Carbon Cleaning - How To Scrape and Walnut Blast your Intake Valves Audi 3.0T B8 S4/S5, A6-8,Q5,SQ5

[@wasp233]

video has been posted 3 years ago, but i just want to say thank you for taking the time to post a video like this. You and your channel, along with a few others have saved me thousands and thousands of dollars, enabling myself to DIY. Also, im learning so much and having a blast in the process. Thank you!

[@Fujit_01]

This is better than watching Netflix

[@Wooderson99]

If the lifetime guarantee and the fast shipping wasn't enough to keep me as a lifelong customer, these fantastic videos are what absolutely seals the deal. Every part of the video is such high quality - the camera quality, the editing, the presentation - 5 stars guys, keep it up!

[@fcpeuro]

We appreciate that Neil, and are grateful for your support!

[@gregoryfairchild2460]

Just to let everyone know. The video on Pcv valve did not tell you to hold the intake flaps slightly open as you install the intakes or the flaps will get stuck closed. Try to actuate your flaps after the intakes are down on the injectors. Make sure they move freely.

[@mk_ultrarunner]

Others do, but yes just make sure they are actuated open before setting down the fuel rail.

[@calebshauer2348]

Why do you take off the lower coolant hoses? Is it necessary??

[@audis5512]

Good time to change out the thermostat, water pump, PCV valve and supercharger oil and get it all done and out of the way since everything is off. Keep them coming FCP!! 👍 great video

[@fcpeuro]

We may or may not have a few of those videos coming out within the next week from this job haha

[@mastalee1776]

@@fcpeuro yes

[@fcpeuro]

@MattCitro That may or may not be coming out next... ^.^

[@ajnanyc]

@@fcpeuro PCV replacement next PLEASE! Mine is due and I've been procrastinating and researching how to do it.

[@johnd8651]

And coolant crossover pipe...

[@therevin7]

Great video guys! Helped make this task doable myself on my S4. Still took a couple weeks of nights and weekends, but I got it done with the help of this video and the walnut blaster kit you guys put together.

[@silenthaiku5092]

Great video and solidified my decision that this task is out of my diy skill set and will be making an appointment with a professional!

[@m4gician]

Agreed. I'd have to buy a ton of speciality tools and items just to be able to tackle this. With so many little things to remove and reinstall and remember this is definitely more suited to a pro and hopefully one who cares like the guys at fcp euro do.

[@Taydrum]

its going to cost around 1000$

[@Diovanni]

😅

[@TomSmith-kc8mz]

@@Taydrum or 40k if you screw it up

[@morganlingsweiler9813]

It looks like the b9 V6 turbo motor is going to require the motor to be dropped out of the car to clean the carbon off the valves. A reason for me to now look for a b8 that has this job with the motor still in the car lol.

[@pauljanssen2624]

I think OD deserves reward for Designing the engine that needs to be worked on 24 hours and how they allowed the front end to be easily bolted off that's the front clip so you can work on your Audi 24/7 Now That's What I Call real engineering

[@jameswan670]

That Zip tight idea is great!

[@mk_ultrarunner]

Two questions (maybe three). Why did you have to remove the coolant hoses from the heat exchanger? To let more fluid drain? And did the walnut blasting not work well enough?

[@gavanphotography7814]

Why do you take off the coolant lines underneath to the heat exchanger?

[@andrewlane6187]

Excellent video! Very informative. Maybe one of the best videos I've seen for this platform!

[@fcpeuro]

Glad you enjoyed it!

[@claytondye6046]

Bob Ross of car vids

[@fcpeuro]

Love this

[@johnriener6456]

Just curious as to why you didn't clean up the tumble flap housing?

[@mastalee1776]

So far I'm enjoying these videos. For the b8.5 of course

[@fcpeuro]

more to come mastalee!

[@alexsterjovki5950]

Great video also how many valves are closed at ones

[@cole4987]

This looks much easier than the TSI 2.0 on my VW CC. That engine made me never want a German made car again but I'm glad I got my A6.

[@raulaybar]

Do you guys offer this service at your shop? I have a MK5 GTI with 120k miles that am thinking of doing that to. How much would it cost??

[@jamestullis4648]

What is the Cost for a complete walnut cleaning. Also how long does it take?

