And this is why I’m still running a 27 year old C4 A6. It’s now on 355k and the engine has never been apart. Will still go between 6k oil changes without topping up too. Making machines durable is a way of “saving the polar bears” that seems to have been forgotten.

Got to greatly admire your skill, professionalism and honesty not to mention your nerves of steel to tackle such an expensive repair with such sketchy "technical information" from Audi. No used Audi's for me thanks for the videos.

I have owned some Audis, and I appreciate your channel, I won't own an audi out or warranty anymore but I applaud your expertise and tenacity to make them right for customers and as entertainment for your viewers

I’ve got a 2014 w/125K miles, no issues and no rattles but wow this one is an eye opener for 3rd gen engines. Great video

I bought my last Audi 20 years ago, a 1990 Audi 80 with the solid 1.8 engine running on petrol and LPG. In those days Audis were solid cars that could last half a million kilometers on LPG without engine failure or manual valve adjustment ( engines had self adjusting valves). Today, the Audi's look good buy you need 'Audi money' to keep it on the road.

Excellent video guys. What a way to design an engine. It seems all the good practices learnt over the years has gone out the window, in the guise of emission statistics 🙄

I love watching your channel and the rebuilds you do....I still find it amazing how much carbon builds up in the Audi engines...given today's technology with fuel and oils and dealer servicing the amount of carbon is unreal...I used to overhaul old heavy duty diesel engines on earth moving equipment that had done thousands of hours running and cannot remember ever seeing one with so much carbon builds up as you are showing us..thanks for sharing you quality workmanship and dedication to doing the job right..👍👍

Great video - huge skill and professionalism evident. I ran Audis for 20 yrs (all S8's) but watching your videos I wont be doing so again... Great to see a preventative maintenance approach (like an airplane) here but the economics are surely questionable i.e. almost £10k spent on a car worth trade in of £25 - 27k? What is next to fail? Probably suspension pumps etc? Terrible engineering compromises to meet so called green targets; how many of these cars will end up in scrap yards at 10 - 12 yrs old as no one will be able to afford to maintain them. (Look at the recent SH values of decade old Range Rovers / Discoverys etc to see this). Finally, its the first time I heard of oil pressure remaps - very interesting / useful.

I can remember when the biggest headache you’d have in a car was the automatic choke would stick 😂 and your points would wear out

You guys take pride in what you do. It is refreshing to see a knowledgeable mechanic who does a decent job.

I find you videos absolutely brilliant your repairs give so much detail. Unfortunately after watching them I would not recommend an Audi to anyone that showed an interest in purchasing one. My first move would be to guide them to your channel to make them aware of possible faults. All the best to you all in the future and keep the videos coming.

Great video, thanks for sharing in such detail. The thought of owning one of these out of warranty fills me with dread tbh

Happy New Year chaps. Thanks for the very interesting repair jobs over the last 12 months.

Thanks you for your patience and for all the thoughts. Very useful

Just glad I have an older Audi 1999 a6 4.2 40V last of the great engines!!!!!!! Happy new year to all🇬🇧

I'm new to the channel and appreciate seeing some real work done as apposed to the usual someone changing brake pads. Please no brake jobs.

great informative video thank you. The timing chain will supply and fling plenty of oil to the cam gears etc. My approach with these V6 VW diesels has been to 1/2 the service internal for the oil and filter changes. Also reprogram the start/stop functionality to default off instead of on. Pretty much all of your issues will go away. I change oil at 7-8,00 kms max. They are an incredibly durable, efficient and powerful engine. Unfortunately many people run well over their service intervals (even with new cars) something you just can't do with these engines.

25:42 Dobre! :) Amazing work guys. Thank you for the detailed design review.

Agreed. I have a 1.2tsi with oil changes every 8000 miles. The timing chain is still perfect and engine clean inside after 130k miles. Direct injection and long oil intervals means soot in the oil causing wear on tight clearance items like chains.

Brilliant video. Great attention to detail and not accepting the Audi manual fitting instructions without applying proper engineering principles. Top job

Fascinating technical content in this video. Thank you.

Happy new year!!!🎉 Nice view about audi engineering and engine fault. How I see, it is not only audi engine problems, this problem with world car manufacturers, because the cars make ecological (friendly).

Oh this is gonna be a good video, doggo mechanic is already running around the workshop in the first minute and probably heading for the phone to order a huge amount of parts from TPS

It's mad to think Audi and VW used to be the cars to buy for reliability and bullet proof engine's. My 2005 passat TDI 200k miles ended up in Cyprus and is still working fine. What the hell happened. Love the channel just feel sorry for the everyday people who buy these cars. Keep up the good work 👍👍

Happy New Year guys. thank you for your videos :)

Good to see you guys back.

