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Oil Separation & Breather System for BMW 7 Series G11 (2016+)

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Every car has a crankcase vent system that is supposed to suppress oil from making it into the intake ports and combustion chamber. A good functioning system will separate oil from the atmosphere and return it to the oil pan (or collect it in a catch can) while allowing the leftover vapors to burn in the combustion chamber or recirculate through the system. This has always been known as a PCV system (Positive Crankcase Ventilation) but BMW has several other names for it - oil separator, crankcase vent (CCV), and cyclonic separator. Failures in the system will allow raw oil to enter the intake and eventually into the engine itself which can have disastrous effects on engine performance and longevity. As emissions regulations on oil and gas venting have gotten more stringent the PCV systems have gotten more complex and failure prone. And because the CCV is intertwined with other systems you could experience rough running, loss of power, higher oil consumption, misfiring, stalling, or other annoying issues. There is no replacement interval for these so we recommend inspecting your crankcase vent system as part of your regular maintenance routines. Symptoms of a bad crankcase vent are: whitish or yellowish film on the underside of the oil cap, whistling/squealing noises (not caused by a belt), suction on the oil cap that makes it hard to unscrew, large amounts of white smoke from the exhaust, and excessive oil consumption.

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CCV/PCV Breather Hoses (2)

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B58 PCV Repair Kit

For models with the earlier Gen 1 B58 only - Not for use with the B58TU Engine

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T#:23980285

Part#: 1112764517PCV

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$ 59.99 USD

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$ 59.99 USD

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Though BMW's B58 engine has proven to be mostly reliable, it does have one well-known problem, failure of the PCV Valve. This issue is especially common on cars with upgraded turbos. Signs that your BMW has experienced this failure include misfires, a rough idle, oil in the the intake/chargepipe, or white smoke coming from the exhaust. The good news is that this is easily fixed and is very affordable! This kit contains all of the items necessary to repair your PCV valve and restore the smooth operation of your B58 engine.

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VTT Gen-1 PCV CAP - B58

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T#:4813265

Part#: VTT-B58-PCV-CAP

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$ 149.99 USD

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Vargas has developed a solution to problematic PCV systems! Stock diaphragms on the gen-1 B58 Valve cover are fragile and can crack or tear over time. This can cause loss of crankcase vacuum and smoking. The VTT PCV cap replaces the factory plastic cap with a billet aluminum piece which uses a Billet Banjo fitting, and VTT's Vaccum/Boost adapter to move vacuum directly from the head ports to the manifold. This cap will also allow you to run a catch can on the low side if desired. VTT Recommends using this cap alongside their High Side Catch Can and crankcase breather for maximum efficiency. Installation is as simple as popping the stock cap off, removing the diaphragm, and placing the VTT components in place. Kit Includes: One Billet PCV Cap One Billet Banjo Fitting One Vaccum/Boost adapter One line with built-in check valve

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Genuine BMW Crank Case Ventilation Valve - N63 4.4L

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T#:216971

Part#: 11158647299

In Stock

10% off MSRP $ 208.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 191.99 USD

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10% off MSRP

$ 208.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 191.99 USD

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Genuine Bmw Connecting Line - 11158647299

Genuine BMW Crankcase Ventilation Intake - 11158601619

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T#:219746

Part#: 11158601619

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4% off MSRP $ 394.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 377.99 USD

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4% off MSRP

$ 394.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 377.99 USD

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BMW part number 11158601619 is a genuine OEM crankcase ventilation intake pipe designed for specific BMW models. This component is integral to the engine's positive crankcase ventilation (PCV) system, directing blow-by gases from the crankcase back into the intake manifold for combustion. This process reduces emissions and helps maintain engine efficiency. Compatible BMW Models: BMW 750i (G12): 2016–2019 BMW 750i xDrive (G12): 2016–2019 BMW M550i xDrive (G30): 2018–2019

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ECS Tuning Baffled Oil Catch Can - 8oz

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T#:13496655

Part#: 003779ECS05-02

In Stock

Sale - Save 10% $ 238.99

This product was last offered at the strikethrough price on
06-14-2026

$ 215.09 USD

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Sale - Save 10%

$ 238.99

This product was last offered at the strikethrough price on
06-14-2026

$ 215.09 USD

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Upgrade Your BMW with ECS Baffled Oil Catch Can

Modern emission regulations require a closed PCV/Breather system for cleaner operation. However, inefficient oil particle capture can lead to excessive oil vapor ingestion, causing carbon buildup, reduced performance, and fuel economy. ECS Tuning's updated ECS Baffled Oil Catch Can, now with an easy-to-empty 1/4" drain fitting, is engineered to collect toxic blow-by gases, minimize carbon deposits, and reduce oil contamination within engine oil. Recirculating oil vapor ensures emissions compliance without venting to the atmosphere.

Key Features:
Highly Efficient Oil Separator: Strategically positioned 4 chamber baffle system maximizes oil/air separation and minimizes oil droplets in the intake tract.
Integrated Dipstick: Knurled and black anodized oil dipstick simplifies oil volume inspection.
Reservoir: Available in 6oz or 8oz capacity with a 1/4" NPT drain plug fitting.
Serviceable: Easily removable baffle plates and drain plug for cleaning.
Easy/Customizable Installation: Combine with the ECS Universal Bracket Kit for simplified installation and adjustable mounting locations.
Leak-Free Fittings: Machined -10AN ORB (O-Ring Boss) fittings available for secure connections (fittings sold separately).

