Audi A3 oil consumption

[ToxicBunny]

I think this is a design fault and a recall should've been done long ago on these engines but they'll never admit there's an inherent problem of course.

100% on this,.

My old mans A3 was chewing 1l of oil per 1000kms as well, but it was still just under warranty so he forced them to rebuild the entire engine... fuel consumption dropped like a stone to a much more acceptable level.

 

[qscwbt]

Usually unleaded 95. Why do you ask?

93 on a turbo car is living dangerously

 

[RogueTr00per]

I think this is a design fault and a recall should've been done long ago on these engines but they'll never admit there's an inherent problem of course.

Audi's internal document on this engine is TPI 2026711/7. Updated piston and piston rings in production from week 44 2011.http://www.a5oc.com/forums/a5-general-q/90849-2-0-tfsi-oil.html#post941673

I think i saw it mentioned that the only reason it's not at a recall level is because it's not every engine affected. I suppose they know exactly which engine codes are affected and it's just not company policy to do the right thing!

Just looked at the maintenance list for my last service, looks like my model year is actually 2011[*]. How does that work? If registered late enough in the previous year then it's considered the following year model?

Oh, so I called Audi SA today and they will call me back next week. I get the impression that the dealership in question may not have even reported back to them before presenting me with the quote for repairs that they did...

edit: [*] 2011 it is then, thanks to TJ99, the 10th digit in the VIN tells you the year model https://mybroadband.co.za/vb/showth...r-is-*blush*?p=9974526&viewfull=1#post9974526
https://en.wikipedia.org/wiki/Vehicle_identification_number

 

[RogueTr00per]

So I had a compression test done for my A3 1.8T, the readings for the 4 cylinders ranged from 10.8 to 11.2 bar. Combined with my high oil usage (close to 900ml per 1000km) does anyone here want to venture a guess as to what the compression test indicates?

 

[qscwbt]

should be at about 12.4 bar. new motor about 13.7
9.6 bar is to low
what your km? you might have cracked ringlands. valve leak or ring issue

 

[Sinbad]

should be at about 12.4 bar. new motor about 13.7
9.6 bar is to low
what your km? you might have cracked ringlands. valve leak or ring issue

Sure about that? Most turbocharged engines run at 9:1 or thereabouts...?

 

[RogueTr00per]

I'm on 73,000km now.

 

[qscwbt]

Sure about that? Most turbocharged engines run at 9:1 or thereabouts...?

I was talking about a compression test. Testing the pressure in cylinder when cranking.
You talking about compression ratio which is 9.5 : 1 for the 18 turbo audi

 

[qscwbt]

SD

You will have low pressure if
rings are worn
ring land crack ( common on turbo cars) google audi 1.8 t ringlands
leaking valves
damaged Head gasket.

with the amount of oil used I would say cracked ringlands

 

[Sinbad]

I was talking about a compression test. Testing the pressure in cylinder when cranking.
You talking about compression ratio which is 9.5 : 1 for the 18 turbo audi

I know.

So if you take one cylinder full of air at one bar, and reduce its volume to 1/9.5th the original (the compression ratio), what would you expect the in-cylinder pressure to be?

 

[qscwbt]

I think we missing each other. he asked about a compression test result. I responded regarding a compression test, tested in bars
We never spoke about compression ratio. I know the ratio determine the compression but as the vehicle gets older and worn it looses compression. thus the compression test see what pressure it can maintain. So does not matter what the ratio is worn rings will for example will give a low bar reading of 8 or 9 bar.

 

[Sinbad]

I think we missing each other. he asked about a compression test result. I responded regarding a compression test, tested in bars
We never spoke about compression ratio. I know the ratio determine the compression but as the vehicle gets older and worn it looses compression. thus the compression test see what pressure it can maintain. So does not matter what the ratio is worn rings will for example will give a low bar reading of 8 or 9 bar.

OK I think I was confused...

Anyway what's more important is that there should be less than 15% difference between all the cylinders. A big difference on one of them indicates a problem with that cylinder.
If they're _ALL_ below spec, then you're looking at a failure on all four cylinders which is not particularly likely?

 

[qscwbt]

Sinbad I agree all 4 cylinders low is strange.

