Quality & Specifications: This is the Genuine Valve Seal Parts, OEM part number 11340029751, 11-34-0-029-751. Replacement number 11340054492, 11-34-0-054-492. It represents the latest generation of valve stem seals. It withstands extreme temperatures and offers extended service life. Designed for both intake and exhaust valves as the (umbrella) Sealing components. Sealing components for both intake & exhaust valves. 2 Sets Included (32 seals total)
Compatibility & Function: Fits N62 3.6L-4.8L, N63, S63 4.4L V-type 8-cylinder (V8) and N46, N42, N45, N40, N45N Inline 4-cylinder (L4) 1.6L-2.0L engine models. The Valve Seal ensures smooth engine performance, controls oil consumption, and prevents engine gas leaks. Issues like engine carbon buildup, loss of acceleration power, and reduced performance are often directly linked to this component
Failure Symptoms: When the valve oil Stem seal rubber ring becomes damaged/worn out, expect blue smoke emission from the exhaust – especially noticeable during startup, hard acceleration, or idling. Rapid engine oil level drop requiring frequent top-ups occurs as oil enters the combustion chamber. Spark plug carbon fouling leads to reduced ignition performance. Overall engine performance drops, with insufficient cylinder pressure resulting in power loss and sluggish acceleration
Selection & Installation: Choosing an {Original fitting} perfectly resolves issues and restores original engine condition. It provides long-lasting sealing for both intake and exhaust valves. The sealing lip features a self-tightening spring or wire, ensuring an effective seal around the engine valve guide stem. It remains effective for sealing oil under all conditions. Installation is complex, requiring partial engine disassembly, thus professional installation is highly recommended
1 series E81 E87/E87 LCI, 3 series E46 E90/E90 LCI E91/E91 LCI E92/E92LCI E93/E93 LCI, 5 series E60/E61 LCI F07 F10 G30/G90, 6 series E63/E63N F06 F12 F13, 7 series E65 E66 F01 F02 F03 F04 G11 G12, 8 series G15 F92, X1 E84, X3 E83/E83LCI, X5 E53 E70, X5 F15 F85, X6 E71 E72, X6 G06 F96, Z4 E85. You can check whether the vehicle is compatible by selecting the vehicle adapter
