Engine Valve Cover Gasket Set for the 2015-2018 BMW M3 (F80)
Leaking oil or smelling burning from your S55 engine? Your valve cover gasket is the likely culprit.
- This guide is for the 2015-2018 F80 M3 with the S55 engine, not the 2013 E92 M3 with the V8.
- A burning oil smell is the most common sign of a leaking gasket.
- A loud whistle at idle points to a failed PCV valve, which requires replacing the entire valve cover, not just the gasket.
- Consider replacing spark plugs and ignition coils at the same time to save on future labor costs.
Understanding the 2013-2018 M3 Generation Split
It is critical to know that the "2013-2018 BMW M3" spans two different vehicle generations with completely different engines. The 2013 M3 (E90/E92/E93 chassis) has a V8 engine (S65), while the 2015-2018 M3 (F80 chassis) has a twin-turbo inline-6 engine (S55). This guide specifically covers the 2015-2018 F80 M3 with the S55 engine. The valve cover gaskets are not interchangeable between these generations.
Symptoms of a Failing Valve Cover Gasket
A failing valve cover gasket on the S55 engine is a common issue. The signs are usually easy to spot. The most obvious symptom is a burning oil smell, especially after the engine is warm or after a spirited drive. This happens when oil leaks from the gasket and drips onto the hot exhaust manifold on the passenger side of the engine. You might also see smoke coming from the engine bay when you're stopped at a light. Other signs include visible oil residue on the side of the engine and a consistently low engine oil level. In some cases, a bad gasket can cause oil to leak into the spark plug wells, leading to engine misfires and a Check Engine Light.
A Note on the Integrated PCV Valve
The S55 engine's plastic valve cover has the Positive Crankcase Ventilation (PCV) system built directly into it. A common failure is the rubber diaphragm inside this PCV valve, which can tear. This often causes a loud, high-pitched squealing or whistling noise at idle. If you hear this noise, and it stops when you loosen the oil filler cap 🎬 Watch this video to diagnose a squealing PCV valve failure., the PCV valve has failed. Because the PCV valve is part of the valve cover, the entire valve cover assembly must be replaced, not just the gasket. Many mechanics recommend replacing the entire valve cover even if you only have a gasket leak, as the plastic cover itself can warp over time, preventing a new gasket from sealing properly.
Choosing the Right Aftermarket Gasket Set
When shopping for a replacement, you'll find several aftermarket options alongside the Original Equipment (OE) part. The quality can vary, so it's important to understand the differences.
| Brand Tier | Brands | General Assessment |
|---|---|---|
| OEM-Equivalent | Victor Gaskets (Victor Reinz), Elwis (Elring) | Victor Reinz and Elring are often original equipment suppliers to BMW. Their gaskets are designed to meet the same standards as the factory part for fit and material quality. Many professional technicians and DIYers trust these brands for a reliable seal without the higher cost of dealer parts. |
| Value-Oriented | URO Parts | URO Parts offers a more budget-friendly option. However, forum discussions among BMW owners often report mixed results, with some experiencing fitment issues or premature failure. While some have used them without problems, they are generally considered a lower-tier option compared to OEM or Victor Reinz. |
Pro Tip: While you are replacing the valve cover gasket, you have easy access to other components. This is an excellent time to also replace your spark plugs and ignition coils. It's also recommended to replace the Valvetronic actuator gasket at the same time to ensure a complete, leak-free job.
🎬 Watch a mechanic perform this S55 valve cover replacement tutorial.Frequently Asked Questions (FAQ)
Can I just replace the gasket or do I need a whole new valve cover?
While you can replace just the gasket, it is often recommended to replace the entire valve cover assembly on the S55 engine. The original plastic cover can warp from heat, which means a new gasket might not seal correctly. Additionally, the PCV valve is built into the cover and is a common failure point that causes whistling noises and oil consumption. Replacing the whole cover addresses all potential issues at once.
Is this a difficult DIY job?
For an experienced DIY mechanic, this job is manageable but time-consuming. It does not require many specialized tools, but you will need to remove several components to access the valve cover, including the engine braces, charge pipes, and fuel rail. The bolts at the back of the valve cover can be tricky to reach. 🎬 See this comprehensive DIY walkthrough for replacing the valve cover. If you are not comfortable with a multi-hour job that involves the fuel system, it is best to leave it to a professional.
Are there any recalls for this issue?
There are no specific recalls from the NHTSA for the valve cover gasket or the integrated PCV system on the 2015-2018 BMW M3. Recalls for this model have been issued for other components like the driveshaft and airbags.
What is the difference between an Elwis and Victor Gaskets gasket?
Both Elwis (often sold as Elring) and Victor Gaskets (Victor Reinz) are reputable German brands that are known to be Original Equipment Manufacturers (OEM) for BMW. This means they produce parts for BMW's factory assembly line. For a part like a valve cover gasket, both brands are considered high-quality choices that should provide a reliable, long-lasting seal. There is no significant performance difference between them for this application.
Helpful Videos
Technical Specifications
OEM Part Numbers: 11127846359 (Valve Cover Assembly) 11127587804 (Gasket Set)
Fits the S55 3.0L twin-turbocharged inline-six engine. The gasket set includes the main perimeter gasket and inner spark plug tube seals.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- BMW M3: