S5 B8 DeCat , how an easy job turned into a NIGHTMARE , Engine started making noises on collection..

Welcome to another video from our garage VAG Technic.
This time we have this Audi S5 B8.5 with a 3.0TFSI Supercharged engine. Originally the owner just wanted a down pipe to fit what he supplied. After a few phone calls he decided to do the PCV, water pump , thermostat and carbon cleaning at the same time. Job was estimated to be two working days but it turned into a 4 days job instead because of this... Not only that , on collection the engine started making a strange noise in front of the owner . So humiliating ...
Thank you for watching
If you want to get in touch with us visit our website
www.vagtechnic.uk

[@killerhun1441]

fair play to them for staying behind late at night, i think not many others would have done it i think it shows us he really cares about his customers :) and for all the things done price was mor than fair

[@oldgit1091]

Nice to have a honest mechanic 👍

[@grzywka7307]

Honest mechanic😂😂😂

[@Kiss__Kiss]

Thank you for your transparency, It's refreshing. Especially during these crappy times the world is going through.

[@Nyx_88888]

this channel is one of the best car repair channel out there

[@clumhain]

for what was done i think the bill is surprisingly fair. Owner will have been told exhaust bolts shear= engine out. I would trust these lads as they have pride in their work and will do the right thing and not cut corners. Would be the place to go for me with an Audi S class.

[@BrockettRocket01]

I have an S5, the price is fair but learning to do it yourself even over a month or more is gonna be half the cost. Key to owning a German car: don’t pay shops to do the work.

[@simpledude70]

Its not humiliating, shit can happen to anyone. what i like about you is that you don't sugarcoat anything, you give us the whole story.

[@Salmon_Rush_Die]

Sounds like a very reasonable price for the amount of parts & labor, and for the quality workmanship, it's absolute bargain.

[@craigsolomon8292]

The green Audis interior looks amazing

[@paulhutchins6019]

Great content as ever. I thought that was cheap considering the amount of work involved with that job. Respect to you guys. 👍🏼

[@senco981]

Comparing to prices here in US, I think yours are very affordable. Not to mention stellar work you provide.

[@7747bruno1]

Really enjoy your honest videos, goes to say if i had a audi i would be more than happy for you guys to work on it...👍👍

[@1000sofusernames]

I go to car meets every week and when i see a 90s or before car it's all so simple in the engine bay. You could literally work on a lot at home. These things need so much specialist gear now.

[@dave6445]

Great work guys! The more I watch how many of these Audi's have the engine removed, the more I know I will NEVER buy one! 🙂

[@floathing1feather1]

2.5 l 5 cylinder is the way

[@BrockettRocket01]

Not as bad as you think lmao. I have a B8.5 S5. Maintain it properly and you won’t have problems.

[@raycollington4310]

Your forte of working on cars of this age and complexity is never going to be easy. Brave of the owner to be waiting to collect his car while you’re screwing it back together. The exhaust modification was very professionally done. All in all , a good job. Thanks for the education and making us aware how deep the water can be on this old Audi stuff. I sold my last Audi 15 years ago. I might get wet now and again but at least I’m not drowning 😂

[@sarcastixx74]

Not trying to tell you guys how to do your job as you clearly know your stuff but hopefully this info helps yourselves and other viewers: The latest revision of that PCV valve with the "AH" at the end of it is only for the B8.5 facelift models (late 2012 onwards I believe). If the original valve had "AC" at the end then the ecu needs flashed with the latest firmware to let the car know about running the slightly reduced pressure through the revised PCV breather system. That car is a 62 plate so should be ok, but there have been instances reported where a few of the really early facelift models came with the original AC revision so it's always best to check. Great work again and for the work involved I think £3k wasn't bad at all as that engine will be good to go for a long time as long as the owner keeps up with frequent oil changes, etc. Resealing the timing chain covers was a smart move as well, it can be done from the top of the engine but it is really awkward due to access. Keep up the good work guys!