Audi know about this but won’t admit there is an issue. I had the exact same problem on a 2016 allroad with the 272PS unit. Warranty didn’t want to know nor would they share the part numbers or the changes to the parts. Car had approx 52k miles on when the chains started to rattle. The sprockets on the camshafts were more worn than the one on this Q7 so it’s done well considering the mileage

prevention is always better than cure...hope you had a good xmas and wishing everyone an abundant wealthy and healthy leap year...great work as always, and I need to have an oil change and also the timing chain done on my S4...I'm sure there will be other things, given its done over 108k and is a 2014 B8 facelift

you guys are the lick i have a s4 b9 78000 full Audi service history and i think i will be spending some big money with you soon. I Love your vlogs

Thx, for making people aware of the pain of these variable oil pumps another not very effective fuel saving system that destroys engines. I hate the BS of extended service intervals + low tension oil rings on newer engines. Like is it really a clean engine when you have to tear it apart at 150.000-200.000 km, just to saving single digits reduction Co2 emission. I 100% support cleaner engines but the balance between emissions and longevity for sure took a wrong turn.

Could watch your videos all day .very clever

I have been driving Audi for over 25 years and every new car I had, had more problems then the one before. The Running costs of Audi are insane and with pain I will move to another brand of cars.

What the actual F??? Planned obsolescence? That intake carbon makes a DI engine look like child’s play. I seriously can’t see why this was allowed to pass a quality control check for durability and longevity. Mad props to the shop for putting this info out. Seems like a good way to create an excuse to stop selling TDI models. I think I’ll stick to my 4.0T.

Very in depth video guys, and you have put me off buying a vag 3.0tdi car lol . Engine is made to fail from how you have described rebuilding top end .

Brilliant job and excellent explanations, thanks 👍🏼

You really need to make VAG Technic shirts that say "MYSTICAL & MAGICAL" !!

Nice work. Like watching you videos. 💪

Nice work, good job! I've had a Porsche Cayenne 2009 first gen facelift, 3.0 V6 TDI bought from new and sold it at 330 000 km (about 206 000 miles). Oil service every 15 000 km, never had any issues. I have now a 2011 Phaeton 3.0 V6 TDI (I think the same engine) 60 000 miles ( about 100 000 km). Car seems perfect now (had it for 9 months), will see how it goes from now. Cheers!

Audi need this man to make the ultimate engine

Another excellent technical video, thanks

I think i stay with the 2 liter tdi. The 3 liter V6 tdi is my dream and has to stay my dream with this information.

Starting off 2024 with a VAG Technic video !!!

Hope you are feeling better now, great new video.🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿👍👍

The later oil pumps have different specifications higher mid and upper range pressure, so I recommend changing the pump while the engine is out. Regards, Dave London

man ur super precise....i feel like my 2-5 tdi is a lottery ticket compare to this....love your work...because of you i dared to buy non working engine old allroad, fuel pump problem and some suspenssion arms....only because of your videos iv seen before and internet in global...my father is mechanic, but never done so modern stuff, yapp, 2.5 is space shipengine for hem, specialy the rest of allroad.....all the best in upcoming years, audi should pay you million dollar a year just cause your talking and recording while wrenching

Love your honesty. The Good, The Bad, & the Ugly. Awesome video and company..I hope the designers of these engines watch this.

You, Sir, are a rare thing these days. A genuine mechanic and engineer, who thoughtfully diagnoses issues without simply throwing a parts cannon at fault codes. Fantastic explanation. This not being covered under warranty is disgusting when it is failure by design. When pathetic increases in efficiency are achieved by bad engineering that literally causes a whole car to fail and so costly it is not worth fixing, then the Polar Bears are surely doomed. I'm proud to drive a 25 year old 5.7l V8 LandCruiser that still runs like new, that by virtue of running forever, is actually the true saviour of the Polar Bears, as others will have bought 5+ "eco friendly" new cars in the same lifetime that this has simply drank a bit more fuel. Please tell me what's worse for the planet. An old (relatively) simple engine drinking a few more gallons, or making a whole brand new car from scratch every few years. What a massive con our governments and the big manufacturers are selling us. I'd like to see VW run that famous "if only everything in life was as reliable as a Volkswagen" ad campaign now and see the public reaction.

Outstanding video! Informative and well done. Subscribed for more.

Happy new year to you and your team ,,, another great video again,, glad you are busy, wont be buying one of these cars take care 😁😁

nice to c u back again been missing the videos .

Interesting video! I’m driving an A6 with the same engine. Mine broke down at the crank bearings due to the lack off oil pressure… only 70000 miles

And this is why I now drive a Toyota after several try’s with VW and Audi. To be honoust, my Mercedes C220d wasn’t free of issues as well and a colleague with a Volvo V60 also has many issues. So I’m done sponsoring so called ‘premium’ brands and just bought a new RAV4. Of course, different in every way, shape and form, but so far I absolutely love driving without a care in the world. Great car!

