Audi A8 Vent Oil Separator Replacement at your home or office.

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Vent Oil Separator Replacement Service

How much does a Vent Oil Separator Replacement cost?

On average, the cost for a Audi A8 Vent Oil Separator Replacement is $285 with $76 for parts and $209 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 Audi A8V8-3.7LService typeVent Oil Separator ReplacementEstimate$404.30Shop/Dealer Price$480.63 - $623.00
1999 Audi A8V8-3.7LService typeVent Oil Separator ReplacementEstimate$360.30Shop/Dealer Price$436.70 - $579.12
1997 Audi A8V8-3.7LService typeVent Oil Separator ReplacementEstimate$360.30Shop/Dealer Price$436.70 - $579.11
Show example Audi A8 Vent Oil Separator Replacement prices

What is the Vent Oil Seperator all about?

An internal combustion engine runs on a series of controlled explosions. During this process, gases are created. While most of those gases will eventually make their way from the combustion chamber through the exhaust manifold and out the muffler, some pass the pistons into the crankcase. The latter is called “blow-by”, and it can be very damaging to an engine. It creates additional pressure within the crankcase that damages seals and gaskets. To combat this deleterious effect, a ventilation system is used.

These systems require several different components in order to operate, including the positive crankcase ventilation (PCV) valve and the vent oil separator hose. The vent oil separator hose is responsible for capturing and collecting oil droplets that invariably accompany those spent gases and ensuring they are not released into the combustion chamber. The gases are then re-burned for emissions control. If your vent oil separator is plugged, excess pressure can build up inside the crankcase and blow out a seal, causing an oil leak. Excess oil in the vent oil separator can also enter the combustion chamber, causing a misfire and rough run with blue, oily exhaust.

Keep in mind:

  • The vent oil separator hose is susceptible to clogging, particularly during cold weather.
  • The vent oil separator hose is part of the crankcase ventilation system. If you’re experiencing related problems, have the entire system diagnosed.

How it's done:

  • The faulty vent oil separator is located and identified
  • The intake is removed and the vent oil separator is removed
  • The new vent oil separator is installed and the intake is installed
  • The engine is started and idled, then the new vent oil separator is checked for leaks
  • The vehicle is road tested and checked for proper operation

Our recommendation:

The vent oil separator doesn’t have a set maintenance schedule. If you are having symptoms related to the vent oil separator, have one of our expert mechanics diagnose the crankcase ventilation system on your vehicle and repair it as necessary.

What common symptoms indicate you may need to replace the Vent Oil Seperator?

  • Oil is present in the PCV valve
  • Blue smoke from the exhaust
  • Engine runs rough with a check engine light on

How important is this service?

The crankcase ventilation system is a vital part of your emissions control system and can adversely affect engine operation if it is not maintained properly.

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Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Audi Q7 V8-4.2L - Vent Oil Seperator - Chicago, Illinois
Rigoberto is a very knowledgeable mechanic. He fixed my Audi Q7 and I ended saving money compared to taking it to the dealer. He was on time and very friendly, I would book him again and recommend him to friends and family.

Barinder

22 years of experience
40 reviews
Barinder
22 years of experience
Audi A6 Quattro V6-2.7L Turbo - Battery - Mountain View, California

AL

12 years of experience
238 reviews
AL
12 years of experience
Audi A4 Quattro L4-1.8L Turbo - Axle / CV Shaft Assembly Replacement (Driver Side Rear) - Aurora, Colorado
Great guy. Did a great job. Thanks Al.

Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Audi Q5 V6-3.2L - Brake Pads Replacement (Front, Rear) - Prospect Heights, Illinois
Knowledgeable, easy to work with.

Excellent Rating

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Rating Summary
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2,288
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