Two ''mechanics'' , two RS4's B8, few issues and expensive repairs ! RS4 4.2FSI with 50.000 miles

Hi all! Welcome back to another video where we have two RS4's on the ramps at the same time. Both had very similar mileage (50.000 miles ) . Silver RS4 comes in the beginning just for injector replacement and after a short diagnostic it turns out it's a big job ! Grey RS4 suffered overheating issues, which seems to be an easy job , but it turns out somebody who worked on the car before damaged bolts and it needed more work than we thought. And this is how it was done ...................................
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Thank you for watching !

[@mikeirish8742]

I’m the owner this gray rs4 and I personally recommend these guys 💯 only bring my car to high performance specialist thanks great job 👌

[@VAGTechnic]

Thank you ! It was fun working on it 🫡

[@alvisedamosto6790]

Hi Mike, what exhaust system did you fit to it? Thanks a lot!

[@mikeirish8742]

@@alvisedamosto6790 it’s standard as far as I know

[@TheFranszo]

These pair repairs just elevated the videos to another level! better than any reality shows now! brilliant work , keep it up bois!

[@LWRC]

It is so refreshing to see mechanics who do their job professionally and take no short cuts. The broken security clips for the coolant lines were identified and will be replaced. The factory had those there for a reason. Great work guys!!!

[@thewolf7119]

The knowledge shared from this channel is priceless and greatly appreciated!

[@carllynch8798]

Love the RS4 😊had the B5 RS4 for 15 years ! Miss that car a lot

[@gingerdude94]

I was never sure if i wanted a fast Audi until I watched this channel, now I am sure I don't want one. Still though I absolutely love this channel, you guys seem so genuine, it makes for compelling viewing.

[@panfistach9618]

Why??? Cheap service works in brilliant V8s. RS4 B8 is a perfect choice for funcar

[@riccccccardo]

Agreed dp love the guys and channel hate Audis now 👏🏾😅

[@izdakilla]

Then definitely don't look at any V8 BMW's lol that Audi 4.2 is 1000x more reliable

[@Rol1Co]

Great! More cars for me too choose 😂

[@MiguelGonzalez-uq3by]

Lol dude u must’ve not heard of the rs3

[@islanderITA]

Great workmanship guys, as always! I’m the owner of a B8 RS4 and these kind of videos make me hypersensitive to every little sound the car makes when I’m behind the steering wheel! 😅

[@BenDeSwert666]

Oh yea, it's all fun and games until your engine has to come out thanks to one dodgy injector 😂

[@izdakilla]

Damn being in the states I didn't even realize that's what this gen RS4 was, I always figured maybe different supercharger/pulley setup, glad to see that glorious 4.2 got to live a bit longer! My B7 S4 still puts a smile on my face every time I drive it, can't even imagine what that engines big brother feels like. Thanks for another solid video you guys are fucking amazing

[@danielmarshall4587]

NO Gentlemen, you BOTH have BIG RESPECT. Lovely video and great to see these two cars having some great care and attention spent on them, all the best to you both thank you.

[@billyboy3053]

Worth covering the car wings and the bumper with some soft material before start working in the engine bay, it will prevent lots of scratches while leaning again them and I’m sure the customers will appreciate it, other than that great work guys 👌

[@glencameron5454]

I’ve got mine at Audi getting thermostat and water pump replaced right now! At 79k km. Guys, wish you were in Australia. Need to keep mine going for another 10 years. Very insightful for me to see how the pros do it. Sincere thanks. BTW - This is the first time I’ve heard another one doing the wucka wucka wucka sound when cold start routine has finished. Glad to understand that’s normal. Can anyone explain this sound? Never get sick of the downshifts 😀

[@jstewlly4747]

Love these Audi videos especially the 4.2l episodes i have a 3.2l v6 love that car and im wanting an RS5 so this helps me realize i still need that car!!!! That engine

[@mastalee1776]

I have a b8.5 s5. I really want the rs5

[@jstewlly4747]

@@mastalee1776 lets go for it bro we get em by end of year.......

[@jameschong117]

This channel absolutely changed my mind- i was going to buy an rs5 sportback…

[@brentgoldsmith4048]

The fact that you let your dog lay where it may and worked around it... amazing work guys.

