Genuine 948 107 236 03 Oil Separator Left Side for Porsche Cayenne

The Genuine 948 107 236 03 is an OEM oil separator designed specifically for 2009-2010 Porsche Cayenne models. This left side oil separator features a black finish and is manufactured by Genuine Porsche to meet exact factory specifications for proper fit and performance.

Function and Importance:

The oil separator is an integral part of the positive crankcase ventilation (PCV) system, collecting residual gases and vapors contained inside the crankcase, funneling them back to the intake manifold where it can be burned in the combustion chamber, reducing engine emissions. The air oil separator applies a small vacuum to the engine crankcase, and when it fails, intake vacuum in the engine crankcase rises to an unusually high value, often drawing engine oil into the intake system causing excessive exhaust tailpipe smoke.

Key Features:

• Genuine Porsche OEM part for guaranteed quality and fitment
• Left side / driver side position
• Black finish oil separator design
• Direct replacement for worn or failed original equipment
• Prevents oil contamination of intake system components
• Maintains proper crankcase ventilation and pressure control

The oil separator should be treated as a maintenance item and replaced using only Genuine Porsche parts, including all vent hoses and lines, every 6 years or 75,000 miles, whichever comes first. Replacing a failed oil separator helps prevent spark plug fouling, oxygen sensor contamination, and catalytic converter damage while maintaining optimal engine performance and emissions compliance.