[@expofcam]

Great work! I also agree it sounds more pleasant prior to the de-cat 👍

[@jackrichards1703]

Videos are always brilliant

[@AUDIDOIT]

Great job guys. Quality work. The humiliating thing, these things can happen. Main thing is you sorted it. Reason why you guys are one of if not the best, and people travel miles to have their Audi worked on by you. 🙏🏻

[@swav78]

I wish we had Audi specialist like VAG Technik in Australia. I can’t even get a second hand RS5 key fob reprogrammed here. Great work guys.

[@expofcam]

The B6 S4 came out nicely, the white interior goes with the green perfectly. Lots of cool projects going through the shop

[@MrRippinonyou]

That's about $5800 here in Aus i think its more than a fair price considering the sheer amount of work involved plus parts . Not to mention the expertise that you carry working on these Audi's ! Im a mechanic in Australia and worked on quite a few Audi / VW there challenging to say the least . Thankyou for the videos mate !

[@aurimasjablonskas1623]

That's weird that you did not get misfire and lean mixture errors via VCDS during the test ride. I have 3.0 supercharged. I had a failed and leaking outside PCV. My mechanics did a small test run, left for the night with an increased colling system pressure, then made a non-drive test before calling me to come for the car. Everything was fine, but I received engine MIL just 20 minutes after leaving the repair shop. Put my VCDS cable and saw than flaps stuck open and closed. Somehow mechanics messed some vacuum hoses, fixed it and everything went fine. Sometimes happens :) However I suggested to clean and check injectors with a carbon cleaning. My mechanic was very skeptical and conservative about carbon cleaning without ripping the heads apart as there is a risk that some particles will be left and stuck between cylinder and valve for example. So we cleaned and checked injectors only.

[@HANZELVANDERLAAY]

You look like a Norwegian..and sound Finnish... Very tedious work..well done.. We are working on v8 Chevy...happy we have it soo easy..well done brother...from another continent

[@BocaAtractivo82]

the cat delete sounds good. But over time can possibly be annoying-perhaps a resonator delete is decent. That green Audi - STUNNING!Always informative content you share. Thank You

[@Gm-pe4te]

Audi Spa this place is ❤ They come back rejuvenated 😁 Best Audi garage 💯

[@tonedcos]

Love the green machine, looked like it had no orange peel in the paint.

[@mbrylewski]

If only there were more workshops like yours around

[@carsonstage4274]

I definitely think you need a break from these cars - I honestly cannot believe how many hours you work I think I speak for all your subscribers we love your videos Oh and I'm an old dinosaur myself so prefer the Catalytic converter staying on the car sounds great as it is in my opinion Thank you for all your efforts getting these videos out!

[@stephenlight4095]

Great job ,like all jobs though,you never know just how they might end ,love your videos,keep up the great content

[@Nyx_88888]

The green s4 is good to go all around for some many more years now

[@MrNiceGuy94]

I agree with you, it is not the best when customers put pressure on you to get the things done quickly. We also get that quite often as most of the time they are coming from 4 hours away from as and they stay at a hotel whilst their car is being fixed. Unfortunately this is not an easy business to be in and things can't be predicted as a "3 bolt job" can turn into a 3 day job. Well done guys and thumbs up for the attitude! ;)

[@shaundadson8302]

Some great work and also a good example of how things can escalate with older car repairs - especially exhaust parts that have been subject to thousands of heat cycles and corrosion. Be careful posting decat type videos though, as I was reading about an owner who had had a Golf modified similarly and reprogrammed. He was subsequently stopped by the police due to the noise and was nicked, but they also made him say where the car was modified and the firm also got taken to court and fined £5,000!. I believe the story was on one of Ricky's video's from RE Performance, (another great KZbin channel). Keep up the good work.

