heelboy

Hello all,

I purchased an Audi A4 2014 2.0 T premium sedan about 2.5 years ago. The car had no oil consumption issue and I never had to top it off or anything till last November. Basically I topped my car off with oil the first couple times and I was averaged approximately 800-900 miles per quart of oil top off. Later in February the oil light message started coming on after 400+ miles. Basically I had to start topping off the oil about every 400-450 miles which is extremely low. I took it to Audi but they want to charge me like $200 for an oil consumption test, even thought I already know it will fail it. I am a little worried because I may have to sell this car as I have been reading piston ring replacements can cost more than $3k. Any advice on what I can do? Should I still take it to a mechanic for them to first detect the problem and pay for the labor? If anyone can help me out that would be appreciated. Is there a possibility it will consume more and more oil as I drive it? Since it is about 400 miles a top off I definitely do not want it to reach 200 miles a top off or something like that.

SMac770

You can either do a piston/rings replacement.
Or roll the dice and try another engine.
Or do a 3.0T swap. :-)
This issue is probably 1/3 of all the discussion on the Internet about this engine. So nothing new, nothing surprising, nothing unexpected. And how to handle it is equally been documented out there. A number have rebuilt the engine themselves, a number have had someone rebuild for them, a number have just done an engine swap (which means they've just reset the dice to when it'll start on the new engine, unless it was verified rebuilt already).

And people dumping these when this issue starts is why no one should buy one of these without a huge discount or validated documentation that the piston/ring work has already been done. Because "oh no" means jack nothing between strangers to the question of "does it burn oil".

If AoA isn't covering the cost of the repair, you don't say how many miles are on the car, you probably don't want the dealership fixing it anyway. Can't imagine what a dealership bill for that work would be these days. The dealership will always bill a hour labor "diagnostic fee" for anything you ask them to figure out.

You could try replacing the PCV in case that's the issue. But at a qt/400 miles, highly unlikely that's your issue.

heelboy

thank you, would replacing the pcv valve somewhat improve the consumption?

heelboy

thank you, would replacing the pcv valve somewhat improve the consumption? lastly, is the mileage per oil top off going to keep getting worse?

SMac770

Not if it's not the cause of the issue. The PCV can cause oil consumption, thus it's the common first thing to test. But if you're at 400 miles/qt, it's almost certainly the rings, and the PCV is probably not involved in the cause. *not to say that replacing the rings will not mean there's a broken PCV which will still cause some consumption once the rings are fixed".

I imagine it gets worse over time, that's what mine did. Was fine, then just started crashing within 5k miles, was down to 400-600 miles/qt before I had the rings done. Some people just let it be and top off, but a quart per gas fill up is a bit extreme.

Carl with a C

I have a 2014 2.0T Q5 that is going thru a quart ~400 miles. It's high mileage (137K) and runs fine otherwise. I do not have any blue or black smoke involved, and I get longer intervals if I am driving highway without stopping. So I am wondering if it could be a turbo problem instead of bad rings (turbo much cheaper to replace). Has anyone successfully resolved oil consumption problem with a turbo replacement?

Gobbleygook

I tried the turbo replacement on a 2010 A4 2.0T. No improvement. Using about a quart every 100 miles, I was led down this path because my plugs were not fouled, there was some exhaust smoke but really not a lot, at least not enough to make an amateur like me think it matched the excessive volume of oil that was disappearing. The car does have 140k miles but a VIN check at an Audi dealer showed that the piston rings were repaired at about 70k miles.

chris_wt

How many miles on the car?

With the recent spike in used car (and everything else) prices it might be better to invest in a repair.

Gobbleygook

So I had a strange recent experience in that i tried an oil additive, Rislone "High Mileage Ring Seal and Smoke repair". At first I thought it was a miracle. Zero, and I mean zero oil loss for about 150 miles. Then lost half a quart after another 100 miles. Now its looking like a steady increase in oil loss.