[@scalemodelingltd]

Thanks for the video guys, I own a B8 RS4 same as these. Iam a tech also working in a independent garage. I may have to change some if these parts before they fail and cause further issues. Great cars but you need deep pockets. 👍

[@mastalee1776]

At least u can do this yourself. Save yourself a few bucks

[@scalemodelingltd]

Yeah definitely 👍

[@devilslotz2798]

Carbon cleaning isnt a quick job, I did a mini cooper s last week, only 4 cylinders and took 2 hours, engine still in and intakes near the bulkhead 😫, top work as usual guys, nice to see the big engine jobs behind the scenes 👍

[@AlisterRobbie]

Love that you've got two Avants side by side

[@markoverton5858]

I own a 2014 avant rs4, just over 30,000 miles now it was a demo car and delimited by Audi at the factory by the men who nows best 👍it has had a 25,000 mile service at a main dealer and will soon be in for a full trans engine service, a bit early but I run it on 99 top fuel and it has pushed over 190 mph, it’s starts with the usual noise then backs down from the 1200 rpm to idle to a sweet burble, the gear changes at full on are so slick it’s awesome when changing down,that plip is pure music , the only fault it’s had is the thermostat and the hose on the front strut that needed a pump up those two jobs cost at main dealer £1200 the service including new plugs was £800 that’s not bad for 4 plus’s years of fun and a 56 day driving ban 🤪, I have had the pleasure of driving several amg cars even with upgraded performance, the only problem with them you can’t stomp the go peddle and keep them straight, if you want to go from A toB fast in the U.K. with loads of space behind you this is the beast to own, the torque vectoring leaves more powerful cars curbing themselves trying to follower it, it’s all achieved without turbines blowers etc that I know shortens the life on any engine, stay on top of the oil changes and it will serve you well, it’s classic engineering that puts the twat hat on anyone head 👍

[@jakub86422]

Chlapi, mega job, práve som dopozeral toto video po slovensky a nechápem jak to dávate duplicitne v dvoch jazykoch🤯👏🏻👊🏻

[@nicholascramer4523]

It's brilliant you're posting again. I really enjoy this channel and I don't even own a VAG car.

[@scott2495]

Loving the dog chilling like a boss 🐶😎

[@GRfourfun]

Love this channel, your skill and knowledge are second to none. Also thank you Audi for making such unreliable performance cars so it allows us to see content like this and it keeps so many specialists like this in business.

[@matthewpokora336]

Not only are these videos really interesting but man, your music choice in on point!!

[@TyinAlaska]

I think your channel is going to blow up, especially if you do a few builds. I would LOVE to see you build a few cars.

[@dev_taco]

I must be insane cause I see how difficult it is to work on these but I still want one anyway lol.

[@lifeslooker]

as always, amazing insight and footage...can't wait to collect my car from you guys and hope there has been some footage taken of the issues and the results ( and also, one of you driving it hard under load and telling me how it feels after the work has been done )...

[@rs4jolib717]

im from Ireland as well and would love to bring it to you on my next major service!

[@Tay_James]

Great video! Definitely worth flow testing the new injectors before installing. There have been an alarming number of dodgy injectors going around lately killing these engines.

[@JorgeLopez-qb5ts]

I love this channel I follow all the RS4 B8 videos, I have one and it tells me to see things related to this model

[@timothyfindlay6253]

Loving the new side-by-side format!

[@VAGTechnic]

If we have the chance 🫠

[@dan2fast4you21]

One of the best sounding rs’s, unfortunately the engine is a bit problematic unless forged, mine is currently awaiting the delivery of a forged engine.

[@imranmughal6336]

Isn’t the B8 RS4 engine already forged from factory? And what problems are these you speak of?

[@dan2fast4you21]

@@imranmughal6336 No it is not forged. The pistons are aluminium and are a bit of a weakness. The elephant in the room are the cylinder walls that are aluminium like the rest of the block, and eventually deform and cause oil consumption that these engines are known for and later on introduce piston wobble and this puts more load on the pistons and con rods. So as part of a upgrade cylinder sleeves are a must, along with better valves that in my case snapped and forged components like con rods.

[@imranmughal6336]

@@dan2fast4you21 Are you talking about the NA 4.2 v8? Is there a preventive measure one can take to avoid this? Surely if you’re using the correct viscosity of oil and doing your general maintenance when due there shouldn’t be an issue? Or is this engine just a ticking time bomb?