[@davidstocking1622]

Great stuff Thomas... so glad you talk about the things that can go wrong.. if only everything German made was perfect🙄 I really thought that bill was gonna be million pound😂😂. You are obviously getting older when you can't stand the growlers anymore😂😂

[@riaanmocke3364]

You guys always do amazing job👍👍Well done

[@udig4051]

Hats off to u guys, price, professionalism, and fair. Seems to be really hard to find in oz

[@raysstuffz]

I think these kind of guys (S4 owner) will become your most loyal customers going forward. Everybody makes mistakes once in a while but not everybody would take the blame for it. You handled the situation like a true pro, thanks for the transparency as well as for the video!!🙂 One question: Are the cylinder walls Nikasil coated or just polished aluminium? Thank you guys!!

[@VAGTechnic]

Alusil , polsihed ( Hone )

[@SarmedAmeen]

Thanks a lot for doing these videos for us, by the way, the old dinosaur is looking neat!!!!😘

[@llxROBxll]

i work at a VAG Specialist south of the uk and did this for my mate with a stronic box it was a horrendous job

[@SteveBennet500]

Kudos to audi for making you guys perfect the art of pulling engines from their cars lol

[@shieric123]

the quality of your workmanship is so high, I wish you were in my area in the US lol. you would love the rates mechanics charge here, $300/h+++. I think what you did here might cost me like $7-8k USD here lmao

[@gldgti]

That B6 is so beautiful

[@mobilrz]

Wonderful content. Customers should know that these cars are not straight-forward, especially on UK roads with given our weather, studs rust or shear when you apply force. Do you ever use magnetic induction heaters before tackling exhaust nuts?

[@antonfloor344]

That air filter looks so small, 1 of the greatest VAG engines ever, had the same in my 2010 S4😊 Btw: that huge dent in the new exhaust that can’t be good

[@chrism5433]

A very fair price. Modifying is $ by the hour .

[@neilwharton720]

That old dinosaur looks pretty good,like it💪💪💪

[@peterarries7879]

Brilliant video as always, unfortunate mistake on the supercharger seal but that's garage life. Do you have a merchandise link for t shirts with the V.a.g logo 🤔🤔

[@neilcutler8064]

Love these videos really professional 👍

[@rohandevilliers5997]

If you havent removed any timing components, try cranking the engine, remove ignition fuse and fuel pump fuses first, remember to have a towel over it to catch it dont put your handdirectly over it but it works

[@miceinoz1181]

For the work and time, I reckon 3K is pretty reasonable actually. Hard to have an opinion on the pipes until you sit in the car and drive it (as you mention). Resonations would drive me nuts, especially on a quality vehicle. Was the cat removal only done for the engine note or was there some other issue? How does the vehicle pass an MOT now, do they not do an exhaust quality test? I thought it was illegal to remove them?

[@martinjones849]

Very reasonable for what you have done

[@stevenkerry3101]

nice work love the videos 👍👍👍👍

[@aaronhempy9906]

I did chains on a 15 SQ5 last year engine in, trans out. Bank2 correlation faults. Bank 2 guides broken. Replaced everything using proper tools. Engine code ccud I think? Didn't replace intake adjuster. Car ran fine. Bank 2 timing falt returns. Base timing is spot on. Remove Bank 2 cat and upper timing cover again. Replaced adjuster. Put back together and guess what? Same fault. Recheck base timing, good. Perform compression test with Pico scope. Everything looks good. Swapped timing solenoids, no change. Bank 2 intake cam tone wheel had moved just enough to trick ecu. Engine was in perfect time. Remove Bank 2 cat an timing cover for a 4th time. Remove both valve covers and supercharger. Again 4th time for everything. Removed Bank 2 cam bridge. Replaced Bank 2 intake camshaft. Reinstalled everything. Fault never returned. Welcome to getting your ass handed to you as a tech. 26 years and going. Parts manager is treating me much better. Vag tecnic is top notch.

[@bilaltariq7819]

The cam trigger wheel on the intake cam was out of sync with the cam? Are they not welded together?

[@aaronhempy9906]

​@bilaltariq7819 nope. Everything is hollow cam, press fit lobes and trigger wheel..

