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Oil Separator

VW Audi Oil Separator 079 103 464 F - Genuine OEM Replacement for 4.2L V8

GENUINE VW/AUDI
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SKU 079-103-464 F
$513.38 - $513.38
$513.38
$513.38 - $513.38
$513.38
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The Genuine VW/Audi Oil Separator (part 079 103 464 F) is an OEM component for 4.2L V8 engines. It effectively separates oil mist from crankcase gases, reducing oil consumption and keeping emissions systems clean. Precision-engineered for exact fit and long service life.

Key Features & Benefits

  • OEM Replacement: Authentic VW/Audi part ensures proper engine ventilation.
  • Reduces Oil Loss: Captures oil vapor and returns it to the sump.
  • Direct Fit: No adapters needed; installs in the same location as the factory separator.
  • Durable Construction: Built to withstand repeated heat cycles.

Vehicle Fitment

Make Model Years Engine
Audi A6 2004–2011 4.2L V8
Audi A8 2003–2010 4.2L V8
Audi S4 2004–2008 4.2L V8
Audi RS4 2006–2008 4.2L V8
Audi Q7 2006–2015 4.2L V8
Volkswagen Phaeton 2003–2006 4.2L V8
Volkswagen Touareg 2003–2010 4.2L V8

Technical Specifications

Part Number 079 103 464 F
Type Oil Separator

Installation Notes

Direct replacement, no modifications required.

About Genuine VW/Audi

Genuine VW/Audi is the official OEM parts supplier for Volkswagen and Audi vehicles, ensuring exact fit and original quality.

This part also goes by the following cross reference.

Cross Reference Part Number: 079103464F

Fits These Vehicles 7 applications
C6 A6
Make Model Engine Years
Audi A6 4.2L V8 2004–2011
D3 A8
Make Model Engine Years
Audi A8 4.2L V8 2003–2010
B7 S4
Make Model Engine Years
Audi S4 4.2L V8 2004–2008
B7 RS4
Make Model Engine Years
Audi RS4 4.2L V8 2006–2008
4L Q7
Make Model Engine Years
Audi Q7 4.2L V8 2006–2015
3D Phaeton
Make Model Engine Years
Volkswagen Phaeton 4.2L V8 2003–2006
7L Touareg
Make Model Engine Years
Volkswagen Touareg 4.2L V8 2003–2010
Fits 7 vehicle applications Check vehicle fitment before ordering View fitment

About this Crankcase Ventilation (PCV)

The GENUINE VW/AUDI 079-103-464 F is part of the crankcase ventilation (PCV) system, which routes gases that escape past the pistons back into the intake to be burned, and separates oil out of them. When the system fails, crankcase pressure and oil consumption can rise quickly.

Frequently asked questions

What does the crankcase ventilation system do?

It relieves pressure inside the engine by drawing blow-by gases back into the intake, while an oil separator or valve keeps oil out of the intake. Correct crankcase pressure protects seals and gaskets.

What are the signs of a failed PCV valve or oil separator?

A whistling or howling noise at idle, rough idle, lean-running fault codes, higher oil consumption, oil leaks from seals, blue smoke, or suction at the oil filler cap strong enough to hold the cap down.

What should I replace along with it?

Crankcase vent hoses become brittle with heat and age, so inspect and replace cracked hoses and fittings at the same time. On many European engines, the valve cover and separator are serviced together.

Can I replace PCV components myself?

Many parts are accessible with basic tools, though some separators sit under the intake manifold. Handle old plastic fittings carefully, as they can break during removal.

How do I make sure this crankcase ventilation part fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.