[@imranmughal6336]

@VAG technic what’s your take on this?

[@dan2fast4you21]

@@imranmughal6336 The engine is a great engine but it can be a bit of a roll of a dice. Yo see high millage ones out there, but you never know how hard they were driven up to that point. But as mentioned from my experience the engine block definitely misses cylinder sleeves, as this really has a cascade effect on many other components as mentioned before. On mine personally the intake valve of cylinder 5 snapped at 80.000km oil services were always done in time, but nevertheless I did notice a gradual increase in oil consumption especially on those sunday spirited drives, possibly adding 250ml for every 2 days of hard driving. What I’m telling you is what I have heard from engine builders that do perform overhauls on these 4.2 rs engines and see them on a weekly basis. I’m going to be receiving my new engine soon from them. Hopefully by xmas it will all be in and I would of performed the break in and will be able to share my 100-200 times and comment on stuff like oil consumption and so on. Prior to the engine blowing up my best time was 10.09 seconds for the 100-200 run with winter tyres and 100 octane fuel. stock is 11.66s on winter tyres on 95 fuel.

[@Graveltongue]

Love your videos gentlemen. Charming, informative and honest, thank you. I’m about to get my license back after 3 years off because of a brain tumour. All fixed now. I was looking at an S5 B8.5 2015. About 50k on the clock. Anything I need to worry about? Thanks in advance.

[@danijelcar5184]

Nice cars u have there I drive Audi A6 Avant 2.0 Tdi 2014 i like it alot,before i have Audi A6 2006 2.7 tdi ....great cars .Greetings from Croatia!

[@alexsterjovki5950]

Enjoy time off much needed You guys are doing great job THANK YOU!!!!

[@dakavanagh]

I love the shape of those RS4 Avants!

[@mikevallier5723]

Hey guys, love the channel, especially as a new-to-me '19 S5 Sportback owner. Aside from my concern about how many of these cars need engine-out work and rocker replacements, I had a question about a tweeting noise I hear when I'm on throttle in my car. Is this expected, or are there any known issues with these cars that produce this tweeting noise when pushing the car a little bit? Currently at 42K miles, bone stock premium plus with sport package (sport diff, red calipers, etc). Please keep the videos coming. Thanks in advance.

[@konstantinmoraglis5300]

Nice video, really enjoying to watch those cominv apart. The cars looks awesome. I am lucky to own one of those in black, previous owner had the cats done, so piece of mine for me, at least on that side . Many thanks

[@robertficek7586]

8:56 i see the "hot wrench" came out, a must tool

[@VAGTechnic]

Otherwise can’t be done 😂

[@JamesStevens013]

good luck miroslav!

[@mikeb9234]

I swear. These newer S and RS models make the reliability of the bi-turbo V6 from the B5 S4 look like childs play.

[@veronikasvajdova]

I like the dog the most 😍😍

[@davesmith4804]

X 2 ....I was never sure if I wanted a fast Audi until I watched this channel, now I am sure I don't want one. : )

[@riskybisness]

Takes me 3-5 hours to have engine and box on a trolley in these. But with how damn good the EA888.3/4 is, just grab an S3

[@davesmith4804]

@@riskybisness very little miles on the clock for a big engine yet all them problems

[@riskybisness]

@@davesmith4804 one problem. Ignored and cascaded. Ignoring an issue on a high output engine is plain stupidity or ignorance. A 400hp engine is not like the average 130hp runabout.

[@jonathanhirst4427]

Great to see again 👍

[@jerryx2000]

Hi would you say a well maintained, low km RS4 B5 is of higher build quality & has less problems than the B7 & B8?

[@iVitaliy1]

Wish this shop was located in usa

[@Bouloama]

Yeah boys, keep it coming. Great content. Liked the video!

[@daveroberts3063]

You two guys are master's

[@royalblood2405]

really great content, truly look forward to your videos

[@onewheelnut]

Another great informative video, you guys work well together. Love SHOP DOG a bit of a moving chicane under foot. How does shop dog get on with the cats 🐈 🤣

[@VAGTechnic]

What cats ? 😂

[@luomoalto]

He thinks they’re delicious 😂

[@jonathanfenton]

Cant wait to see what goes wrong with the 3ltr TDI!

[@tomthompson7400]

gods these things can get expensive ,, fast . is there a quick audi estate that is reliable and wont break the bank to own ?

