VW A5: Tiguan 2.0LT Intake valve decarb 

Thank you for watching! Let me know how it works out for you.

Yes, that's a good maintenance schedule for cleaning... depending on driving habits / conditions, it may even need to be done sooner.

Momtaz Shakhshir As long as it's not cute! :-)

Walnut or Soda blasting is definitely the quickest way to clean them!

+oppanheimer Thank you for watching!

wysetech2000 A friend of mine at a VW dealership says they use sodablasting to clean the carbon off. I like the walnut setup I have (was cheap to buy) and as long as no walnut debris is left in the head, all should be good.

Steve Rob I would think that short distance / stop & go is worse... this is the first one and I think that this was his first cleaning. I've had comments from others saying that they were probably cleaned before... I think not, so he must be driving it more than others.

Yeah... blasting is the way to go!

Yeah... there are several ways of doing this. If you have an air compressor & vacuum cleaner, the media blaster can be bought cheaply at harbour freight. Soaking & scrubbing has its benefits... no compressor needed. Start recording & posting vids! :)

Thank you! Send me your mailing address and I'll send you some of my channel stickers. Go to my website (fkh161 in the description) and send me your info... click on "Tool Request".

Thank you for watching. It's best to get a quote from a Euro repair shop in your local area.

Thanks for the kind words! Cold start misfires is a good indication that carbon might be the issue. I use a borescooe (remove intake temp sensor) to check a couple if valves / to see how bad it might be. If there's no history of carbon cleaning... it needs to be recommended as first step. Also make sure that the pcv has the most recent oil separator on top of the valve cover. My current & old shop were mom & pop. You learn as you go.

Thank you for watching & subscribing!

All ports were cleaned.

I can say the same for lots of manufacturers... holds true for many other things, furniture, bicycles, homes. In a perfect world, there would be no problems / issues.

Yes. At least it keeps you busy. Great videos by the way! I do my own work. It's great to watch a pro before starting a job.

Jason W I agree to an extent but for example, my 2014 Audi s5 3.0tfsi has 140k. I walnut blasted at 80k and other than that, I've replaced the water pump, thermostat and the motor mounts. Nothing else and it runs the same as the day I bought her with 15 miles. Been more reliable than any Honda or Toyota I've ever bought.

If he only changed the coil connectors, maybe it needs coils this time. Why not go back and have him look at it. It ran fine for 2 weeks, so he obviously knows what he's doing. I don't know why there's so much distrust when going to mechanics. The car is 13 years old, of course it will have problems. Many things can cause misfiring / lack of power. Maybe it's something else this time. Timing chain issues are common. Have the chain & tensioner checked before it fails completely. Are you the first owner, 2nd, 3rd? If you are not happy with it, trade it in for a Honda or Toyota, but then you won't needt to chat with me. =)

@@EXOVCDS I fixed it myself by replacing the ignition coils and spark plugs by watching your videos and some other dude video so thank you but I’m going to keep it for now then sell it eventually since I have another vehicle.. you should know why people have trust issues with mechanics, mechanics are not here to favor people they are here to do their “job” just like everybody else. Main reason why a lot of people try to do themselves instead of having to pay a leg for it to get repaired. Only people who don’t know nothing about cars or don’t have time to repair themselves or get a replacement always trust mechanics to fix their car, people with a brain knows mechanics are not here for them. You can’t be defending this crappy Volkswagen company even how old the car is, majority of their cars are unreliable. Only positive thing about these cars are driving when it’s repaired or how it looks anything else is complete garbage.

@@OFFGRIDDAN good luck with things in the future.

Also what model year is this Tiguan?

I'm sure you can do it... but it might be cheaper to let someone do it for you.

I think this was a first generation Tiguan.

Thanks for the feedback, I guess I'll ask around in my area to see how much this would cost before I go and buy a Tiguan.

