RS4 with broken spark plug has much worse damage than we thought, Worth repairing or sell as it is?

[@Pjai1984]

This is like a horror movie channel for RS4 owners..

[@vanhanliiton7232]

Thats what you get whit Volkswagens 😎

[@isaachunt5799]

@@vanhanliiton7232 yep pos rust bucket junk cars. i see a 2013 passat the other day more rust than metal.

[@GRfourfun]

It’s not just the knowledge I love about this channel but how you are constantly trying to help the customer too. Looking forward to the next video already, thank you for the content.

[@shelbymccaul6505]

This is one of my favorite channels! I love your work and dedication to Audi. Best way to spend my evenings winding down. I’d love to see some old 2.7T content. C5 RS6 was fantastic! Loving this RS4 series, too.

[@chrispy104k]

4:30 - Hahaha... "heavy metal concert going on". I love the wry sense of humour. Keep up the great work in explaining what is going on. Love the videos guys. Really informative.

[@dubblesix66]

Best channel on KZbin. I'm going to bring you my B7 S4 just for the entertainment 😂👍

[@paddyoconnell9557]

I love that blue b7 rs4 in background 👍👍👍

[@markofalltrades9229]

These are great videos, really interesting. I know very little about engines but enjoy your methodical approach to working out the issue. Thanks for sharing.

[@1brokenspoke189]

Cylinder head is repairable as long as it passes a pressure test before any machining is done ,new valve seats ,new valve guides on that cylinder ,new valves and a spark plug helicoil . dont worry about the bruising in the combustion chamber as its only cosmetic . wear in the valve guides can put a sideways load on the spring and cause it to fail

[@cabottaxi]

Brilliant content . Great watching you guys putting this all together.

[@Divinebelf]

Malice in the combustionpalace!!

[@colchronic]

I see you are a man of culture

[@jay-cee4499]

@@colchronicindeed he is

[@MyHomeGarage]

Ron Ron went to work on there. Hella damage.

[@davym44]

No better team to repair the car !! Perfectionist’s 👌👌

[@VitesseEFI]

As others have already commented - it is not a good reflection on Audi that these engines seem to fail in serious ways at quite low mileages, reasonably often. IMO, the valve spring is the root cause. That is why as mentioned early in the first episode, the vehicle ran sick for a while before the valve dropped completely. and stopped it. Audi used to be able to build a durable engine. I have a C4 A6 with the 5 cylinder TDI currently on 352k, never been opened and still going fine. The 5 pot petrol turbos in the early S cars can do big mileages too, as can the older 32V V8s.

[@VAGTechnic]

I’m in touch with people from Germany , Poland , US , Canada , repairing all sort of cars and it does looks like Audi are shajt 😀 we don’t work on anything else . But these other mechanic friends are sending me all sort of pictures with AMG , M car , GTRs with funny issues . Just no one is posting it on KZbin

[@Swemist]

​@@VAGTechnicOfc Bmw and MB also have similar problems but their owners have a tendency to "forget" it.

[@StaticVapour590]

If someone does not make videos about failures/repairs on certain brands or models, it does not mean that they are problem free. As a mechanic I have seen all kind of brands with serious engine problems, even blown up Civic, if you think those are unbreakable

[@JeremyWilliams-tz4xt]

If I had only 1/10 of your mechanical knowledge I'd die a happy man!

[@scottkarlins]

Outstanding content guys!! The love/ hate relationship with these automobiles and engines continues! As a 2005 S4 Avant owner, I wish I had you over here in the USA. You would be my go-to shop!

[@bokiNYC]

Same 👍

[@karlwagner932]

First we want to thank you for the solid videos! Secondly : it is important to know about the year of production and how many miles are on the clock! Please start your videos always with these data! It would be very helpful for old and future AUDI owners! Thank you in advance, stay healthy and protected!

[@VAGTechnic]

In first video allminformatiom Was given

[@JorgeLopez-qb5ts]

Hello VAG Technic, I hope this message finds you well. I am a fan of your videos from Chile, and I particularly appreciate the detailed content on repairing RS4 B8 models. I own an RS4 B8 myself and have been inspired to perform some repairs following your tutorials. I am reaching out to kindly ask if you could share information on where you source the various parts used in your videos. I am interested in attempting some repairs on my RS4, and having access to the same quality parts would be immensely helpful. If you could provide details or recommendations on reliable suppliers, I would be very grateful. Your videos have been a tremendous resource for DIY enthusiasts like me, and I'm considering taking on more tasks independently. If it becomes a bit overwhelming to hire professional assistance, having access to the right parts is crucial. Thank you for your time and for sharing your expertise through your videos. I greatly appreciate the valuable content you create.

[@kebabsaurusrex1601]

B7 RS4 owner - never given me any problems, thankfully. Never modded, full service history. Too many people chase horsepower.

[@tonyc2837]

I seriously didn’t expect that cylinder head to be anything other than scrap. How can it be repaired without effecting the compression in that cylinder.

[@Johnny16781]

Top job again, looking forward to results

[@thomaspeterson8969]

I've watched every one of your videos, and every time an rs2-3 comes into my garage, I know what to look for and how much to tell the customer 😂.

[@peterarries7879]

Great content as always from you guy's, looking forward to the next one 👍🏻

[@ZakKol69]

When I was working in the dealer, some stupid tech was revving a customers car to redline for “fun” in the workshop. And this exact thing happens to an rs5. Cylinder 5 valve spring snapped. Also seen it on a few rs6’s too. Always cylinder 5

[@jimmerritt2860]

Brilliant video as always. Looking forward to the next one 😎😎

[@jtb52]

If you could find a Passat estate with W12 engine that would be cool...I see them pretty much only in Germany...make a great sleeper

[@VAGTechnic]

W engine are a bit dead 🥲 drove W8 and was expecting more

[@parbjotkhela3072]

Unfortunate but hopefully the rs4 can be brought back to former glory

[@jstewlly4747]

I have seen plenty videos and forums where on the b8 rs4/5 its always a broke spring or broke rod in the engine like is that common smh i know 450 hp 4.2l but damn audis V10 can go 100k easily smh I STILL WANT A RS5 The con rods are skinny i aint gone lie 8500 rpm doesnt mean cut cost smh

[@adriandeeth5456]

The heads can be laser welded.. Using a pulsed laser or even a pulsed tig. Low heat involved to keep the alloy hardness. The other thing.. Maybe invest in a cheap 100w laser cleaner.. removes almost everything very fast in the cleaning process

[@Alan4917]

Great to watch guys!

[@X055_s5]

@6:36 mark, what causes the catalytic converters to go like that? failed pcv and oil getting to the exhaust over the course of time? or is it just general wear?

[@miceinoz1181]

Always interesting, these Audi's.

[@kevinmortimer1883]

amazing work Gents. But the question that should be asked is why Audi charge the earth for cars that are built to the cheapest possible price with the cheapest most unsuitable materials and parts.

[@VAGTechnic]

It’s not cheap , just somebody didn’t done the homework properly for the rocker arms . Pin size is not correct for the rpm

[@lutha1720]

With purchase price and repair cost this is still a significant savings. Now the owner can sell for a profit

[@stevenkerry3101]

great work you guys you defiantly know your stuff 👍👍

[@loukasnicolaou6341]

Great educational video🎉

[@PerSöderlund-o7o]

Please guys, start using external mics! Love the channel❤

[@michaelbolton1090]

Seems like maybe the engine was over revved and floated the valves. If that machine shop can fix that head then you have an absolute wizard of a machinist.