[@nathanmenard1601]

Will you be making this video for the A4? I know it’s basically the same thing but it would be nice to have a walk-through

[@MySniperfi]

Just a heads up. When tightening the nuts to secure the supercharger down. It’s not 20nm, that’s to much. Ask me how I know 🤦🏼‍♂️

[@williamwinn9160]

I don't see how any shop is going to take the time and do all the actual cleaning steps that this guy does to get the job done right. Repair shops are about production. Great video for a very involved job that shouldn't be needed in the first place if these things were designed correctly. I am close to buying one of these Audis and I am now rethinking it. I love the way these drive but don't know if it is worth it. If anyone knows a shop in SE Michigan that they would trust to do this job right, please let me know.

[@litos6549]

Good job Cory!!! I have an s5 2014 with less than 30.000km Same engine. How much will cost this in average? And when ?

[@DaTT78]

I have a 2014 S5 as well and had it done at the dealership for about $1400. If you play your cards right with Audi, about 85% was covered under an extended warranty. Done at around 85,000km

[@audis5512]

@@DaTT78 I could be wrong and correct me if I am but the Audi coverage I think you're referring to is a different carbon cleaning and has to do with the secondary air injection system which does not include the intake valve cleaning. I believe in order for Audi to cover this, you must get a "hard fault" which triggers the check engine light and 2 codes must be present upon diagnosis, this requires bumper to be in service position to get to the two ports...very common issue and coverage I believe is 10 years or 120,000 miles whichever occurs first Also don't bring to Audi for this unless you have the coverage...$1400 is far too much for a simple walnut blast/chemical cleaning....you should be able to find a good indy shop to do it for about half that and if you're hands on just DIY and save more of your hard earned $$$ 🤙

[@DaTT78]

@@audis5512 Yes, you are correct, it was the secondary air injection system cleaning...I thought it was tied to the same thing. I was throwing only 1 code, but the mechanic made it show both for coverage. Also,, the $1400 is Canadian dollars. If the intake is a different cleaning, maybe I will look into getting this done as I have 140,000 KM's

[@audis5512]

@@DaTT78 I thought so, I'm in Canada as well, more specifically Toronto area and all the top Audi indy shops are in the $700 range for the cleaning, some shops use walnut shells and others use chemicals. If you haven't had that one done yet it would probably be worth looking into as a preventive measure! If you're in this area I can give you the name of one Also worth noting: the cleaning itself should be in the 700 range but keep in mind that the injector seals, upper and lower manifold gaskets, oil change (due to possible contamination) should be done in the process and if you have not yet done thermostat, PCV, water pump, supercharger oil especially at your mileage it really should be done, especially if you are planning to keep the car for awhile!

[@DaTT78]

@@audis5512 I'm in Burlington. If you want, you can drop your email address in my channels discussion box and I can reach out to you for some more info.

[@motalic4626]

How well dose this work wish u would of tan it before the clean

[@RyanMConfer]

Great video, as always! Any plan on a walnut blast video for the 4.2L V8 FSI?

[@khaledkabalan9066]

After rotating and closing the crank, when I'm done, should I rotate it back counterclockwise to reopen them?

[@CorradoAlley]

I love the support for this engine, thank you this is spoon feeding at its finest.

[@fcpeuro]

Glad you enjoy it!

[@zachariahsrivilay8854]

At 15:20 you said we can use that bottle if we don't have access to air or even the walnut blaster right? So can I do this job without actually buying the walnut blaster ?

[@an3ony]

this vid is encouraging, makes me feel like a shade tree mechanic like myself can handle this on mine

[@kayvonmansouri]

Awesome video! Where is the carbon introduced into the engine? does the supercharger have carbon in it? or is it introduced below that?

[@CrowdHunters]

Thank your government emissions standards for forcing crankcase ventilation to be routed back into the engine gumming up the valves because direct injection doesn’t clean off the valves with gas like port injection does

[@kayvonmansouri]

@@CrowdHunters right but where in the intake is it introduced? pre or post supercharger?

[@radicalnrk12]

Can I disconnect the battery to avoid any accidents?

[@pajapajic8809]

Nema potrebe

[@fcpeuro]

Certainly wouldnt hurt!

[@Afr0m5n]

At what mileage do you recommend doing this service?

[@fcpeuro]

We recommend performing this service between every 60-75k Miles

[@DMW2000]

Christ. 180 and never had it done to mine. Calling my mechanic stat, hahaha!

[@shotgunwinner]

@@DMW2000 You should be happy at the prospect of how great it will be after !

