4.0TFSI Turbo failure

4.0 V8 40v biturbo TFSI - 553 bhp
4.0 V8 40v biturbo TFSI - 597 bhp (Performance)
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Paulm
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Re: 4.0TFSI Turbo failure

Post by Paulm » Mon Sep 23, 2019 11:55 am

Tadass910 wrote:
Mon Sep 23, 2019 11:42 am
Jaz9443 wrote:
Sun Sep 22, 2019 4:35 pm
Hi All,

I’ve recently experienced the same issue on my C7 RS6. Oil strainer blocked and considerable damage to the turbo housing. Currently being refurbished. Due to come back to my mechanic next week so hopefully will have her back on the road. Although I have high miles it’s still 2015 and disappointing such an issue could occur!
High mile means how much miles?
Paulm wrote:
Wed Sep 18, 2019 10:58 am
Sorry to hear. pretty poor design. Must be thousands of these engine just waiting to fail given they are used in various models all over the world. Not good.

I miss my V8TT but not the pain it was causing. Turobs, injectors, valve springs and sticking oil scraper ring all issues that seem to be getting more common. None of which are cheap to fix.

If anyone wants a link to very cheap turbos (and seemed very very good quality) give me a shout
Every tuner sais that this engine is a masterpiece that Audi done, and you say otherwise, maybe there are minor issues to some engines, but this 4.00 tfsi engine most reliable in Audi history. Of course you need to take care about your engine change oil every 15.000 km at least and do all services.
I was referring to the oil feed design. 10000% bad design, don't care who says anything different. You just need to look at all the failures popping up.
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

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Paulm
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Re: 4.0TFSI Turbo failure

Post by Paulm » Mon Sep 23, 2019 12:05 pm

uplandsway wrote:
Mon Sep 23, 2019 11:47 am
I’d be interested to see the engine oil changes on these cars out of curiosity more than anything

Mine has been tuned since December of last year and have done engine oil service and spark plugs amongst other things every circa 5k miles..


Sent from my iPhone using Tapatalk
Mine had full dealer history. Can't remember the mileage frequency as I sold it once fixed
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

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Golfather
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Re: 4.0TFSI Turbo failure

Post by Golfather » Mon Sep 23, 2019 2:01 pm

Tadass910 wrote:
Mon Sep 23, 2019 11:52 am
For tuned car maybe every 5k miles is necessary to do oil change, but for stock car every 15.000km more than enough
Oil changes, tuning, service history, makes no difference at all!
Theres a reason why there is a revised oil screen design released by Audi. The previous design is prone to blocking and causing turbo failure

Just read up on all the reported failures!

Tadass910
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Re: 4.0TFSI Turbo failure

Post by Tadass910 » Mon Sep 23, 2019 2:11 pm

So it should be changed under warranty?

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uplandsway
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4.0TFSI Turbo failure

Post by uplandsway » Mon Sep 23, 2019 2:25 pm

Golfather wrote:
Tadass910 wrote:
Mon Sep 23, 2019 11:52 am
For tuned car maybe every 5k miles is necessary to do oil change, but for stock car every 15.000km more than enough
Oil changes, tuning, service history, makes no difference at all!
Theres a reason why there is a revised oil screen design released by Audi. The previous design is prone to blocking and causing turbo failure

Just read up on all the reported failures!
My car is a MY17, reg 31.12.2016 so should surely have the revised screen?? Image


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Cheers,
Stevie F
2016 C7.5 RS6 Performance

dasquade
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Re: 4.0TFSI Turbo failure

Post by dasquade » Mon Sep 23, 2019 5:20 pm

Golfather wrote:
Mon Sep 23, 2019 2:01 pm
Tadass910 wrote:
Mon Sep 23, 2019 11:52 am
For tuned car maybe every 5k miles is necessary to do oil change, but for stock car every 15.000km more than enough
Oil changes, tuning, service history, makes no difference at all!
Theres a reason why there is a revised oil screen design released by Audi. The previous design is prone to blocking and causing turbo failure

Just read up on all the reported failures!
Lets not over dramatise it please :).
You make it sound the latest revision screen is the ONLY way to go, well guess what...without proper service even that one will clother up and make the turbo's fail.
It all depends how you drive the car, how you let it cool down, what oil you use, how frequently you replace oil and if you use oil cleaners imho.
Don't get me wrong, clearly there is an issue and it is especially sad the location of the screen is hard to get by (but what is on theseblocks!!)

Tadass910
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Re: 4.0TFSI Turbo failure

Post by Tadass910 » Mon Sep 23, 2019 7:12 pm

dasquade wrote:
Mon Sep 23, 2019 5:20 pm
Golfather wrote:
Mon Sep 23, 2019 2:01 pm
Tadass910 wrote:
Mon Sep 23, 2019 11:52 am
For tuned car maybe every 5k miles is necessary to do oil change, but for stock car every 15.000km more than enough
Oil changes, tuning, service history, makes no difference at all!
Theres a reason why there is a revised oil screen design released by Audi. The previous design is prone to blocking and causing turbo failure

Just read up on all the reported failures!
Lets not over dramatise it please :).
You make it sound the latest revision screen is the ONLY way to go, well guess what...without proper service even that one will clother up and make the turbo's fail.
It all depends how you drive the car, how you let it cool down, what oil you use, how frequently you replace oil and if you use oil cleaners imho.
Don't get me wrong, clearly there is an issue and it is especially sad the location of the screen is hard to get by (but what is on theseblocks!!)
So my question would be: shall I ask Audi dealer to change it just to be sure my turbos will last longer? My car is 2014 April and I have 111.000 km on

P.s is there any official bulletin by Audi that it’s shows that oil screen needs to be changed?