 

[RogueTr00per]

OK I think I was confused...

Anyway what's more important is that there should be less than 15% difference between all the cylinders. A big difference on one of them indicates a problem with that cylinder.
If they're _ALL_ below spec, then you're looking at a failure on all four cylinders which is not particularly likely?

Not likely but possible if it's due to pistons and rings they know are problematic hence from Q4 2011 Audi decided to change those parts for new engines going forward?

 

[RogueTr00per]

OK, so an update from me... Audi SA came to the party and settled the tab on my repairs as a once off gesture of goodwill. Audi Germany might have had a say in this... Pistons, rings, bearings, timing chain and 1 conrod were replaced last week.

The car drives really nicely, I believe I'm supposed to take it easy for a few hundred Km's to run it in?

One thing I noticed today (and never noticed before) there is a fan running (under the bonnet) for just under a minute, even after I've switched off the ignition. Would it be the radiator or turbo doing their cool down thing? Is this normal on a 1.8T 2010 or 2011 model?

 

[SauRoNZA]

OK, so an update from me... Audi SA came to the party and settled the tab on my repairs as a once off gesture of goodwill. Audi Germany might have had a say in this... Pistons, rings, bearings, timing chain and 1 conrod were replaced last week.

The car drives really nicely, I believe I'm supposed to take it easy for a few hundred Km's to run it in?

One thing I noticed today (and never noticed before) there is a fan running (under the bonnet) for just under a minute, even after I've switched off the ignition. Would it be the radiator or turbo doing their cool down thing? Is this normal on a 1.8T 2010 or 2011 model?

Could very well just be the car running a bit hotter while being run in so it would be the radiator fan.

It's also summer now so it's not too abnormal for the fan to go on during shut off.

It's normal for pretty much any car.

 

[Kloofvreter]

OK, so an update from me... Audi SA came to the party and settled the tab on my repairs as a once off gesture of goodwill. Audi Germany might have had a say in this... Pistons, rings, bearings, timing chain and 1 conrod were replaced last week.

The car drives really nicely, I believe I'm supposed to take it easy for a few hundred Km's to run it in?

One thing I noticed today (and never noticed before) there is a fan running (under the bonnet) for just under a minute, even after I've switched off the ignition. Would it be the radiator or turbo doing their cool down thing? Is this normal on a 1.8T 2010 or 2011 model?

Jirre what a battle! Good for you!

 

[RogueTr00per]

Jirre what a battle! Good for you!

Yeah, i was inordinately patient with the process and fortunately the outcome was good. Also had a lot of other big fish to fry so that distracted me too from how long it was taking!

Might just buy another Audi one day as they have redeemed themselves somewhat in my eyes

 

[SauRoNZA]

Yeah, i was inordinately patient with the process and fortunately the outcome was good. Also had a lot of other big fish to fry so that distracted me too from how long it was taking!

Might just buy another Audi one day as they have redeemed themselves somewhat in my eyes

Generally I think they would be accommodating to a nice guy with a bit of patience.

It's the guy hounding them every five minutes that they make it hard for.

 

[Adenoid Hynkel]

Generally I think they would be accommodating to a nice guy with a bit of patience.

It's the guy hounding them every five minutes that they make it hard for.

True. I've had the exact same issue with my wife's Audi before I sold it. Audi SA was very accommodating, which I can't say about the dealership.

In the end they covered everything except the timing chain. The dealership told Audi SA that the timing chain was a wear and tear item and that it was normal to wear out on a car that had less than 80.000km on the clock. I agreed to the wear and tear bit, but a timing chain to be worn out on a vehicle that has less than 80.000km is not normal. If the vehicle would've gone in for the next service they wouldn't have even looked at it, as A) apparently the schedule to have it changed is at 180.000 and B) you have to take the engine out to change it.

I have spoken to StrontiumDog about this. They replaced his timing chain. It seems both of us had the same issue on the vehicle. There should be some general guideline of what will be replaced and paid for, and not on a per case basis.

I've sold the Audi so I couldn't really be bothered anymore. But it would be good if Audi SA would implement some sort of a guideline for this issue. I'll still follow up with them about this, and hopefully the next oak doesn't have to battle and wait months if in the same situation.