardened OEM plastic hose with a four-ply fluorosilicone hose, you'll experience peace of mind knowing your N52 is free from the inevitable return of oil leaks, vacuum leaks, and drivability concerns that would have been.

This breather hose is found at the front of the engine, and is used to connect the oil separator to the valve cover. It replaces OEM part number 11157522931.

Features:

Silicone construction ensures a durable replacement that is sure to outlast OE plastic
Designed as a direct replacement for the factory breather hose
Retains heating function and OE electrical connector
Design:

Four-ply wire-reinforced fluorosilicone hose is designed to resist degradation due to exposure to oil vapors
O-rings are pre-installed in OE connectors for a lasting seal
Includes pre-installed zinc-coated hose clamps for durability and corrosion resistance
Product Development:

Our Silicone CCV Hose Upgrade was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525x...

10X Entries Into Our F80 M3 Sweepstakes

T#:221961

Part#: TMS221961

Ships on Oct 20, 2026

$ 482.99 USD

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$ 482.99 USD

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The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:

11617531423, Genuine BMW oil separator

11617559530, vent hose

11157522931, oil separator hose

11157567802, return hose

11157537701, extraction hose

11617547242, intake manifold gaskets (set of 6)
The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

This kit fits the following BMWs:
10/2005+ E90 BMW 325xi 330xi - Sedan
10/2005+ E91 BMW 325xi - Wagon
10/2005+ E60 BMW 525xi 530xi

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BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc) for BMW 3 Series E91 (2006-2012)

Sub-Categories

Bav Auto Upper DISA Valve for Intake Manifold - E9x E82 E60 X3 X5 ...

N52 3-Stage Intake Manifold - BMW E82/88 E9X N52 3.0L

Universal 10AN ORB To 3/8" Barb

Upgraded Silicone CCV Hose - (11157522931) - N52

Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525x...

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