BMW Valve Cover Gasket Set - Reinz 11120034107

Product Information

If your BMW smells like burning oil, it is likely due to a leaking valve cover gasket. Over time, the rubber gasket hardens and loses its ability to seal the cylinder head properly, leading to oil seepage or leaks.

Engine Valve Cover Gasket Set
This gasket seals the valve cover to the top of the engine’s cylinder head, preventing oil and vapors from escaping. It must be slightly compressible to seal surface irregularities. Most modern gaskets are rubber-based, though some are reinforced with metal. Older vehicles may use cork gaskets, which require extra care during installation to avoid crushing.

Failure Symptoms:

• Age: Hardening and brittleness from aging causes leaks.
• Physical damage: Over-tightening can crush the gasket, compromising the seal.
• Chemical damage: Incompatible sealants may degrade the gasket.
• Obvious oil leaks: Oil running down from the cylinder head area.
• Mysterious oil leaks: Oil residue may appear in unexpected areas due to airflow and leak location.
• Air intake issues: Severe leaks can trigger engine faults or cause rough running due to unmetered airflow.
• Burning oil smell: Oil leaking onto the exhaust manifold may burn off while driving, creating a strong odor.