[@bbreed1]

What’s something cost for this service

[@fcpeuro]

@@bbreed1 Roughly $1200-1400 at most shops . Much less on your own!

[@b8addict]

Awesome video with really detailed instructions. Thanks FCP as always.

[@fcpeuro]

You're very welcome, b8Addict! Glad you liked the video!

[@VigorousZinc]

@@fcpeuro When closing the valves and they are fully shut are you going till you see them shut, or do you go to the very end of that last 10 degrees to where they’re still shut but turning it anymore and they’ll start to open again?

[@bloodblood23]

Do u see power gains after carbon cleaning? Talking about the power that is lost due to dirty ports.

[@PITA-kd2jn]

yes, restores lost hp

[@oxy6233]

I've found reports but no confirmation that the B8.5 CREC engines also have port injection which helps clean the valves, anyone know if this report to be true?

[@brent7261]

Will this fix the P2006 code? Or should I look at replacing the sensor? Vacuum lines? Thanks

[@donovanmorris2644]

Please help with any reccomendations if any, i did this carbon cleaning along with pcv replacement and after am now getting a cylinder 5 misfire. Switched packs and coils to make sure it wasnt a cpincidence and they could of went bad. What do tou think ciuld be going on? Injector issue or evap leak maybe ? Getting codes p0305 cylinder 5 misfire and p0310a cylinder disabling ( injector fixed this issue for anyone else that might have it come up

[@Leakybags5]

Can I do this without a special tool for the crank?

[@somaxusa]

Does a car need to be in neutral when rotating the crankshaft?

[@coreyokeefe1270]

Should we pull the fuel line fuse in the drivers side fuse box?

[@fcpeuro]

It can't hurt!

[@coreyokeefe1270]

If changing valve cover gaskets should we use new bolts?

[@salmaniftikhar6583]

@fcpeuro, pls confirm is it a good idea to clean intake valves by spraying throttle cleaner with car at idle start , will it clean valves and throttle, and combust everyrhing from exhaust ?

[@adamesposito8985]

What does he mean open up door n prime the fuel injectors??

[@hivepixels]

What sort of tool did you use to suck up the liqui moly chemical?

[@jameswan670]

That Zip tight method will clean perfectly?

[@AviSensation]

would a carbon clean fix my P0492 issue ? i just got that code this weekend

[@tctk1]

@10:01 that vacuum line. That comes from the solenoids under the SC. Where is the connected too where you disconnected it? Please this could save me SUCH a headache

[@tctk1]

I'm thinking they go to the tumble flaps, in which case could those possibly throw a Secondary Air Injection insufficient flow error code. Specifically bank 1?

[@Bk71290]

For DSG cars, to turn the crank over to close the valves does the car need to be in neutral or any specific setting? Does anything need to be reset after turning the crank over?

[@allisonspringer8152]

Nope, just make sure you only crank clockwise like your tightening the bolt

[@schwarnoldnarzenschwegger1886]

Just disconnect the battery and you can close and open the doors while working on it am i right?

[@TwentytenS4B8]

It is at this point after running the gauntlet of removing the charger, that the PCV valve, thermostat, water pump, and a new set of injectors would be installed.

[@joseduranjr4963]

Please do a video on walnut blasting for a 2017 VOLVO XC60 T6 with the 2.0 supercharged and turbocharged engine. I’d also like to know how to find and clean the throttle body. Thank you

[@jdmnismo7]

At 17:26 how do you take out the port dividers ? Should I use a pair of pliers ?

[@joshuamacdonald8785]

I heard I should do an oil change just after blasting, is this true? What is the reason exactly?

[@MuhammadAkbar-ri7xg]

Appreciated the detailed info captured in this valve cleaning process

[@black328is]

Can you do a video of this procedure on a B9 with the 3.0 turbo motor?

[@Sodjeagency]

Thanks, that was good. Can you make a video on cleaning the airflow sensor in Audi A7 3.0 V6 TFSI.

[@JC-io8pv]

The aluminum I love. You know that protects from snow ❄️🌨️ What was the miles in this amazing machine ?

[@soto575]

Walnut Blast or Dry ice is better ?

[@michaelcavalli2395]

What's this tool you're using at 15:28 to suck out the liquid? Can't find a link in description.

[@michaelcavalli2395]

Unless it's the fluid extractor?

[@fcpeuro]

@@michaelcavalli2395 Yupp its the fluid extractor!

