Valve Cover Assembly

The factory magnesium valve covers on the S65 engine are known for developing micro-porosity, corrosion, and persistent oil leaks over time. This material is highly susceptible to oxidation, leading to unsightly surface imperfections, weakened gasket channels, and sealing issues that a simple gasket replacement won't fix.

Upgrade to this high-strength aluminum valve cover, engineered as a direct-fit replacement for your aging OEM covers. Unlike magnesium, aircraft-grade aluminum offers superior durability, enhanced heat resistance, and complete immunity to the corrosion issues that plague factory covers. Whether you're refreshing a high-mileage M3 or seeking long-term reliability, this upgrade ensures a leak-free, worry-free solution for your S65.

This valve cover includes gaskets, bolts, and the oil separator for a comprehensive replacement.

Features:

Eliminates the common porosity and corrosion issues found in factory magnesium covers.

Helps maintain optimal engine temperatures and enhances long-term reliability.

Gloss red finish provides a much-needed boost in engine bay aesthetic.

Designed for an OEM-like installation without modifications.

Reduces the risk of oil leaks, ensuring a proper seal.

Resistant to oxidation and chemical exposure for a long-lasting clean look.

BMW Valve Cover - N55 3.0L is a high-quality direct replacement designed to restore the reliability and performance of BMW’s turbocharged N55 engine. Manufactured by URO Parts, this valve cover meets strict ISO 9000 certification standards, ensuring durability and precise fitment. Engineered to prevent common issues such as oil leaks and vacuum loss, it is an essential component for maintaining engine efficiency.

• Direct replacement for OEM valve covers, ensuring a seamless installation
• ISO 9000 certified manufacturing for long-lasting reliability and quality
• Prevents oil leaks and vacuum loss, improving engine efficiency
• Durable construction designed to withstand high temperatures and engine vibrations
• Compatible with BMW N55 3.0L engines, offering an exact fit for select models

Ensure peak engine performance and reliability by replacing a worn or cracked valve cover with this premium-quality URO Parts component.

Introducing the Bremmen Auto Metal Valve Cover (Part Number 11127548274) for N52 3.0L engines – a smart and cost-effective alternative to the Genuine BMW valve cover. Specifically designed for the N52 3.0L engine, this metal valve cover from Bremmen Auto surpasses stringent OEM standards, ensuring outstanding performance and durability for your BMW.

Key Features and Benefits:

Direct Replacement: Tailored for N52 3.0L engines, providing a seamless and hassle-free replacement.

Precision-Engineered: Designed for optimal performance, enhancing your BMW's engine efficiency.

Durable, High-Quality Materials: Crafted with premium materials, the metal valve cover ensures longevity and resilience in various driving conditions.

Rigorous Testing: Undergoes comprehensive testing to meet and exceed OEM specifications, guaranteeing reliability and longevity.

Thermal Conductivity: The metal construction enhances thermal conductivity, helping to dissipate heat more effectively, thus contributing to improved engine performance.

Corrosion Resistance: Resistant to corrosion, ensuring a longer lifespan compared to traditional materials, and maintaining the cover's aesthetic appeal.

Significant Cost Savings: Enjoy substantial cost savings without compromising on quality, making it a financially savvy choice for BMW enthusiasts.

Upgrade your BMW confidently with the Bremmen Auto Metal Valve Cover. Not only does it provide comparable quality to Genuine BMW parts, but it also presents substantial benefits such as improved heat dissipation and corrosion resistance, making it a wise and performance-enhancing choice for discerning BMW enthusiasts.

• All-in-one valve cover overhaul
• Preventative replacement saves time and trouble later on
• Includes new oil separator system
• Replace valve cover gaskets before a leak becomes worse
• Replace valve cover before it cracks

For the 2007 model year BMW switched to a plastic valve cover on the N51 and N52 engines. As we have seen over time the plastic can crack which leads to oil leaks, vacuum leaks, poor running, and other issues. Unfortunately, it's not just the gasket that needs periodic replacement but the entire valve cover itself. This kit includes a new valve cover, gaskets, eccentric shaft seal, and hardware. The valve cover also incorporates the oil separator which is not a replaceable item on its own. So a complete valve cover replacement will tackle multiple problem areas at once. The valve cover is the same for N51 SULEV and N52 engines.

