Why is my Audi A5 2.0T burning so much oil?

Short answer: The 2.0-liter turbo four in the 2010–2012 A5 is known for burning oil because of its original pistons and rings. Owners describe dealers running an oil consumption test and, when the car failed it, putting in updated pistons and rings under warranty. Out of warranty, that's a big engine job, so rule out simpler things like the turbo or the PCV system first with a compression test and inspection.

Symptom: The low-oil warning comes on well before the next change, you're adding a quart every 1,000–3,000 miles, or there's blue smoke at startup.

What to check first

1. Check the oil every fill-up on level ground and log what you add.
2. Ask an Audi dealer for an oil consumption test. One owner's dealer set up a test, while another dealer called a quart every 2,000–3,000 km (roughly 1,200–1,900 miles) normal.
3. Have a compression test done and check the turbo and PCV system before committing to a piston job.
4. If you rebuild it, make sure the pistons are the updated design. Members point to modified pistons and rings, not the originals.

Likely causes

1. Original pistons and rings. Owners describe updated pistons and rings as the fix.
2. Turbo seals or PCV problems. Members said to rule these out with a compression test and inspection first.

What it usually costs

One owner doing the job himself was looking at a $400–500 piston and ring kit. Owners didn't post shop prices for the full job, and those pistons were covered under warranty for others. Keeping the oil full costs a quart at a time.

Is it safe to keep driving?

Yes, as long as you keep the oil topped up. Running it low on oil is what damages the engine. Verify with a mechanic.

DIY or shop?

Oil checks are DIY. Dealer or engine shop for the consumption test and piston and ring job. An Audizine member recommended a machine shop measure and hone the cylinders instead of buying a kit online and hoping.

Recalls, bulletins and complaints in plain words

• No recall covers oil consumption on the 2010–2012 A5 in NHTSA's recall data.
• NHTSA complaints: 19 keyword-matched complaints for Audi A5 (all engines) 2009–2012 (of 67 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-20; keywords: oil consumption, burn(s, ing, ed)? oil, low oil, oil light, oil level, quart, piston, ring) (NHTSA returned no complaint data for 1 model-year queries).

What owners report

• In oil consumption on AudiWorld, a 2010 A5 cabriolet 2.0T owner got the oil light about 5,000 km after a service. One dealer said about a quart every 2,000–3,000 km was normal, and another set up a 1,000 km consumption test. A tech said the fix is new pistons covered under warranty, done dozens of times without a noticeable mileage drop. A Q5 owner said his mileage went up slightly after pistons and rings.
• In Recommended Pistons and Rings for 2011 A5 2.0T on Audizine, a 2011 A5 2.0T owner said Audi and the dealer wouldn't help with his oil consumption and asked about a $400–500 piston and ring kit. Members told him to do a compression test first, since the turbo could be eating oil, and suggested a rebuild shop to measure and hone. One member pointed to the updated piston and ring set, with oversize options if the bores are honed.

My take

My advice as a former lube tech: on these 2.0Ts I never trusted the oil-life reminder alone. Check the stick yourself, and if it's using more than a quart between fill-ups, get a dealer consumption test on record.

Vehicle focus: 2010–2012 Audi A5 and A5 Cabriolet with the 2.0L turbo four (owners report the same issue on the A4 and Q5 2.0T).

Safety / mechanic note

Running the engine low on oil can damage it. Verify with a mechanic.