Mercedes-Benz C300 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 Mercedes-Benz C300 Vent Oil Separator Replacement is $181 with $86 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2010 Mercedes-Benz C300V6-3.0LService typeVent Oil Separator ReplacementEstimate$286.21Shop/Dealer Price$346.52 - $488.06
2008 Mercedes-Benz C300V6-3.0LService typeVent Oil Separator ReplacementEstimate$266.21Shop/Dealer Price$326.55 - $468.11
2009 Mercedes-Benz C300V6-3.0LService typeVent Oil Separator ReplacementEstimate$266.21Shop/Dealer Price$326.55 - $468.11
2012 Mercedes-Benz C300V6-3.0LService typeVent Oil Separator ReplacementEstimate$266.21Shop/Dealer Price$326.51 - $468.04
2011 Mercedes-Benz C300V6-3.0LService typeVent Oil Separator ReplacementEstimate$266.21Shop/Dealer Price$326.57 - $468.16
Show example Mercedes-Benz C300 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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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(422)

Rating Summary
395
15
5
1
6
395
15
5
1
6

Mike

25 years of experience
79 reviews
Mike
25 years of experience
C300 2017 - Check Engine Light is on - Livonia, MI
Mike diagnosed the problem quickly and was completely honest. I fully recommend him and Your Mechanic.

Christopher

20 years of experience
2 reviews
Christopher
20 years of experience
C300 2014 - Fuel Filter - Stamford, CT
Very professional and courteous

PETE

20 years of experience
26 reviews
PETE
20 years of experience
C300 2013 - Oil Change - New Castle, DE
Great job! Once again.

William

17 years of experience
48 reviews
William
17 years of experience
C300 2008 - Car is not starting - Tempe, AZ
Great experience. William was awesome, and fxed the car on the spot (needed a jump start).

Excellent Rating

(422)

Rating Summary
395
15
5
1
6
395
15
5
1
6
Number of Mercedes-Benz C300 services completed
4642+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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