Disconnect the fuel metering solenoid on top of the high pressure pump. Run the engine for 10 / 20 seconds (will set a fault code for that solenoid, no big deal). High pressure will be gone... only low pressure will remain. Open any fuel fittings slowly... place a rag around / under fittings to catch the small amount of fuel that will drip out. A regular sized "Shop-Vac" with a Silicone hose attached to the front of the shop-vac hose. The silicone hose has a hole in it so that I can put my walnut blaster rod through it. The silicone hose needs to be big enough to cover the intake port of the head. Thank you for watching!

Yes... each cylinder has to have the valves closed (intake valves). You can see them when the intake is off... then you just have to rotate the engine when you want to to the next cylinder.

Hi Thomas, thanks for the info. I was watching another video and it mentioned cranking the engine just a split second to close the valve. My next question is how would you know if the valves are fully closed? Is it possible the valve is slightly opened? Like a hairline gap? Thanks.

Bumping the starter to get a cylinder to the compression stroke, can help confirm that the valves are closed (can't build compression when valves are open). Turning the engine by hand (clockwise) can tell you when you are on the compression stroke and it will allow you to see the valves opening & closing (while someone turns the engine by hand). If you go past TDC, the valves will still be closed for the power stroke and some of the exhaust stroke.... so the valves actually stay closed for quite a while.

Hi Thomas EXOVCDS , that's good to know. Thank you very much for your help.

142k km's... no injectors in front of the valves for gasoline to wash them clean with every intake stroke. PCV fumes are the only fumes to go past the valves... after the power & exhaust stroke, valve overlap pushes a bit of hot exhaust back into the intake and the Pcv fumes get baked into place.

+Ricardo Pelaez Thank you and thank you for watching! This one had 142K km's

JohnzCarz Intermittent misfires when cold. If treated with an induction cleaning agent on a regular basis, from what I hear, it can be prevented / slowed / reduced.

***** We have the BG line of products where I work. They help if done regularly, but quite honestly every intake I pull looks disgusting from the 2.0t to the 5.0v10's. Cleaning by removing the intake is a great way but kind of hard because no set labor rate. Plus I worry sometimes the chance of a flap or the shaft that controls the flap messing up or vac leak afterwards might then cost us an intake manifold. But sometimes it needs to be done. Great video by the way!

Bozi B Thanks for the info and thanks for watching & taking the time to comment!

Yes, sometimes more than one will remain in the head. Yes, the teflon seal & o-ring should be replaced. Injector seal kits can be bought.

There is no set mileage... could be as early as 30k miles or as late as 60k miles. Usual sign that a cleaning is needed, is rough running cold engine (misfiring) but OK once warm.

Thank you and thank you for watching!

Lower price isn't always better... there are many seals that need to be replaced when removing the intake. Lots of shops will not know what they need to replace, and the price will all of a sudden be higher than the initial quote. Many shops do not have the walnut (or soda) blasting equipment... so they end up doing a mechanical cleaning (hand picks & chemicals) , which takes longer than a media blasting setup. If you are a regular / current dealer customer, stick with them, so all the work history is with them. If things go wrong down the road, you know that it has been dealer serviced... and they can't claim fault due to unauthorized repair facility. But a competent Euro Specialty Repair Shop should have no problems cleaning the intake ports for you.

Thomas EXOVCDS Thank you for your reply! I just checked with several auto repair shops and they ALL use chemicals though it’s much cheaper.So I should go for a walnut blasting solution right?

Up to you... whichever is easier / cost effective for you. Let me know how things turn out.

Thomas EXOVCDS I will! So far I haven’t found any place could do walnut blasting, including VW! They said they will clean by hand.

VW Dealer should have Soda Blaster (similar to walnut blaster, but some kind of fine powder). It doesn't matter where you take it... I just wanted to be sure you take it to someone who's familiar with the vehicle and the cleaning procedure.

Thank you and thank you for watching! Happy New Year!

