When you think of Porsche vehicles, it’s likely that you associate them with luxury, power, and high-quality performance. Usually, your expectations are met when you take a ride in these fine German cars. Unfortunately, Porsche vehicles are just as susceptible to damage as any other car that you could drive. The extra money that you paid doesn’t quite make it invincible. All auto parts fail at some point or another.

One common problem that Porsche drivers often experience is the failure of the air-oil separator in the engine. While this may sound insignificant to you now, the failure of this part affects the entire performance of your vehicle. Today, we are going to discuss what the air-oil separator does, the warning signs of failure, and where you can go to resolve your issue.

What is the purpose of the air-oil separator in a Porsche?

Most people don’t exactly know what function that every part of their vehicle provides, but don’t worry; this one is pretty self-explanatory. It separates the air and the oil so they don’t mix in the engine.

When the air and oil do mix, the damage to your Porsche can be severe. Your vehicle requires a certain air-oil ratio to be maintained in order to run at optimum conditions. When the ratio changes, the exhaust system does not function properly, and the engine itself begins to malfunction. If the problem is left unchecked, this can trigger a domino effect and cause lasting damage to other parts. That is the last thing that you want to happen, so read up on the warning signs of air-oil separator failure. If you catch the problem early, you save yourself a lot of time and money.

What are the warning signs of air-oil separator malfunction?

When the air-oil separator in your Porsche’s engine begins to fail, you could notice a few little warning signs. Take note of the frequency of each symptom. You want to catch this malfunction as soon as possible. These warning signs are:

Oil leaks

It stands to reason that when the air-oil separator fails, it means that some part of the barrier between the two chambers has been broken. This causes the oil to leak from your vehicle. You will be able to tell because oil is dark and has a distinct smell. Gasoline is nearly transparent, whereas coolant is colorful. Oil leaks can stem from several other problems, but do not rule the air-oil separator out.

The illumination of the check engine light

Since the air-oil separator is part of your engine, failure will cause it to malfunction as well. If your check engine light comes on, you should immediately get your Porsche inspected as the light can be one for many reasons.

Dark smoke coming from the exhaust

When your oil is mixed with the air in your engine, it produces a noxious black smoke. This is a sure sign that something is wrong because the exhaust is not supposed to be dark.

Where do you go for Air-Oil separator repairs?

Porsches are delicate vehicles with a great deal of technology that require attention to detail and great care. While standard mechanics are trained to work on most domestic cars and some European models, they may not have the expertise needed to get the job done right the first time.


If you want to save yourself from stress and costly repairs, come and see the qualified technicians at Dell’s Service Center. We have been in the business of satisfying customers for almost 50 years. Many auto shops can’t compete with that amount of experience. We specialize in servicing these brands:

  • Audi
  • BMW
  • Jaguar
  • Land Rover
  • Mercedes
  • Mini Cooper
  • Porsche
  • Saab
  • Volkswagen
  • Volvo

No matter what problem you are facing with your vehicle or what European car you drive, you can stop by Dell’s Service Center today and get the highest level of care possible without paying for dealership prices. If you are in the Green Bay, Manitowoc, or Sturgeon Bay areas of Wisconsin, make an appointment with Dell’s Service Center. We will help you get back on the road in no time.

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