Best Garage in Humble For Fixing Your Porsche’s Air-Oil Separator Failure
The Porsche Air-Oil Separator (AOS) is a vital component in the engine's ventilation system, responsible for removing oil mist from the crankcase gasses before they are released into the atmosphere. However, like any mechanical part, it can fail over time, leading to a variety of problems that can significantly impact the performance and longevity of your Porsche engine.
Understanding the Porsche Air-Oil Separator
The air-oil separator is designed to capture and remove oil vapors and liquid droplets from the crankcase gasses before they enter the engine's intake system. It consists of a small housing with two ports, one of which is connected to the engine crankcase, while the other is connected to the intake manifold.
Inside the housing, a series of baffles and membranes are used to separate the oil mist from the gas stream, allowing the oil to drain back into the engine oil pan while the clean gasses are recirculated back into the intake system. The separator is located on the left side of the engine, near the oil filter housing.
Symptoms of Air-Oil Separator Failure
1. Excessive Oil Consumption
The most common symptom of an air-oil separator failure is excessive oil consumption. When the separator fails, it allows oil to enter the intake system, where it is burned in the combustion chamber. This can lead to increased smoke from the tailpipe, as well as fouled spark plugs and decreased engine performance.
2. A Milky Substance
Another symptom of an air-oil separator failure is the presence of a milky substance in the engine oil or coolant. When the separator fails, it can allow coolant to mix with the engine oil, creating a milky emulsion that can damage engine components and decrease lubrication efficiency.
3. Rough Idling, Poor Acceleration, And Increased Emissions
Other symptoms of an air-oil separator failure include rough idling, poor acceleration, and increased emissions. If you experience any of these symptoms, it is essential to have your Porsche inspected by one of our qualified technicians as soon as possible to diagnose and repair the problem.
Causes of Air-Oil Separator Failure
There are several factors that can contribute to an air-oil separator failure, including age, mileage, and driving conditions. Over time, the membranes and baffles inside the separator can become clogged with oil and debris, reducing their effectiveness and leading to failure.
Additionally, the air-oil separator can be damaged by extreme driving conditions, such as high-speed driving, track days, or aggressive driving. When the engine is subjected to high loads and speeds, it generates more crankcase gasses, which can overwhelm the separator and cause it to fail.
Preventing Air-Oil Separator Failure
While an air-oil separator failure is inevitable in most cases, there are several steps you can take to prolong the life of the component and reduce the risk of failure. Regular maintenance is key, including oil changes and inspections to ensure that the separator is functioning correctly.
Additionally, it is essential to avoid aggressive driving, which can place extra stress on the engine and increase the likelihood of separator failure. If you do participate in track days or high-performance driving, consider upgrading to a high-performance air-oil separator to ensure that your engine is adequately protected.
Replacing the Air-Oil Separator
If your Porsche experiences air-oil separator failure, it is essential to have the component replaced as soon as possible to prevent further damage to the engine. Replacing the separator is a relatively straightforward process and can be completed by one of our qualified technicians in a few hours.
The cost of an air-oil separator replacement varies depending on the make and model of your Porsche, as well as the severity of the damage. However, it is a relatively inexpensive repair compared to other engine components, and the cost is well worth it to protect your engine and ensure optimal performance.
Book An Appointment With Motorwerks Auto Group Today
Is your Porsche experiencing issues with its air-oil separator? Don't 
worry, Motorwerks Auto Group in Humble, TX got you covered. Our team of experts is ready to provide the necessary repairs to keep your Porsche running smoothly. Simply book an appointment with us and we'll take care of the rest.
You can trust our knowledge and experience to handle any air-oil separator repair needs your Porsche may have. Don't let this issue go unaddressed - book your appointment today and drive confidently knowing your Porsche is in good hands.
* Porsche 911 Turbo S Car image credit goes to: Brandon Woyshnis.