Used or new? Vacuum controlled or by electric motor? Year, make, model, engine? The more info I have, the better I can help. Are the flaps moving when activated with a scan tool? Snapping the throttle should also get them to move... do they? Post a video on your channel so that I can see what is / is not happening.

guayaco3299 One of many'a my tools that the boss charges extra for on the invoice... without me getting a kick-back. He doesn't seem to think ahead & by stuff we need... but he knows how to charge extra! LOL

Thomas EXOVCDS that always seems to be the case right.. but in my case i just dont do a job n let them loose money till they buy it..

guayaco3299 I'm making an effort now as well... to point out that we might need special tools, for things that might start coming in the door.

Thomas EXOVCDS I do also Thomas...but many times it goes into deff ears till they realize the money they loose by not having it...

I don't have to... the boss does. If intake manifold is listed in the labor guide, he probably used that as a starting point and then estimated the actual cleaning time.

@@pedrocols Not EVERYTHING is listed in labor guides... carbon cleaning was never expected by the manufacturer... so how can they provide labor guide estimates? Typical response from a "who has the lowest quote" shopper. Cheaper is not always better. Good luck in your quest to save a buck. If you re-read my reply above, you will actually realize that it was a very logical reply. I'm not behind the counter, so I don't know what gets charged (cost will vary across the country, what good is a single $ value then?). Read any of my other replies (under any of my videos) and you will see... that with the right attitude, you would get more than enough help from me to set your mind at ease. The joke is on you... you had your chance. Blocked messages will no longer appear. Good luck getting replies from other channels. What a joke you are.

I'm not sure what you mean, sorry. I record while I am at work, using video glasses (I need a day job to make a living, so I don't have time to "zoom in" on everything). If you have questions about something, ask them. For the most part... remove what you have to remove, in order to remove what you want to remove. This video should still give you a general idea of what I am doing. You can "refer" to your own engine (look at it) to make sense of things... again, ask questions if you have them. Making a mistake during this kind of cleaning (big carbon pieces falling past a valve) can cause engine damage. You need to assess if you can handle such a repair. Thank you for watching!

@@EXOVCDS no worries , no fault , most likely because i dont have enough knowledge to do this im pretty sure

Fatih Arslan Sorry, I don't have a video for that yet... the service manual should have information on that. I'm away from my pc till tomorrow... so I can't check for you right now.

Thomas EXOVCDS thanks for your reply but i'm very far away from the service so i have to change myself, ok i look forward to your new reply in the coming days, thanks a lot have a nice year

Here's some info that might help. fkh161.ca/VW/Tiguan/TiguanFogLamp.pdf For $35/24hrs USD you can download as many service manuals for your car as you would like, from: erwin.vw.com/erwin/ Once you have the manuals, it's quicker to look things up, than searching the web... but I don't mind helping (when I can).

Thomas EXOVCDS oh man thanks a lot, this is excellent information and enough for me.👍😉

vulcanbespock Thank you for watching & taking the time to comment!

Since I don't know what all you disconnected... check all your connections first. Did you rotate the engine to close intake valves? Which direction did you turn the engine? Did you plug in all the injectors? Even though the engine does not start, did you check for fault codes?

thanks for the reply I turned the engine clockwise and random misfire@@EXOVCDS

So it's running now?

not yet I took everything off again and i'm rechecking everything , thanks for the respond , i'll keep you posted@@EXOVCDS

@@ghettosmurf76 what ended up being the cause of the engine not starting?

I use Walnut Shells. static.summitracing.com/global/images/prod/mediumlarge/sum-913126_ml.jpg

i1.wp.com/walnuts.org/wp-content/uploads/2017/07/walnut.jpg?resize=505%2C473&ssl=1

+Javan Javadov Thanks for watching & taking the time to comment!

We have same type of engine at the shop we never did the cleaning of the valves, It had 4th cylinder misfire. After changing the coil,still had the same code, we went in to change the injector, we saw that valves are dirty. I was thinking to cleaning the injectors. How did you clean it? Is it just air? Or is there any vacuum attached? any cleaner chemicals? Thanks for taking time to answer questions.