Cracked Valve Cover. The plastic used for the N52 valve cover is thin and weak in certain spots. This makes it prone to hairline or larger cracks that will leak oil and cause vacuum leaks. You might also notice rough running, especially at idle. Often a technician will go looking for a failed ignition coil, spark plug, or failed vacuum hose on the engine. And without a fault code to assist in diagnosis this can often mean wasted time and money. A cracked valve cover is a new problem area that many techs don't think to check.

Oil Separator/Crankcase Vent. BMW integrated the oil separator system into the valve cover on these later engines. An internal manifold creates a cyclone effect and centrifugal force separates vapor from the liquid oil. The liquid oil is supposed to drain through the valve cover and back to the oil pan while the remaining vapor is burned up during combustion. It's a very efficient and environmentally-friendly design with very few moving parts. Unfortunately it's not perfect and eventually the internal passageways will become clogged. This problem is made worse in cars that have short drive cycles, sit for long periods of time, do not have frequent oil changes, do not see regular runs to redline, and cars in freezing climates. If the engine never reaches optimal operating temp the oil remains in liquid form or becomes sludge. This is bad news for the entire engine, leading to fouled spark plugs, rough running and misfires and even premature failure of catalytic converters and oxygen sensors. Since the oil separator system in the valve cover is not available on its own, and cleaning it is nearly impossible, the complete replacement of the valve cover is the only option. Other oil vent tubes and vacuum hoses are also recommended to get replaced at the same time.

Valve Cover Gaskets. As with any rubber part, failures occur when the rubber becomes dry and brittle. The pliable rubber no longer forms a seal between the cylinder head and valve cover where it will develop an oil leak. Valve cover gaskets that leak can allow oil to seep into the spark plug holes and contaminate ignition coil boots and plugs. That can lead to rough running and misfires. A new valve cover includes new gaskets.

Eccentric Shaft Seal. The seal for the eccentric shaft sensor is a known spot for oil leaks. When the seal to the valve cover fails oil can end up in the sensor itself and ruin the sensor (an unecessary $300 expense). Usually a new seal (o-ring) will stop the leaks but sometimes the valve cover is at fault too. A new eccentric shaft seal is included.

All new hardware is included to avoid re-using and over-tightening the original bolts (they have a very low torque rating).

Replacement requires accessing the rear of the engine with a lot of the upper plastic shrouding removed. The vent hose on the valve cover should be replaced as it is almost always broken anyway (#11157559528). The metal fuel line must also be removed and disconnected from the fuel injectors. Professional installation is encouraged if you have never done this kind of work before. Serious DIY types should have a Bentley Service Manual to use which greatly explains the process. You may also want to combine this work with the oil filter housing gasket replacement.

There is no maintenance or replacement interval for the N52 valve cover. However, we have seen cracks and other failures in the 50,000-90,000 mile range. Our best advice is to plan on a major top end overhaul around the 70-80,000 mile mark. There's no mechanical downside to replacing it as prevention and it will make the engine run better and last longer.

This item fits the following BMWs:
2008-2012 E82 BMW 128i
2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible
2008-2010 E60 BMW 528i 528xi 528i xDrive
2011 F10 BMW 528i
2007-2010 E83 BMW X3 3.0i X3 3.0si
2007-2008 E70 BMW X5 3.0si
2007-2008 E85 BMW Z4 3.0i Z4 3.0si
2009-2010 Z4 BMW Z4 sDrive30i

Plastic valve covers, while inexpensive to produce, are prone to warping over time. This can lead to an improper seal with the cylinder head, even when using a new gasket. Fortunately, BMW offers a comprehensive valve cover kit that includes all necessary seals and mounting hardware for a reliable installation.

Key Features:

Durability: Genuine BMW components ensure long-lasting performance. Comprehensive Kit: Includes all seals and mounting hardware for a complete installation. Improved Seal: Designed to provide a secure seal to the cylinder head, preventing leaks. Genuine Quality: Manufactured to meet BMW's high standards for quality and reliability. This Genuine BMW kit includes:

Valve Cover (Part Number: 11128691779) Gasket Set (Part Number: 11129894803) HPFP Profile Gasket (Part Number: 11128638246) Collar Screws (21 pieces) (Part Number: 11129454322) Ball Pin for Engine Cover (Part Number: 11127593207) Fixing Clamp (Part Number: 11128642177) Upgrade to Genuine BMW parts for optimal performance and peace of mind.

Cracked valve covers can create troublesome vacuum leaks and allow leaking oil to damage engine components. If your valve cover is damaged or leaking, replace it to fix engine fault codes and restore peak operation.

URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.