[@Truthteller886]

I need to drop of my b7 rs4… would love you guys to service it

[@pr1sm55]

B8 is timeless.. absolutely timeless!

[@peterarries7879]

Excellent work lads 👏👏 enjoy your well deserved holiday

[@jameslovering9158]

This channel has put me off buying an Audi.....

[@derickcole3128]

LEGENDS keep up the good work!!!

[@cobzarugheorghe8386]

Hi guys ,I really appreciate your videos and lots to learn from ,I'm actually looking to buy an A6 quattro avant C8 2018-2020 and I'm looking on diesel ones but I'm open to petrol aswell, what is your best choice engine for an A6 quattro C8 2018-2020 ,that's my price range ,thank you

[@nicksempson2522]

Solid work guys!

[@philtsang2818]

Where are these boys? Been waiting for some new uploads.........still waiting

[@VAGTechnic]

Still at work 😂 just finished golf R32 … videos soon

[@chrisjones8979]

, as always great content and tec talk 👍

[@armandovega4597]

I really love this video. As an owner of an 2013 b8.5 RS5 I have to ask. When you do the walnut carbon cleaning, do you also have to replace injectors?

[@VAGTechnic]

You don’t have to … from experience injectors will go around 100.000 km … but it’s individual, carbon cleaning 40.000 miles

[@armandovega4597]

@@VAGTechnic thank you so much for the information. I bought the car over a year ago, it had 62.789 miles and it came from Canada. I’m located in Texas. It looks like the previous owner did took care of it somewhat, but me! I’m really OCD so I’m trying to fix everything up and make sure it continues to run smoothly.

[@riskybisness]

Just curious, you say in the video "NGK not OEM". NGK make the OEM for Audi, so what is your reasoning there ? I've heard internet rumours the genuine is actually a half step different in heat range ?

[@VAGTechnic]

How come southwest sauce is not the same in subway and grocery shop ? How ??? 😂

[@tahirotahir]

I wonder whenever you remove the engines from these Audi cars (A6,A7, A5 or any), how you deal with A/C gas? Do you extract it first or those parts of hoses or parts, stays separate and you do not have to touch (I am sure that is not the case). I am interested in that part of job because I own a 2016 TDI A7 and one day will be doing water pump and that coolant housing for which the entire front cover need to be pulled out. At that time I would have to remove the front bumper, radiator, AC condenser and front bar. Please if possible, do show when you work on that Audi A7 which is parked outside.

[@riskybisness]

Mechanic from New Zealand, see how they never fully remove the front bar but angle it outwards (when not removing engine). Thats to avoid breaking the A/C lines, its designed this way with flexible hose at that point of the A/C system. Good luck for your waterpump and with Audi my one tip is this. It should feel tedious, not hard, if it's hard you are probably doing it the wrong way.

[@roehector]

It’s like waiting for Xmas

[@lblock4049]

Is there a warranty that could cover all this work that needs doing with these cars?

[@robertslegers257]

Definitely we taking the engine out. That goes without saying.

[@VAGTechnic]

We can’t repair cars otherwise… we provide most expensive bulb replying Europe 😂 bulb you said ? Engine out !

[@13twelve]

@@VAGTechnic 🤣

[@SRR-td2eh]

I’m on my way to buy RS4 2013 went almost 12000 miles! What do u think mate, are they reliable?

[@ItsmeChristoph]

I love these videos!

[@BenJamminJones1]

Great video guys! I'm just a bout to 'try' and change the waterpump on my RS4 B8.5. I've looked from under but doesnt seem to be much room at all. Do I need to take the radator off to do this or is there enough room if I can take the horizontal pip off and try to slide it out? The TORX bolts for the water pipe dont look damaged on my car Any advice would be really useful thanks :-)

[@VAGTechnic]

Thanks , front end off be careful not to brake the bolts , might need heating up

[@BenJamminJones1]

@@VAGTechnic Thanks mate! Will get the spanners out and give it a bash! ;-)

[@Hoktew]

My s4 in in shop for a no start its been 2 momths im scared of the bill

[@codymasek]

I'm wondering where you get the replacement catalytic converter replacement section. Also, does the car have any trouble passing emissions testing after getting that replacement catalytic converter welded in? My RS5 has cats that are starting to melt and I'd like to find a cheaper solution than buying new manifolds from Audi.

