Overview

The BMW 11127595138 is a high-quality valve stem seal designed for BMW engines. It ensures proper lubrication of the valve stem while preventing excessive oil from entering the combustion chamber, maintaining engine efficiency and reducing emissions.

Key Features

✔ OEM Part Number: 11127595138
✔ Compatibility: Designed for select BMW models (check specific applications)
✔ Material: Durable rubber (often fluorocarbon or Viton®) with a metal casing for heat resistance
✔ Function: Seals the valve guide to control oil flow and prevent oil consumption
✔ Performance Benefits:

• Reduces oil leakage into combustion chambers

• Extends engine life by minimizing carbon buildup

• Maintains optimal lubrication for smooth valve operation

Common Symptoms of a Failing Valve Stem Seal

• Excessive blue/white smoke from the exhaust (oil burning)

• High oil consumption between changes

• Misfires or rough idling due to oil-fouled spark plugs

Applications

This part is commonly used in various BMW engines. Verify compatibility with your specific model and engine code before installation.

Installation Notes

• • Requires valve cover removal and possibly valve spring disassembly

  • Recommended to replace all valve stem seals at once for balanced performance

  • Professional installation advised for precise fitting

• Vehicle Compatibility Table

  Model Series	Production Years	Engine Codes	Notes
  1 Series (F20, F21)	2011-2019	N13, N20, B38, B48	Includes 116i, 118i, 120i, 125i
  2 Series (F22, F23, F45, F46)	2014-2021	N20, B48, B38	220i, 225i, 230i models
  3 Series (F30, F31, F34, F35)	2012-2019	N20, N26, B48, B58	320i, 328i, 330i, 340i variants
  4 Series (F32, F33, F36)	2013-2020	N20, N26, B48, B58	420i, 428i, 430i, 440i
  5 Series (F10, F11, F07)	2010-2017	N20, N26	520i, 528i, 530i (4-cylinder turbo)
  X1 (F48)	2015-2022	B38, B48	sDrive18i, xDrive20i models
  X2 (F39)	2017-present	B38, B48	All turbocharged 3-cyl and 4-cyl versions
  X3 (F25)	2010-2017	N20, N26	xDrive20i, xDrive28i
  X4 (F26)	2014-2018	N20, N26	xDrive20i, xDrive28i
  MINI Cooper (F56)	2014-present	B38, B48	Cooper S, JCW (2.0L turbo)