And all this because of exhaust emissions 😂, love you videos.

👍 .You can try in future with diferential preload paste (color) set up the preload without rockers and lifters and play little bit with small torque wrench and find a sweet spot where marks on gears would be nice and even surfices and than preload gears and screw all setup 🤣.Good video keep them comming!

I bought a 2012 A6 fully loaded with the 3.0 TDI for cheap.. it has a 0.5-1 sec startup rattle sometimes, and ill just live with it.. Great winter car, dissapointing to see VAG still only put out 3.0 TDIs with timing chain issues.. but i love watching your videos.

Great job guys 👍

I do my oil changes every 10,000 KM and the oil and filter costs about $120.00 AUD fully synthetic because of the EGR and DPF which is needed to save a dolphin. 20 minutes work gives me peace of mind knowing that I wont have that nightmare happening to me.Australians love Toyotas and thats why.

Very impressive stuff you are doing there and with a very good taste of humor! I am driving the 2019 A6 C8 50Tdi with DDVB engine and I am wondering if that engine has the same issues regarding carbon build up and oil pressure? What's your experience and advice here, it now has 155t kms on the clock and so far had only a faulty NOX sensor! Planning to do the ZF oil exchange every 60tkm after the first done at 120t km.

Brilliant channel ! Subscribed. 2 Things, I am based in South Africa and could have those gears pressed off and cut new and and cams and new gear nitrate hardened for a quarter of the price. Also sometimes one must not over react . Hydraulic lifters are not that serious . I have seen them last 700 000 km ,yes you lose a little performance , but no serious failure issues 😉😉

I've been awaiting your new video. I hope you and Miri had a quiet Christmas and New Year. Keep up the good work. Could you add oil spray nozzles pointing directly onto the cam gears, like they add lower piston spray nozzles on older performance engines?

My Honda element has 350,000 and running great. Regular oil changes every 5k miles with synthetic oil.

Hi, I really enjoy watching your very informative and interesting videos. I think this situation goes back to what you were saying about the tell tale signs of tarnish and staining within the engine and obvious lack of oil changes. diesel oil can degrade and become sludgy if not changed regularly leading to poor circulation which is crucial with this engine design, seemingly relying on oil to gravity seep down and lubricant all the moving parts 😮 with the added problem of lower oil pressure not delivering enough, quickly to the top of the engine.. I watch a video, basically the oil was change 5 times and engine run each time before the oil actually came out of the sump clean😮 apparently he said a person didn't believe the oil was changed when their car was serviced, its because they didn't realise the oil turns black as soon as you start the engine. It would be ridiculous and expensive to flush oil 5 times I would say and engine oil flush addertive with the old oil then mabe 1 extra oil change should be sufficient but it just proves how dirty the internals of an engines can become with higher mileage especially with the lack of oil changes which is Crucial for the longevity of an engine.. Hopes this information helps 😊👍

If you don't need to pass a smog test or emissions inspection, you can have Tunezilla/Malone Tuning do 1. an EGR delete or 2. have the dynamic EGR software flashed on your ECU to avoid some of that carbon buildup.

On smaller Vw cars like 1.6 - 1.9 tdi what would you reckon how often would you change the oil, great video really clear & easy to understand 👍☘️🇮🇪

Nice work. On referencing your own adjustments .🍺

Woah that carbon buildup is insane!

Thanks for this great video on demystifying VAGs engine strategy. After swapping from a A6 4F with no problem at all I am now confronted with metal cuttings in my 2-year old Q7 50TDI mild-Hybrid (DHXA). Would you be able to specifiy your optimized oil pressure specs again so I can use them as well? Kind regards!

Move these V6s on at 80k would be my thought. The chances of just a timing chain swap being all thats required look slim. These V6 /8 engines are really pretty poor from VAG it seems. Good workmanship by you guys as always.

Nice job and great video

Guys, did you ever heard to bring hydrogen into the intake to prvent all that carbon on intake parts? From what I read and saw, the hypdrogen is burning down that carbon completely so that even the particelfilter keeps clean. Maybe this would be the better way to engenieer green engines than with the egr-system. I will try it on my own 3.0 TDI A6. It‘s an ASB engine from 2007. Thanks for that hint with the oilpressure mapping, I will ask my guy who did also the engine mapping on 300hp if he can adjust the oilpressure mapping too. And I let you know the results of the non egr and particelfilter plus intake hydrogen system. Many thanks 🙏 for your awesome work and sharing your knowledge

I have owned several Audis and have overall had amazing experiences, and with good maintenance and awareness they have been reliable. However, the direction they have gone has been a bit disappointing. I don't blame people for being hesitant to own one. Of course I still recommend them over BMW, because in a BMW everything around the engine falls apart, and you might also have problems with the engine. At least with an Audi, the car is good. But even so, I'll probably hold onto my old Audis instead of buying anything new from them. They just seem to have forgotten about the reliability and simplicity that made them famous in the '90s. Also, can't you prime the fuel pump instead of hashing that starter to death?