[@VAGTechnic]

would have to check who was the supllier but they were euro 5 , emissions are fine but the car is coming back for lambda adjustment after replacement . After long runs the treshhold fault code came on

[@christopherescurat7759]

what type of catalyst do you use?

[@remzi996]

Tour on all cars which are parked?

[@VAGTechnic]

Engine out , engine out , engine out , engine out … 😂

[@stevenyu6655]

Good night love love and miss you guys

[@tubejorrit]

I would really like to own a RS4 B8 but with all these failures and carbon build up it would be more wise to buy a C63 or M3 if you want a German v8.

[@SRBIN722]

Dali vam treba majstor, hocu da radim kod vas

[@Jolinator]

Hey guys I have a question does the B7 RS4 have the same exhaust layout? Are they integrated into the manifold and require engine removal to get to the primary cats?

[@VAGTechnic]

B7 is different

[@Jolinator]

@@VAGTechnic Thanks!

[@joelovegrove2557]

How did you get the snapped bolt out? Interested to know how a professional tackles these challenges. Bolt extractors never seem to work for me.

[@jamesmedina2062]

The Hansen bolt extractor (in appropriate size) has a specific drill bit dimension which must be adhered to and then the reverse spiral should work if you go slow with a tap handle. I have never had a failure.

[@jamesmedina2062]

...but its also possible to cut two small notches on either side and use a flathead screwdriver or use a Vise-Grip if there is enough of something there to grab. The make the notches small Dremel cutting wheel or sharp chisel.

[@doca8792]

Your smoke detector alarm needs a new battery

[@andymitchell368]

that pincher is absolutely beautiful

[@marmito6708]

Link to get the Audi Shirts?

[@-Loki--]

Do fuel additives not clean off the carbon deposits?

[@timbo19751975]

These are FSI engines. Dry intake.

[@parowozy]

how did you clean carbon on silver one ? what method ?

[@VAGTechnic]

Walnut

[@mastalee1776]

So how much does this cost to do the carbon cleaning etc?

[@VAGTechnic]

4.5k was the silver one - 8 injectors , cats , carbon clean

[@M_S-pf3bt]

Nice to see vehicle protection…. Oh wait there isn’t any 😂

[@VAGTechnic]

Like on 90% of the jobs we do 🤗

[@danieljessop7140]

I own an Audi B8 S4. Love the car but my god are some of parts poorly built/designed. If I couldn't work on it myself I wouldn't touch an Audi with a 10 foot barge pole lol. The v8's are even worse. Engine out for the slightest thing and full of issues.

[@13twelve]

Did I miss the dog's introduction?

[@VAGTechnic]

There wasn’t any 😭 but you can follow her on Instagram thorathedoberman

[@dodesdodes3466]

Super anglictina ako to stihate super👍👍

[@hyper8545]

👍🤙

[@iamdanfleser]

Same same Different different Nice saying😂👍

[@mbrylewski]

No cheating😄

[@adurmom]

At least the grey one is MOT’d

[@VAGTechnic]

Silver one is coming next week for MOT and lambda adjustment / check . Owner is travelling a lot 🤓

[@stevehampton6598]

This work was done in July and the car had MOT, The car needs the ECU adjusting for the new CAT’s otherwise MOT issue due to EML, I’ve been in US for the last 2 months so not been able to get done. Thanks for your concern though 😂

[@dawidlalorny7900]

Miroslav is Polish??

[@Bet-vx3fg]

Slovak republic

[@manxman8008]

technicians, mechanics use hammers and spanners. Audi, the technician's friend (not)

[@MEGASilleh]

Requiring this type of work at 50k...

[@peterphilipse8792]

Reminds me to never own a b7 🤣

[@GlossaME]

I think a lawnmower is more reliable than any AUDI.

[@VAGTechnic]

Electric ones Yes till the warranty run out

[@peterlee6745]

This is it .WHEN U NO What Your Doing Have The Tool Room and The No How 2 Do it . BUT in UK Thats 80 pounds a Hour WORK THAT OUT Thats with/out The Parts ???

[@ZeeMeikel]

V8‘s needs theire disziplin

[@jackpalczynski7884]

Poor customers? With RS4's? I don't think so. Maybe they should be driving Fiat 500s.

[@DenHvideHund]

looks like a pretty crappy engine

[@riccccccardo]

😅🙈