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Golfather
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Re: 4.0TFSI Turbo failure

Post by Golfather » Mon Sep 23, 2019 10:05 pm

reread first page of this thread:

viewtopic.php?f=76&t=132423&p=918598&hi ... en#p918598

TSB Details:

TSB (rev2) 2044640/2 November 21, 2017, listed these replacment parts:

079103175C Check valve
079115175G Oil strainer

These TSB revisions also listed the same screen (oil strainer) & check valve.

TSB (rev3) 2044640/3 May 14, 2018

TSB (rev4) 2044640/4 May 22, 2018.

TSB (rev5) 2044640/5 November 28, 2018

The version 1 of the Turbo TSB has the F revision turbo oil supply strainer (screen):

"21 Engine difficult to start, turbocharger damaged, V8 4.0TFSI
21 17 24 2044640/1 February 2, 2017"

"Production Solution
Not applicable."

"079103175C Check valve

079115175F Oil strainer"

Version 3 of the Turbo TSB:

"21 Engine difficult to start, turbocharger damaged, V8 4.0TFSI21 18 29 2044640/3 May 14, 2018"

"Production Solution
Optimized oil strainer 079115175G for oil supply lines to turbochargers in the cover in the inner valley of engine. The oil strainer and check valve 079103175C must always be replaced to ensure proper oil flow to the turbochargers."

"079115175G Oil strainer"

BugsyM
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Re: 4.0TFSI Turbo failure

Post by BugsyM » Tue May 11, 2021 10:34 pm

Golfather wrote:
Tue Jul 02, 2019 10:56 pm
Paulm wrote:
Tue Jul 02, 2019 9:15 pm
Sorry to hear. Pretty much guarantee it will be a blocked turbo supply oil screen. You must get it cleaned when you fit the turbos or they will just fail again.
The oil strainer must be replaced to a later superceded part, which does not get clogged as easily:

Original oil strainer:
079115175F
Image

Image


Revised superceded part, allowing much more flow:
079115175G

Image

Image
When was the later superceded oil strainer introduced in production?

shinefactorysf
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Re: 4.0TFSI Turbo failure

Post by shinefactorysf » Wed Apr 20, 2022 12:29 am

Hello all,

A bit late in the game but some justice in the US for our predicament: the NHTSA have issued a recall for this issue just last month (2022 March) - at least some proactive recourse for others.

https://www.nhtsa.gov/vehicle/2013/AUDI ... WD#recalls
Attachments
RCAK-22V178-9203.pdf
NHTSA Recall Document on Turbo Oil Screens
(629.88 KiB) Downloaded 68 times

adamza
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Re: 4.0TFSI Turbo failure

Post by adamza » Wed Aug 10, 2022 9:03 pm

Came across this over Google and signed up to add that Audi UK has issued a recall to replace the oil strainers. 2016 FL. Work completed and just awaiting recalibration of cameras/parking sensors for the car to be returned. There is no warranty on the car due to age.

Tadass910
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Re: 4.0TFSI Turbo failure

Post by Tadass910 » Fri Aug 26, 2022 9:34 pm

adamza wrote:
Wed Aug 10, 2022 9:03 pm
Came across this over Google and signed up to add that Audi UK has issued a recall to replace the oil strainers. 2016 FL. Work completed and just awaiting recalibration of cameras/parking sensors for the car to be returned. There is no warranty on the car due to age.
How long it took everything to do? Audi sais 3 working days.

Cathedrill
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Re: 4.0TFSI Turbo failure

Post by Cathedrill » Mon Dec 05, 2022 4:00 pm

its late 2022 and this is still an issue. I had an S car that had this fault. Audi didnt even tell me, i found it myself by researching the car. i waited 7 months for audi to book me in. i also noticed a cylinder misfire but i didnt say anything, i wonder if they will notice anything. audi said it will take 3 full days to do this job, and their places get 1-2 cars a week....

Tadass910
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Re: 4.0TFSI Turbo failure

Post by Tadass910 » Thu Dec 22, 2022 8:48 am

Cathedrill wrote:
Mon Dec 05, 2022 4:00 pm
its late 2022 and this is still an issue. I had an S car that had this fault. Audi didnt even tell me, i found it myself by researching the car. i waited 7 months for audi to book me in. i also noticed a cylinder misfire but i didnt say anything, i wonder if they will notice anything. audi said it will take 3 full days to do this job, and their places get 1-2 cars a week....
And? Did they changed it?

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