[@bilaltariq7819]

@@aaronhempy9906 wow impressive that you found the problem, what a nightmare

[@grahamjohnson3765]

Seems very reasonable price considering 4 days labour !!

[@paulthompson5416]

I personally think the price was fair for the works involved and parts 👍🏼

[@andrewmooreandrewrmoore7615]

How does he pass the Mot emissions test with no cats? Not your fault the stud broke or the downpipe needed welded. The gasket was just one of those things when working to a deadline.

Great videos!!

[@machogy15]

Price is more than fair for that amount of work. It's almost enough to attempt driving across the Atlantic for lol

[@24bellers20]

Great price and excellent work but too loud for me. 😁

[@kassanova5430]

These 3.0 never sound good regardless of the exhaust. Even worse with the cats off where they develop that tin can raspiness but performance wise of course it makes sense. The only B8 that sounded amazing was the 4.2. The 3.0 is just cheaper and easier to to modify for power. Great job as always though guys.

[@jamest5149]

Run a fuel additive regularly (as well as top quality fuel) like RedLine to keep the injectors clean… the active chemical to look out for in an injector / fuel system cleaner is PEA (Polyetheramine)

[@timbo19751975]

Love the hot air intake! :p

[@MariusTrifan-c9p]

Can you please tell us how you removed the injector that was stuck in the cylinder head? I’m dealing with this right now and I would like to hear from you what would be the best approach. It’s on cylinder nr 4. Please and thank you!

[@vega289]

would you recommend changing the supercharger oil at this point?

[@Pixelpeeps-69]

Great video! Is a good practice to always use super unleaded fuel in my car to stop carbon buildup?

[@brizax]

The aftermarket test pipes always sound like crap, gutting the stock cats sound way better 💯 stage 2+ ready!

[@EXOVCDS]

19:13 to 19:16 the PCV / supercharger coupling pipe isn't installed. Or am I blind? Great video as always!

[@VAGTechnic]

It Was on the charger

[@EXOVCDS]

​@VAGTechnic Sorry, my bad. I always put it on the pcv because of the locating tab... I'm worried that it won't sit correctly otherwise. Thanks for replying! Those small hydraulic tables look to be more handy / manouverable than the big AGA Tools table we have.

[@andrewmooreandrewrmoore7615]

Love B4 btw!!

[@lauretiu]

man you make me want to move to uk just for how inexpensive it is to fix the darn audis's at a shop compared to US. here just he pcv would have cost me close to that amount

[@hjaniel4428]

Nice 🎥 man 👍

[@humanresources2138]

Does cleaning the fins on the intercooler, AC condensor and radiator make any noticeable difference?

[@rybackracing8075]

With that amount of work, I don’t think the bill is unreasonable and you clearly worked over and above. Not a criticism of the customer, but if you’re sending your car away for major work you need to be realistic - problems happen and they can delay things. The problem is a lot workshops will sit on cars and customers have to chase things through to wrestle the car back from them!

[@timessix8434]

Nice video! Is there something I can do as an owner to reduce the carbon buildup in the intake ports? Any special driving behaviour, warming up etc? Thanks!

[@Gaspare77]

Why not change the oil in the compressor ?

[@Ben-in6qh]

What about the rocker arms? And cam cover gaskets

[@Tyler_Flynn28]

When do you recommend a good carbon cleaning on our B8/B8.5 3.0 engines ??

[@jakeandtheplot]

Sound was nicer to begin with

[@garethmacklam4655]

Chevron techron fuel system cleaner (a PEA detergent) is the best at removing carbon. Tell customer to do it every 3000 miles. Oh, you make working on these complex engines look easy & hire a student to do your video editing!

[@The_Noticer.]

how do you get DECAT cars to pass inspection, doesn't the UK do exhaust tests?

[@leehartley1667]

Brill mate

[@chrisjames1422]

Might bring my Volvo s80 to have flared arches and a supercharger fitted. Also want a 911 gtr whale tail fitted.

