Watch for These Signs of a Porsche Air-Oil Separator Failure

by techplusaadmin February 14, 2023

Porsche models are renowned for their exceptional performance and engineering. One of the vital components in Porsche engines is the Air-Oil Separator (AOS.) This is responsible for separating the oil from the air that passes through the engine. This component is crucial in ensuring the smooth operation of the engine. It also prevents damage to other parts. However, the air-oil separator in your Porsche can experience problems and ultimately fail, leading to costly repairs. Check out some of the most common signs of a Porsche AOS failure below.

Poor Engine Performance

One of the most noticeable signs of a failing AOS in your Porsche is poor engine performance. The engine may struggle to start, misfire, or have reduced power. In some cases, the engine may stall or even fail to start at all. This is due to the buildup of oil and dirt in the engine, which can affect the performance of other components.

Smoke From Exhaust

Another common sign of a failing AOS is smoke from the exhaust. The smoke may be white or blue, depending on the amount of oil that has built up in the engine. This occurs because the oil is not being effectively separated from the air, which causes it to burn and produce smoke.

Reduced Fuel Efficiency

If you discover that your Porsche is using more fuel than usual, this could be a sign of a failing AOS. The buildup of oil and dirt in the engine can affect the fuel efficiency of your Porsche, as the engine has to work harder to compensate for the reduced performance.

Oil Leaks

If you notice oil leaks from your Porsche, it could be a sign of a failing AOS. The oil may leak from the engine or around the air-oil separator itself. This can lead to a decrease in the oil level and potentially cause damage to other engine components.

Unusual Engine Sounds

A failing air-oil separator can also cause unusual sounds to come from your Porsche engine. You may hear a knocking or ticking sound from the engine, which is a sign that there is excessive wear on the engine components. This is due to the buildup of dirt and oil, which can cause premature wear on the engine.

Check Engine Light

If the check engine light comes on in your Porsche, it could be a sign of a failure in any part of the vehicle including the AOS. The computer in your vehicle monitors the performance of the engine and can detect when there is a problem with the air-oil separator. This will trigger the check engine light and alert you to the issue.

Strong Odor

A failing AOS can produce a strong odor that is often described as a burnt oil smell. This odor is due to the oil that is being burned in the engine, which can create a pungent smell that is noticeable both inside and outside the vehicle.

Rough Idle

If your Porsche is experiencing a rough idle, where the engine shakes or vibrates excessively while idling, it could be a sign of a failing AOS. This is due to the buildup of oil and road dust in the engine, which can affect the performance of the engine.

Excessive Oil Consumption

If your Porsche is consuming more oil than usual, it could be a sign of a failing AOS. This happens because the oil is not being effectively separated from the air, which can cause it to be burned by the engine in excess.

Professional Repair of Your Air-Oil Separator at Tech Plus Automotive

If you need a reliable auto repair shop for your Porsche, Tech Plus Automotive is the place to go! We have expert mechanics who know your Porsche model inside and out. At Tech Plus Automotive, we care about our customers and know your time is valuable. We do our best to get your European car or SUV back on the road in top condition with a quick turnaround time. We are proud to serve Porsche owners from Phoenix, Paradise Valley, McCormick Ranch, and Scottsdale, AZ. Call us now to schedule your next appointment and allow us to earn your repeat business.