[@MrRubenoz]

There shouldn't be a thing called overreved annymore since whe all got limiters. Maybe with a cold engine? And then Rev it... would make sense

[@RATADATUAVELHA]

I love how easy it seems when you disassemble it 😂 one question: why these engines are so weak? so many problems...timing chain...valves...gaskets...cog wheels... 🤯

[@VAGTechnic]

Seems like it! because we work only and only on these kind of jobs . I have Audi and VW my self and for years I’m only doing basic service and changing parts what are tear and wear

[@colchronic]

I've seen enough of I do cars videos to know that when a spark plug comes out looking like that the entire engine is going to be scrap😂

[@likhwadube5937]

75% of the engine is reusable. So not the entire engine.

[@raycollington4310]

The thought of a broken valve spring causing all that damage is scary. I think there is a question for Audi about their quality. I owned two and would never go there again. That said, this looks like a fascinating repair job, the only issue being for the owner to have the available money to fix it. I do feel for you when you're having to negotiate with the owner to get the funds to proceed. I think there is an experience and wisdom element of running a car of this age and complexity. Good job you can't teach wisdom. I'm sure the owner will get a good job. I'll be interested in that cylinder head repairability. It looks Goodnight Vienna to me. Thank you.

[@jondiaz3475]

I think anyone buying a UKP 10k RS4 knows exactly what they are getting, and has already planned for it. I would hope so, anyway.

[@einfelder8262]

Breaking a valve spring in any car can result in catastrophic damage, unless you have an old side valve engine.... Audi does not manufacture the valve springs, so questioning Audi quality because one breaks is childish. You will have noted that the owner of this car did not bother with maintenance either, that engine was filthy inside. He also didn't seem to use the required premium fuel judging by the state of the combustion chambers. I'm not saying the lack of oil change broke the spring, but tracking the car and revving till valve bounce on dirty oil might have contributed.

[@jdmimportlogistics]

I have an 87' 4Kq CS and a 93' UrS4. Definitely think about the RS4 and R8's both V8 & V10 but if you can't build the engine and tear apart the gearbox yourself it just seems like you're asking for trouble.

[@raycollington4310]

@@einfelder8262 There is plenty of evidence that German car quality uses some cheap parts. The new CEO of Volkswagen has admitted this and said he intends to improve quality under his watch. You are clearly an Audi fan and I did not want to upset you. I know the factory in Hungary that produces all these engines. It is very impressive at how it produces cars. I owned two new Audis, the last one was a 2006 build. I had so many problems with it, it had to go. All this was within warranty but is was the hassle factor. Nobody will listen to an old fool like me. I used to rebuild engines for a living and I would love to see the quality pendulum swing a bit towards some quality parts, especially in key component areas. Chain guides made from old Yoghurt pots can't be right. It seems to me that the Americans taught the Germans how to build in obsolescence. Strip a 20 year old Porsche engine and just look at the timing chain and associated part quality.

[@alanhanniffy8177]

Massively insightful channel, I love it, great content !😀🇮🇪

[@thezuli123]

Great video Guys as always! What's your opinion about 4.0 twin turbo from S6/RS6? Have you seen many of these in your workshop?

[@VAGTechnic]

Juice out cars … so many are just in sad condition because of poor previous maintenance

[@chiefrocka8604]

Bradford taxi ran on a shoe string mainly cat S but some are cat n and only got repaired chassis and wheel cracks welded

[@Icarus410a]

I still want to know what was the fault in the SQ5 rebuilt a month ago at huge expense, and still not fixed. Great job as always.👍

[@VAGTechnic]

It will be on KZbin don’t worry

[@Icarus410a]

@@VAGTechnic 👍

[@boerieza]

I guess it depends on what the owner paid for the car, but I think it's going to end up costing him as much as what a decent, running model would have cost him. All that rust though - that is concerning.

[@chiefrocka8604]

These are about 30k , this car was 10k , a working engine is £9000 Ono , in my opinion repairing a damaged engine is very dangerous as if it goes wrong once you’ve spent £6000 on it you’ll wish you offered £8000 for a perfect engine running . Thing is if one valve spring can damage what’s to say it won’t happen again ? Either way with a secondhand motor I’d expect this car to be £22k running if this garage charges around £3000-£3500 to replace

[@zeljko2611]

Helo grom Croatia...love your Chanel

[@ianwarriner8193]

Brilliant as usual , once more you have you have convinced me , dont buy an Audi v8 😂

[@harryquinn8911]

The valve dropped which means there was a heavy metal concert going on😂😂😂brilliant

[@lavina58]

Happy owner😊💯

[@gingerdude94]

I like these multi part episodes

[@andrewcoombes3063]

I miss read that comment as multi part explosions!

