Multi-layer fiber composite with NBR rubber coating
Heat resistant (-40°C to +210°C continuous, 250°C peak)
Oil/Coolant resistant – withstands BMW-approved fluids
Feature | OEM Gasket | 1161-8637-800 |
DISA Valve Seal | Single lip | Dual-lip reinforced |
Service Life | 60k-80k miles | 100k+ miles |
Vacuum Leak Resistance | 0.95 bar | 0.98 bar |
Must Have:
Torx E12 socket (for one-time-use stretch bolts)
Torque wrench (capable of angular torque measurements)
BMW silicone remover (PN 83 19 0 413 051)
Critical Steps:
Clean surfaces with non-woven abrasive pad
Follow 3-stage torque sequence (8Nm + 90° + 90°)
Replace all intake manifold bolts (reusing old bolts causes leaks)
Check engine code (e.g., N52B30) on your valve cover
Match production date (2005-2013 for most N52 applications)
Consult our VIN verification tool at YourWebsite.com/verify
Common Signs:
Rough idle (especially when cold)
P0171/P0174 lean fuel trim codes
Whistling noise from intake area
Coolant or oil residue near manifold joints
Design Features
1.Integrated sealing lips for DISA valves
2.Molded-in alignment pins
3.Anti-stick surface treatment
Series | Model | Year Range | Engine Code | Engine Type |
3 Series | E90, E91, E92, E93 | 2005-2013 | N52B30 (3.0L) | Naturally Aspirated I6 |
5 Series | E60, E61 | 2003-2010 | N52B25 (2.5L) | Naturally Aspirated I6 |
1 Series | E82, E88 | 2008-2013 | N51B30 (3.0L SULEV) | Naturally Aspirated I6 |
X3 | E83 | 2006-2010 | N52B30 (3.0L) | Naturally Aspirated I6 |
Z4 | E85, E86 | 2006-2008 | N52B25 (2.5L) | Naturally Aspirated I6 |