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Excessive Oil Consumption on my 2017 Audi Q5 2.0T – Low Oil Warnings

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Mike T. · rep 0 · May 26, 3:47 AM · 1 replies · solved · Question

Vehicle: 2017 Audi Q5 2.0T Premium

Hey everyone,

I'm reaching out because I'm concerned about the oil consumption in my 2017 Audi Q5 2.0T Premium. It seems like I'm getting a 'low oil' warning light on the MMI every 2,000-3,000 miles, requiring me to add a quart or more of oil. I had an oil change done about 4,000 miles ago, and I'm already seeing the warning again.

This feels excessive, and I'm worried it might indicate a bigger problem. I haven't noticed any visible leaks under the car or excessive smoke from the exhaust. My previous cars never consumed oil like this.

Is this normal for a 2017 Q5 2.0T? Has anyone else experienced this, and what was the cause or solution? Thanks for any help!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 3:47 AM

0

ClearTheCode admin answer:

Excessive oil consumption on a 2017 Audi Q5 2.0T is a known concern for some owners of this engine generation (EA888 Gen 3). While some oil consumption is considered normal for turbocharged engines, needing to add a quart every 2,000-3,000 miles can indeed be a sign of an underlying issue.

Common Causes for Excessive Oil Consumption:

  1. PCV (Positive Crankcase Ventilation) Valve Issues: A failing PCV valve or its associated components can lead to increased crankcase pressure, forcing oil past piston rings or valve seals, or drawing oil into the intake manifold. This is a very common cause.
  2. Turbocharger Seal Leaks: The seals within the turbocharger can wear out, allowing oil to leak into the intake or exhaust system. This might not always produce visible smoke, especially if the leak is minor.
  3. Piston Rings/Oil Scrapers: In some cases, issues with the piston rings or oil scraper rings can lead to oil bypassing into the combustion chamber. This was a more prevalent issue in earlier EA888 generations but can still occur.
  4. Valve Stem Seals: Worn valve stem seals can allow oil to seep into the combustion chamber, particularly when the engine is cold or during deceleration.
  5. External Leaks: Even if you don't see drips, small external leaks from valve covers, timing chain covers, or oil pan gaskets can contribute to consumption over time. These might evaporate before hitting the ground.

What to do:

  1. Monitor Consumption Closely: Keep a detailed log of when you add oil, how much, and the mileage. This data will be crucial for a technician.
  2. Check for PCV Valve Symptoms: Listen for any whistling or hissing sounds from the engine bay, especially around the PCV valve area.
  3. Regular Oil Level Checks: Continue to check your oil level frequently using the MMI system and top off as needed to prevent engine damage.

When to See a Shop:

It's highly recommended to take your Q5 to an Audi dealership or a specialist shop for a thorough diagnosis. They can perform specific tests, such as:

  • PCV System Diagnosis: Checking the function and integrity of the PCV valve and related hoses.
  • Compression and Leak-Down Test: To assess the condition of the piston rings and valves.
  • Oil Consumption Test: Audi dealerships can perform a controlled oil consumption test, where they fill the oil to a specific level, seal the dipstick/fill cap, and have you return after a certain mileage to accurately measure consumption. This is often required for warranty claims if applicable.
  • Visual Inspection: For any external leaks that might be hard to spot.

Addressing excessive oil consumption is important to maintain engine health and prevent potential long-term damage.

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