[@Haider_Malik]

Fantastic insight thank you 👍🏽

[@abitdazed]

K, so my guess at the start is that the valve is buried in the piston itself and that's what's stopping it turning a full 360

[@abitdazed]

I was so close. It was buried alright, though lol

[@Carrera-gp9od]

I was looking at a rs4 at the weekend , this has scared the shit out of me 😵

[@colinboyd4371]

love this channel

[@nandor690]

Are these the same RS 4 engines that came in the B7 2007 and 2008 USA cars? Or is there differences between the USA engines and the European 4.2 engines?

[@VAGTechnic]

Same Yes

[@stevealan2289]

Car was over revved. Somebody drove it like it was a racecar lmfao. I'd love to fix that, looks like a fun job.

[@Evoniky]

I have a question. I'm overhauling my engine and need oversized pistons for the CFSA. Which pistons do you use in such a case?

[@VAGTechnic]

Why oversize ?

[@Evoniky]

@@VAGTechnic I have a deep scratch in the cylinder bore and the others don't look so good anymore either. The walls are too thin to press in engine liners

[@nickmitton7350]

I still can't believe that a car as expensive as that Audi with that sort of milage on it, can fail as badly as that!! You certainly need deep pockets to own one of those beasts!!!😢😢😢😢

[@VAGTechnic]

Special cars used to be for special people in the old days . New era people who can kick in a balloon can buy any cars and unfortunately the first years they have hard life and no maintenance = result is obvious

[@jezrougan]

Heavy metal concert... Had me in stitches when he said that 😂...😅...😂...😅

[@lifeslooker]

Ouch!!! Can't buy a champagne car and service it with beer money...having said that, the pistons can be replaced, the block will be fine, unless it's proper broken, but you can weld your magic on this one...get it??? LOL...anyway, where is the rest of the spark plug? In the piston? Cylinder head I reckon is repairable...but labour time will be costly and also the part is costly...needs new valve springs definitely....carbon is cleanable, but the main guts of it is damaged, so, depending on budget, can this be done economically...looking forward to part 3 of this

[@c.d.m.3821]

In general, can anyone comment on b8/8.5 rs 4/5 reliability? Looking at rs5’s but i keep going back to bmw m3’s as i know those v8 are surprisingly reliable

[@VAGTechnic]

Till a point bottom end let go 💁‍♂️ always a risk with these used cars

[@flyingfox7252]

Can’t wait I’m watching

[@Why_not_not]

What is the service history on this car?

[@johncowie3092]

Is all that carbon poor quality fuel also are these failures due to poor maintenance lack of oil change what’s the common factor please

[@kebabsaurusrex1601]

Known issue with that car. Have to run on 97 or 99 RON preferably. Carbon build up is worse if you don't boot it and drive like a granny, allegedly.

[@vanhanliiton7232]

They are just dogshit cars

[@jeremybeck7244]

Well... Parts car at least 👍

[@theinstallerguy786]

Was definitely ragged about, that’s why it broke! Drive it like you stole it……lol😂

[@cdodsworth]

nice b7b rs4 in the background

[@VAGTechnic]

Use to be … in bits now 😀 video will be on KZbin

[@cdodsworth]

@@VAGTechnic I have the same model in the same sprint blue hope it’s not too bad ! Will keep an eye out for it on your next video Love your work guys

[@James-pyon]

So all this damage was caused by a spark plug failure?

