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Product details
Designed for the N54 engine, Original BMW cylinder head cover 11-12-7-565-284 is the valve cover that seals the top of the cylinder head and carries the PCV oil separator. It fits 2007–2016 BMW 135i, 1 Series M, 335i, 335is, 535i, 740i, 740Li, X6 xDrive35i, and Z4 sDrive35i and sDrive35is models. A valve cover closes off the valvetrain, holding oil in and keeping dirt and debris out. On this design the oil separator is built into the cover and cannot be replaced separately, so a failed separator means a new cover. Each cover comes with these parts:
- One valve cover gasket (11-12-7-565-286)
- 26 ASA bolts (11-12-7-544-369)
- 2 more ASA bolts (11-12-7-556-977)
- 3 threaded bolts (11-12-7-548-063)
This Original BMW cover is backed by a 24-month parts warranty.
A cracked N54 cover has to be replaced. A used cover may cost less, but its condition is never certain, and that matters more when the separator inside cannot be serviced. Valve cover gaskets harden and crack with age, which can cause oil leaks or smells. High engine temperatures can warp or crack the cover itself, and a blocked PCV valve can build enough crankcase pressure to damage it. BMW's parts data shows this number in production from June 2006 on these chassis:
- E82 and E88 1 Series
- E90, E91, E92, and E93 3 Series
- Facelifted E60 and E61 5 Series
- F01 and F02 7 Series
- E71 X6
- E89 Z4
Technical Details
- Manufacturer: BMW (Original BMW Parts)
- Part number: 11-12-7-565-284
- BMW part name: cylinder head cover
- Engines: N54 and N54T
- PCV oil separator integrated, cannot be serviced separately
- Hardware included: valve cover gasket and 31 bolts
- Weight: 3.3 kg (7.3 lb)
- Production start: June 2006
- Made in Germany
- Sold as: one cover with gasket and bolts
- Warranty: 24 months
Installation & Tuning Notes
Uneven bolt torque and poor gasket placement are two known causes of valve cover leaks. The cover comes with its own gasket and a full set of new bolts, so the job can be done without reusing the old fasteners.
Common Questions
Can the oil separator be replaced on its own?
No. The PCV oil separator is part of the cover and cannot be replaced separately.
Does the 1 Series M use this same cover?
Yes. BMW uses this cover on both the standard N54 and the N54T version, which powers the 2011 1 Series M, the 335is, and the Z4 sDrive35is.
Will this cover fit a 2011 or later 335i?
No. This number covers the 335i through 2010, plus the 2011–2013 335is. Later 335i models are not covered, so check the fitment table before ordering.
For N54 owners dealing with a cracked cover or a failed separator, PMB carries the BMW part.
Fitment & Compatibility
Use the fitment table below to confirm year, model, submodel, and application notes before ordering. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2011 | BMW | 1 Series M | ||
| 2008–2010 | BMW | 135i | ||
| 2007–2010 | BMW | 335i | ||
| 2009–2010 | BMW | 335i xDrive | ||
| 2011–2013 | BMW | 335is | ||
| 2007–2008 | BMW | 335xi | ||
| 2008–2010 | BMW | 535i | ||
| 2009–2010 | BMW | 535i xDrive | ||
| 2008 | BMW | 535xi | ||
| 2011–2012 | BMW | 740i | ||
| 2011–2012 | BMW | 740Li | ||
| 2008–2010 | BMW | X6 | xDrive35i | |
| 2009–2016 | BMW | Z4 | sDrive35i | |
| 2011–2016 | BMW | Z4 | sDrive35is |