[@gladiahtor2.0]

What is the part number for the gaskets for the flaps? You didnt list it in the description

[@Orvis-Creations]

Is this related to codes P0491 and P0492? Man I’m trying to find the answer to this problem, I have a 2012 s4. It says (air system insufficient flow bank 1 and 2.

[@Killian665]

I don’t understand why no one makes a catch can system for the SQ5. That would solve this whole issue and I can only find them for the S4. I imagine most of it would interchange but I think some of the mounting brackets and hose lengths are different.

[@fcpeuro]

You hold the power to do so now!

[@mikimiki195]

Now why did you unhook bottom coolant lines I didn’t think that was necessary

[@somaxusa]

I would like to know as well.

[@mechsuit80]

Two years later & I would still like to know why as well. I can only surmise that it's because while the crank is being rotated so is the water pump, which could cause fluid to come out of areas you wouldn't want it to?

[@chriskim7642]

Do u have the part number for injector seal? N 034 bleed screw, Couldnt find it from ur website

[@fcpeuro]

Hope this helps, all other products from the video should* be in the description as well! www.fcpeuro.com/products/audi-vw-fuel-injection-nozzle-o-ring-kit-06e998907e?+audi+b8&+clean

[@chriskim7642]

@@fcpeuro when u use the tool to turn the crankshaft to close the valves. Does it matter if its an auto or manual? Do i need to put the car in neutral with auto? Also changing injector orings a must?

[@pepemedel4420]

i hope you can give some advices for the audi s6 v8 twin turbo c7.5 2016

[@fcpeuro]

what kind of advice were you looking for?

[@pepemedel4420]

@@fcpeuro i have the s6 2016 and i would like to have more exaust sound but i dont want to replace the all mufler, what i can delete to have a better v8 sound but not crazy. thanks

[@soccer1404]

Isn’t it usually recommend to replace the fuel lines once removed cause they can leak at the fitting?

[@johnjuarez8005]

At what intervals should one carbon clean? I have a 2015 S4 with 104K miles. Thanks in advance.

[@djbrissette]

Am wondering the same thing! Got a 2013 S4 with 106k km

[@davidscaife4312]

Number 1 tip fit a catch can asap I made one up for 30 quid

[@Dirtxbc]

Yes!

[@jeremymason6347]

I have a 2010 a6 3.0 . Are the steps the same?

[@spidusp]

will u notice before and after cleaning? does the car runs better?

[@pw5192]

I loved that job , cant wait till i get to do my timing chain . Great walkthrough thanks

[@mk_ultrarunner]

Seriously? Timing chain is pretty much dropping the tranny and engine. Not fun.

[@MsSechkin]

there is nothing out to avoid this carbon build like using catch can or using better fuel (like bp active technology they offer clean engine like remove carbon build up ) ?

[@fcpeuro]

Nothing aside from adding port or methanol injection will completely prevent carbon buildup. A catch can helps delay the buildup but not prevent it completely.

[@SteveE293]

@@fcpeuro does driving style and the kind of journey the car does, like motorway miles vs town driving make a difference to carbon build up ?

[@snakkedr]

That's one of the inherent drawbacks of the gdi engines. The fuel doesn't spray over the intake valves so additives to the fuel do nothing to help.

[@KenyonPayne]

Whats the best solvent/chemical to use to clean the carbon buildup manually?

[@davidmusiyenko4158]

My injectors came out with my intake covers. What the heck did I do wrong. I ended up simply vacuuming around and putting them back. Can anything bad happened because of that?

[@brewster1233]

Ah yes Audi AG (as well as other DI engine manufacturers). The dealer did my 2.0T A4 valves at 70 KM under warranty. Then did them myself again at 135KM before any codes (Pictures to prove!). Along with the timing chain tensioner, chains, guides, balance shafts, etc as preventative "service". Honestly if you're adverse to high dollar dealer maintenance or if you don't trade your car in every 4 years you might want to avoid these cars. They are definitely not buy and forget. Don't get me wrong I still love my 2012 A4 - 6 speed manual, 220 hp, awd - what's not to like - except for perhaps a little bit less "maintenance". And yes I would probably buy again - If I could get a low mileage manual when I retire. They drive like nothing else. Period.