[@vega289]

3000 pounds for ALL that ?!!! In Kansas that's about 8-9 thousand dollars!!!! wow...

[@jackrichards1703]

I have a 2015 185bhp A3....with 8k on clock....Will probably call for engine improvement if possible

[@milan_gt]

👏👏👏👏

[@michaelplevan]

Audi charges $2700 for replacing an N80 valve on my CFSA, which is a $40 item and 45 min work. You guys are working for free, practically. The owner better be happy.

[@robertambrus8578]

Will there be a problem with the emission value at the technical test?

[@94mikyyy]

Hi, is it worth getting a carbon clean with that machine in the shop that they say dont need to disassemble the intake?

[@tonman4000]

Any ideas why these B8.5 3.0T seem to be having cylinder scoring issues and pretty much need an engine replacement? What is causing the score?

[@wurlyone4685]

Sounds better before de-cat, imo. Horribly raspy after. Sounds worse, costs a lot to do, bad for the environment, overall stupid mod for the owner to want to do, imo. The s4 b6 looks mint!

[@mstar011]

the price and labour doing the downpipes isn't worth the hassle? i believe the owner was getting stage 1 done later?

[@sarcastixx74]

That's true, it'll definitely need at least a stage 1 if the cats have been pulled, surprised there was no mention of EML coming on after this work was done! It could safely run stage 2 with a single pulley MRC Tuning package. Difference in price between the stage 1 and 2 packages make it a no brainer to go straight to stage 2 on these. Would need extra cooling mods if going stage 2+ with dual pulleys though.

[@mstar011]

@@sarcastixx74 hey it will be good to see how it works!! btw we met outside i had my Allroad! 😀

[@sarcastixx74]

@@mstar011 We met outside? Sorry if we did, I really can't remember!

[@Mfull-l4r]

👍👍👍👍

[@Mykytys]

It is unfathomable to look at the carbon build-up of these engines and their susceptibility to failure. I drive a 20 year old A8 with a 4.2 liter V8 that is not direct injection. 285,000 kilometers doesn't eat oil and the car works, without any fault notifications (yes, air suspension works great), maybe I'm lucky or cars were made very well at that time.

[@t._._._.]

Why would anyone faff around with removing the cats? Stock is the way forward.

[@Pwnulolumad]

9:40 why not piston soak? "nothing we can do"

[@boerieza]

Finally! I de-cat video on a supercharged V6T......WE FEEL YOUR PAIN! One of the most hated jobs ever, but you've cheated and dropped the engine. Boooo! lol *jk* I have found a great solution for people who have fitted cat-less downpipes and want to get rid of the exhaust rasp. Reply to me if you need that info. It took AGES to get the setup right. 3000 pounds is a bargain for the work done and parts delivered. In New Zealand, the shops would ask 1500 pounds IN LABOUR alone to install the downpipes.

[@mittu8914]

What is the best set up mate

[@barriem5318]

Audi please bring the Avant back to USA

[@Rob-wx2rq]

3000 for Audi repair including engine out job? That is a very reasonable price!

[@mbrylewski]

What is a ceramic coating?

[@Salmon_Rush_Die]

It's like wax -- for the paint -- but harder & more durable. A high quality ceramic _can_ last several years.

[@southafrican00gaugeunitedk14]

Hey , I have a 2009 a4 2.0 tfsi , and now not doing anything to it apart service , have the idea of an A7 3.0 tfsi or S4 , but I am really put off by these engines , seem complicated and delicate ! Anything to look if I were to buy one ?

[@rkan2]

Full engine rebuild before stepping on the gas if it has more than 10000 miles 😂

[@sikanderhussain308]

100,000 miles needs roughly 3k to 6 k​@@rkan2

[@plugman1963]

Where does the owner stand when it comes to the MOT? Wont it fail on emissions with no cats?

[@williar1961]

Yes it would fail a proper mot. Mot station owner here

[@dadyo63]

Nice work 😊