Bring it on, because i honestly can’t wait 😢😊

Now I know new Audis had troubles with newer engines but seeing this tear down I am totally shocked what the hell are they doing I would never buy one!

Thanks for another explaination on a very strange setup and complicated engine trying to save the planet and polar bears. Awesome work carried out once again! With this complicated german engineering design, it makes me think if ze germans are capable of building Ufos?

Awesome video. Thanks 🙌🙌😊👍👌🙏

Have you ever considered using stanadyne performance formula I. Your fuel? It is a cetane improver which modifies the combustion characteristics of the fuel. Possibly reducing carbon as fuel combusts more completely. Recommended by Volkswagen

Gday fellas I have been a fan of Audis over the years but now I wouldn’t even contemplate these nightmares I feel for you regarding the super manuals intructions

Hey guys! Great video! Which engines are affected of the camshaft problems? Also newer 2020 Audi's? Which would be the best 3.0 tdi engine paired with zf 8 speed? I see that A6 biturbo 313 and 326 has a different setup? How about A4 B9?

I have the same engine on my Q7 and I always change my oils every 2500-4000miles to keep everything fresh and always get the atf oil change too. Next is going to be intake manifold clean

Superb information guys. Is this engine the same on my 2015 A8 3 litre tdi sport executive?

I ve been considering a used 3.0 Audi Q5.... Youve just changed my mind... Scarey

good to see you guys back...I've got a 2016 3.0 tdi 272hp A4 Avant now crapping my pants its on 87k lol

This is the exact issue that I had on my 89.000km A6 allroad 3.0 TDI 2015

Another good video..👍👍

VW/Audi went backwards several years ago, and big time. Been with them for decades, got burnt once on timing chain and put it down to bad luck, burnt second time, questioned it, 3rd car same issue I cursed to the car, 4th time same fault on next new car and cursed myself for being so thick…but I still stick it out . My very first Audi 200T was bullet proof, A8 4.2 similar, W8, R36, S4 b8, A8 tdi, Touareg tdi…I’m a slow learner but never ever again I’m afraid. Went Japanese 4 years ago, and until vag gets its shit together I reckon there’s plenty making the switch

That RS4 B7 looks great tho

Great video and another reason why not to buy an Audi with a 3.0 tdi engine.

Great Video Tom, you will be kept busy by the VW design engineers bad news for the owner's doe😒

Impressive engineering skills! 👍 Do you know if the oil pressure issue also affects newer DEW code 3.0 TDI engines used in B9 S4/ C8 S6+S7?

Great walkthrough. Do you know if the 4.0TT also has this oil pressure mapping, and if so if a re map would be beneficial?

Thanks for the video and good advice,was looking at 2015 audi a6 3.0 tdi,i need your advice,are they same engine?as iam going for a testdrive on friday

Bravo braćo! Pozdrav od vozaca Tesle :)

Hi , a very informative video. I have a 2019 SQ5 TDi , would my engine be subject to the same build issues as you have shown with the Q7 ? I know some parts are different but I would appreciate your thoughts. Peter

Very good job 👏👏 I would like to do the remap to the oil pressure hear in Spain but I don't know anybody who can do that😢

Very talented 👌

Great work guys , just as well the customer has deep pockets , my self will run our A4 tdi until the dinosaur diesel runs out .

Good job again ! I have a question about the crankcase ventilation ... as you know now on the C7 it is built into the head covers and a bit expensive to replace but it is very important with the increased crankcase pressure after a remap or increasing oil pressure like now ... do you have any solution such as putting an extra membrane , external oil trap and etc ?

It's the case Hardening failing on the older cam gears. You can as much oil as you want it will still fail. Ford and Bmw had a similar problem with high pressure fuel pumps breaking up

Fuel dilution from the dpf regenerating will also significantly reduce the viscosity and load bearing ability of the engine oil. Pre dpf 5% fuel dilution was considered time to dump the oil immediately. Whereas now in excess of 10% seems to be acceptable. ZDDP and calcium both a limited to not contaminate the DPF. ZDDP being the sacrificial antiwear additive to protect if the oil film is broken. As well as being a detergent the calcium acts as a strong bearing pacifier, to prorect from sub surface fatigue failures.

An impressive video and, as alway, very informative.👍🏼 I have a 2016 A4 with the 218ps CSWB engine that's just clocked 83k miles with full VAG service history. Am I correct in thinking that the CSWB engine also suffers these same wear issues?