BMW Z3 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 BMW Z3 Vent Oil Separator Replacement is $312 with $103 for parts and $209 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 BMW Z3L6-2.5LService typeVent Oil Separator ReplacementEstimate$467.44Shop/Dealer Price$559.56 - $749.28
2001 BMW Z3L6-3.2LService typeVent Oil Separator ReplacementEstimate$414.42Shop/Dealer Price$504.35 - $687.36
1999 BMW Z3L6-2.5LService typeVent Oil Separator ReplacementEstimate$423.44Shop/Dealer Price$515.62 - $705.39
1999 BMW Z3L6-3.2LService typeVent Oil Separator ReplacementEstimate$424.18Shop/Dealer Price$516.46 - $706.72
1997 BMW Z3L6-2.8LService typeVent Oil Separator ReplacementEstimate$424.18Shop/Dealer Price$516.61 - $706.98
1999 BMW Z3L6-2.8LService typeVent Oil Separator ReplacementEstimate$440.40Shop/Dealer Price$536.82 - $739.31
2000 BMW Z3L6-2.8LService typeVent Oil Separator ReplacementEstimate$451.40Shop/Dealer Price$547.30 - $749.40
1998 BMW Z3L6-2.8LService typeVent Oil Separator ReplacementEstimate$435.18Shop/Dealer Price$528.46 - $719.47
Show example BMW Z3 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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Ben

41 years of experience
1458 reviews
Ben
41 years of experience
BMW Z3 L6-2.8L - Inspection / Diagnostics - Katy, Texas
Ben was perfect! Smart, fun and a great help.

Jose

10 years of experience
58 reviews
Jose
10 years of experience
BMW Z3 L6-2.8L - Brake Rotor/Disc Replacement (Front, Rear) - Clovis, California
A goldmine of knowledge! Saved me SO much money! Also prevented a possible blowout due to a very damaged tire that was virtually shredded on the interior side! Thank you, Jose!

Adam

29 years of experience
95 reviews
Adam
29 years of experience
BMW Z3 L6-2.5L - Serpentine/Drive Belt - San Antonio, Texas
Adam arrived ahead of schedule and completed the work promptly. He also took the time to talk to me, show me what was wrong and how he fixed it, as well as explain all of the functionality to me.

Kevin

6 years of experience
108 reviews
Kevin
6 years of experience
BMW Z3 L4-1.9L - Spark Plugs - Clermont, Florida
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Excellent Rating

(67)

Rating Summary
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66
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Number of BMW Z3 services completed
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services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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