[@VAGTechnic]

No , valve dropped down

[@hwntwww]

get your welding gear out and add a bit of metal, then grind it to shape- easy

[@amoni1959]

Ouch. 😢

[@C3c1l]

Sramota za Audi nakon 60k km.. sretno vlasniku 😅

[@Rol1Co]

Wow, realy damaged head and piston, if it was my car i would do 8 liners with new pistons, in the end a better engine.

[@8wupi8]

if anyone can fix it, it's only you guys!

[@johnmitchell8925]

Why would 1 spark plug cause the engine nor to run at all

[@VAGTechnic]

Because the valve dropped down and damage the plug

[@DaleSteel]

Where are you guys based?

[@VAGTechnic]

West midlands

[@andyparsley3744]

Don't think i will be buying an Audi anytime soon they seem very problematic will stick to my slightly problematic BMW.

[@BistroGlicerin3]

All forged new parts and stage 3 on it... 🤘💀🤙

[@VAGTechnic]

stage 3 N/A from 444bhp to 465bhp :D

[@gixerboyuk]

Nah.....supercharge it! 😊

[@tomedian]

that cyclinder would be as good as new...in India...send it to the experts

[@VAGTechnic]

Any contact please ? 😀

[@JP_RS6]

This is gonna give me sleepless nights with my 71k RS4... Lol

[@vanhanliiton7232]

Just sell it and buy mercedes

[@JP_RS6]

@@vanhanliiton7232 nah I'm good, I sold it and got an RS6 instead.

[@vanhanliiton7232]

@@JP_RS6 same garbage from vw

[@JP_RS6]

@@vanhanliiton7232 and your telling me to buy a mercedes.... I'd rather buy a BMW. Clearly you've never been in one so wouldn't know and that's ok. Hope you feel better giving people crap on the internet. Bellend.

[@vanhanliiton7232]

@@JP_RS6 if you want To sleep good buy mercedes if you want To be repairing all the time and worrying go on buy these volkswagens

[@tam1381]

Good chance it was over revving that was the cause.

[@VAGTechnic]

Hard to say , but not first time it happened 😪 it’s hard to track the history of the car’s specially when you 3-4th owner

[@TeamAtterz]

Only logical thing to do is put a big turbo diesel in it to upgrade it.

[@VAGTechnic]

TDI these days are the worst option you can go for

[@TeamAtterz]

@@VAGTechnic Tesla swap it is! :D

[@TeamAtterz]

Love the videos by the way guys, if I ever have chain issues with my 3.0TDI I'll bring it your way!@@VAGTechnic

[@gunnar6726]

Am I the only one hearing that smoke alarm chirp or am I going insane

[@johncowie3092]

So apart from Audi engines being shit! Why would a spark plug explode like that?

[@ArcofZen]

Parts car? Doesn’t seem viable at this point to keep going.

[@ArcofZen]

Btw, I’m thinking of selling my B7 S4 and getting a newer B8 S4 so I can have more performance options - remap etc. What’s your thoughts?

[@Bet-vx3fg]

blue boxes everywhere

[@VAGTechnic]

Somebody just left them …

[@johnmitchell8925]

Could have do without all the noise

[@hwntwww]

its only aluminium

[@plokijij7856]

Scrap!

[@VAGTechnic]

keep bringing the positive energy :D

[@plokijij7856]

@@VAGTechnicthat’s all I had at 3:00am in my part of the world 🥱

[@Jake-2011-]

Money pit

[@chrism5433]

Possibly bad injector 🤔🍺

[@johnmitchell8925]

Why do you guys and others have to pull these engines for even small stuff 😅😅

[@paulbarber1960]

Scrap it

[@colchronic]

Get a good used engine

[@manxman8008]

They look great, the cars, but very poor engineering. Likely intentional built-in obselesence

[@markthurston601]

These Audi's are crap

[@MrTopgolfer1]

Great content , as per usual, it makes you think, no such thing as a cheap RS, obviously current owner knew the risks when he bought it, but as I’d like a B7 version at some point, it pays to pay the money on a well loved one, as any major engine issue, any saving on purchase price is wiped out instantly, love your work ethic 🫶👍