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SET, CRANKCASE VENTI

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T#:529958

Part#: 11158635529

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6% off MSRP $ 518.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 488.99 USD

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6% off MSRP

$ 518.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 488.99 USD

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Rein Crank Case Ventilation Valve - Priced Each

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:17738377

Part#: 11158647299

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$ 79.99

This product was last offered at the strikethrough price on
03-26-2026

$ 73.99 USD

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$ 73.99 USD

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Rein's OE quality breather hose helps prevent pressure build-up in the engine.

Pressure Control Valve (PCV) Repair Kit

For models with the earlier Gen 1 B58 only - Not for use with the B58TU Engine

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:24079614

Part#: 11121025447

In Stock

Sale - Save 5% $ 288.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 274.10 USD

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Sale - Save 5%

$ 288.99

This product was last offered at the strikethrough price on
06-25-2026

$ 274.10 USD

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BMW's B58 engine has been great, but one major weakness is the PCV valve. As stated by BMW, "The PCV's rubber diaphragm seal may fail, causing insufficient engine oil separation. As a result, the engine may emit blue/white smoke from the exhaust tailpipes, shudder during operation, and/or run with reduced power (limp mode). At idle, a high-frequency whistling noise may be heard in the engine compartment, and the malfunction indicator lamp (MIL) may also illuminate." If your BMW is experiencing these issues, there is a very likely chance your PCV has failed. If so we recommend replacing your PCV with this Genuine BMW repair kit! Don't want to spend over $200 for this fix? We also offer T#23980285 which also replaces this valve but at roughly 1/10th the price!

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Ultimate BMW B58 PCV & Ignition Refresh Kit

For models with the earlier Gen 1 B58 only - Not for use with the B58TU Engine

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T#:55713529

Part#: 11157637521KT

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$ 565.99 USD

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$ 565.99 USD

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When the integrated PCV diaphragm on your B58 engine tears, it does more than just create a loud whistling noise under the hood. The ruptured valve allows the engine to pull raw crankcase oil vapor directly into the intake manifold and combustion chambers. By the time you diagnose the PCV failure, your engine has likely been burning oil for hundreds of miles. This thick oil vapor heavily coats the spark plugs in carbon, leading to rough idles, hesitation, and misfires—even after the PCV vacuum leak is fixed. Furthermore, the extreme heat trapped near the firewall on the B58 architecture naturally degrades the ignition coils over time. This ultimate refresh kit is the definitive "while you're in there" solution. It utilizes the highly sought-after Genuine BMW PCV fix kit (allowing you to repair the valve without replacing the entire expensive valve cover) and pairs it with a fresh set of OEM spark plugs and ignition coils. We also include a brand-new Genuine BMW corrugated CCV breather hose, as the factory plastic line is notoriously brittle and almost always snaps when you attempt to move it out of the way during the PCV repair. Kit Includes: (1) PCV Valve Repair Kit (Replaces OE # 11121025447) (1) CCV / Crankcase Vent Hose (Replaces OE # 11157637521) (6) NGK Spark Plugs (Replaces OE # 12120040551) (6) Turner Ignition Coils (Replaces OE # 12138643360)

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URO Crankcase Vent Valve Repair Kit - B58

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T#:55713528

Part#: 11121025447

Ships in 1 Business Day

$ 222.99 USD

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$ 222.99 USD

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The URO Parts Crankcase Vent Valve Repair Kit is the smart technician's fix for the notorious BMW crankcase ventilation failures.

BMW B58 PCV Repair & Premium Oil Service Kit

For models with the earlier Gen 1 B58 only - Not for use with the B58TU Engine

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:55749586

Part#: 83212365954KT13

In Stock at Vendor

Sale - Save 1% $ 211.99

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

$ 210.56 USD

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Sale - Save 1%

$ 211.99

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

$ 210.56 USD

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Fix the whistle, replace the brittle vent hose, and flush out the contaminated oil. This kit pairs the highly sought after PCV fix with a premium Liqui Moly Top Tec 6600 0W-20 oil service to give your engine a completely clean slate. When the integrated PCV diaphragm on your B58 tears, it causes a massive unmetered vacuum leak that pulls raw oil vapor directly into the combustion chambers. This doesn't just create a loud, embarrassing whistling noise at idle—it causes poor air/fuel mixtures that force raw, unburned fuel past the piston rings. This blow-by heavily dilutes your engine oil, destroying its ability to properly lubricate the bearings and timing chain. Fixing the PCV using this Bremmen repair kit (which saves you from buying an entirely new valve cover) is only half the battle. You absolutely must get that compromised oil out of the crankcase. This comprehensive service kit includes the Bremmen PCV repair cap, the fragile corrugated crankcase breather hose that almost always snaps during the repair process, and a complete premium oil change. We've included Liqui Moly Top Tec 6600 0W-20, which carries the strict BMW LL-17 FE+ approval. This ultra-modern, low-friction oil ensures instant lubrication to the turbocharger upon cold start while maximizing fuel efficiency. Paired with a fresh OEM Mann oil filter, this kit completely reverses the collateral damage of a PCV failure. Kit Includes: (1) PCV Valve Repair Kit (Replaces OE # 11121025447) (1) CCV / Crankcase Vent Hose (Replaces OE # 11157637521) (1) Liqui Moly Top Tec 6600 0W-20 Engine Oil - 7 Liters (BMW LL-17 FE+ Approved) (1) Hengst Oil Filter Kit with O-Rings (Replaces OE # 11428583898) (1) Oil Drain Plug with Crush Washer

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Crank Case Ventilation Valve - Priced Each

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T#:53326230

Part#: 11158647299

Ships on Sep 8, 2026

Sale - Save 20% $ 80.99

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

$ 64.79 USD

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Qty

Sale - Save 20%

$ 80.99

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

$ 64.79 USD

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Oil Separation & Breather System
- CCV/PCV Breather Hoses (2)

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