[@jameswan670]

Not only for Audi. All German cars are prone to be broken down. They need frequent periodic maintenance

[@nathanielholloway8267]

I have a Audi A7 and it has 104k miles I have CarShield..will this process be done at the dealer🤔

[@jcgud]

Can the GDI spray cleaners be used, or the supercharger will have an effect on using those sprays? If you are supposed to clean the inductions every 20k miles this is a lot of work to do every other year

[@fcpeuro]

We suggest doing a service like this really every 60k miles, the only thing that really effects the teflon coating on the supercharger screws is long term meth injection. Those sprays aforementioned would be fine .

[@davewilliams7565]

Can anyone confirm that North America did not get the revised 3.0T engine model CREC? Over here in Europe the 3.0T Supercharged engine was replaced by a new generation engine supercharged engine? One of those revisions being low pressure fuel injectors sat in the inlets in the old school way. This would alleviate this carbon build up on the intake valves! The later gen CREC engine had 12 injectors! 6 DI high pressure injectors and 6 inlet low pressure injectors. Plus many more upgrades.

[@joerrelsaguin4550]

Will you guys have the 2011 audi a6 3.0t OE Intake pipe on your website sometime soon?

[@MASPerformanceVAG]

would of flow tested the injectors whilst the chargers off given the usual VWAG historic tsi/tfsi failures. Good video though with great detail

[@jaa999]

Are those port divider install incorrectly?

[@Bytrl]

I miss my hondas. This is.. an insane procedure, even compared to a 100% nut & bolt honda engine remove, rebuild, and reinstall. Is there any fuel cleaner, or aftermarket kit designed to minimize the carbon buildup on this platform? Is there a specific culprit other than just direct injection?

[@fcpeuro]

The simple lack of fuel passing thru the valves in all direct injected engines is what causes the buildup of carbon. An oil catch can and slow the process but not prevent it. Methanol injection, however, will help keep the valves clean.

[@rustamyussupov6161]

I didn’t find that alu cover in your website ?

[@fcpeuro]

Are you looking for the aluminum skid plate? www.fcpeuro.com/products/audi-skid-plate-four-rings-auto-fourrings001?

[@rustamyussupov6161]

Yes, but couldnt find for A6 c7

[@fcpeuro]

@@rustamyussupov6161 Ah ya we dont have it for that yet. We can talk to the manufacturer making the skid plates for us to see if they could make some.

[@tylerpadlina943]

at what mileage will these engines need to be walnut blasted?

[@sherard9able]

I'm in Georgia where are you located I want you to do my carbon cleaning

[@szaladgal777]

Hi, After how many km we have to make this cleaning process? Thanks for the answer

[@buffaudi6293]

The first time you should do this is at 150,000km. Or 90,000 miles.

[@onealcampbell2802]

How much would it cost to get this done

[@blackjak9194]

Shouldn’t you unplug the battery first?

[@fcpeuro]

It is good insurance to do so!

[@jeremyfelix6261]

Would opening a shop and specializing in audi cars a bad idea?

[@ingegneriafacile]

Can I put the gearbox in N ? I let the gearbox in N

[@paulmanzyuk]

how many miles was on the s4 you filmed?

[@JoseJimenez-gm7wx]

where are you location i nide help to puré back

[@figleafyogi]

9:08 mouse droppings?

[@JoeyS5]

How many miles did this 2013 s4 have??

[@jforu33]

How many km's are on this car?

[@ptzish]

I just had a mechanic do this for me and now he's getting a p2006 and p2007 code. Can anyone shed some light on the possible problem PLEASE!

[@TwentytenS4B8]

P2006 is a connection failure for the intake runner flaps. He probably forgot to plug it back in. { Remember that little plug you saw him unclip in the video before completely removing the flap housing? } P2007 is a stuck runner. Did he do like in the video and put pressure on the flap before seating it on the heads? If he didn't, the runners will be jammed up against the port dividers and will not operate.

[@eliliv2hunt247]

Or the flap on bank 2 "driver6 side" got stuck on the dividers when reinstalled

[@michaelcerick9999]

Any reason this vid doesn’t cover the 2016-2017 A6 3.0T?

[@dmgreviews451]

They made changes to the gen 2 motor thats in the c7.5

[@jennadollface]

would love you to do my car looks like my car would be in good hands

[@xiaoma466]

How long of this work need to take?

[@fcpeuro]

Hi Xiao, this was a full day for us in the shop with filming taken into account!

[@xiaoma466]

@@fcpeuro Wow, it’s not a easy job.

[@taylorwebster5898]

Would this video be a good guide to doing this to a 2009 A4 3.2? Minus the super charger it seems very similar.

[@fcpeuro]

While it is a different engine, the process is similar.