The valve cover is responsible for sealing the internal workings of the engines' top end. Most vehicles require a replacement gasket at some point or another and newer models have plastic valve covers that get brittle and crack with age.
Plastic valve covers are known to warp and crack over time. After numerous heat cycles, plastic becomes brittle and more susceptible to failure. If your B46 / B48 engine has higher mileage and you've noticed vacuum leaks, oil leaks, or PCV failure, this replacement from Elring is a great choice to address the issues and keep your engine leak free!
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Cracked and warped 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. Replacement also restores a smooth idle when the PCV valve has failed. Replaces BMW p/n 11127645173
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Keeping the oil inside your engine is extremely important to performance. Between oil change intervals, your oil can dip to dangerous levels if there is a leak you may not be aware of. The valve cover is an extremely common place for this to happen. Years of exposure to extreme temperature change degrades the gaskets and causes failure. Replace your valve cover gasket to keep your engine oil in your BMW. Replaces BMW p/n 11129894803 & 11129452183
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