+Javan Javadov Walnut Blasting... watch this: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Z-zmhv_LWr8.html and this: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SGETxchByUk.html

Thank you for watching!

No... but depending on driving habits, it should be (on all direct injected engines, because they don't have injectors in front of the valves that would wash them clean).

Not on direct injected engines... the buildup is too much. If large pieces break off / come loose, they can cause damage to the valves. Best thing to do is to manually decarb after removing the intake.

Thomas EXOVCDS how would I decarb my 2014 vw jetta 1.8t automatic?? is it the same process as what you did with this 2009 tiguan? what is the benefits performance wise does decarbing do to your vehicle?

Sorry about the late reply... I have not yet done one on a new 1.8T If the engine does not have an "extra" injector (some new direct injected engines have one) that sprays fuel ahead of the intake valve (to help reduce carbon build-up), then the only way to clean the carbon is to remove the intake manifold and use some kind of media blaster or manually scrape the carbon off.

Thomas EXOVCDS has Erwin manuals updated their repair manuals yet? how detailed are their repair manuals?

Sorry it took so long... erWin website had technical issues that tech support did not believe. Here's the drain & fill portion of the service manual: fkh161.ca/VW/CoolingDrainFill.pdf

No special tool... just some silicone hose. Which part in the video? Time?

Where did you get it?

Heavy duty truck repair shop... they cut a piece off of bulk intercooler hose. You can probably find it at a local Hose Shop similar to this one: (if you don't have a Truck Service Shop near by) www.greenlinehose.com/

It gets burnt.

The injectors spray fuel directly into the combustion cylinder... on older engines, the fuel is sprayed in front of the intake valve. The fuel cleans / washes the valve head as it passes the head. Direct injection doesn't do that. Manufacturers are now adding injectors in front of the valves on newer Direct Injected Engines to help keep the valves clean.

cool I just got my throttle body and intake manifold cleaned. So expensive... I got a leaking gasket too...

Duct tape across the cylinder head port openings... cardboard under the port openings and tissue in the injector ports. This was my first time, so I took it slow... the blasting took maybe 1/2hr (again, I took my time). There's no set labor rate for something like this (as far as I know)... so the more that someone does this, the faster & cheaper they will be. The video was edited (took out the walking back & forth between toolbox & car, lifting & lowering the car)... but for the most part it is still "time wise "correct (insert your guestimated time here).

Those are air deflectors that work in conjuction with the flaps in the intake... variable intake manifold of sorts.

Not sure what the boss charged... this was our first one, so I was allowed to take my time (so to speak). Next one will be a breeze now that I've been there done that. :)

Ok. So you get to hog all the decarbonization jobs? SHWEET

Assuming that's YOUR walnut blaster that is...

MrErikw26 Yes... LOL, it's my setup after all. The boss will be paying for future walnuts though!

NICE. I own the only scan tool in the shop, I get all the lights. I let the Atech use it too. Boss pays me rental fee.

This is a code that was stored in the ECM? What scan tool were you using? Was the TCM also scanned? I can't find any info on that code. Which automatic transmission do you have?

Power , ground, signal... there are various MAF sensor testing videos on youtube.

Soon you'll post your own decarb video!?

+Thomas EXOVCDS I didn't take the intake off I had to kinda learn and fight through it!

+frank lopez For the pump, yes. I meant decarb in general... it's just a matter of time. :)

At what point in the video?

14:40 the triple square

César Scheid The but at the top is a 13mm hex nut. The bolt at the bottom is an M10 Multi Spline (I think). Looks like this: images-na.ssl-images-amazon.com/images/I/31YPWBjFImL._SL500_AC_SS350_.jpg

ok, Thank you for your help!

+César Scheid If you buy a Multi Spline / Triple Square set... it will most likely contain the size you need. I'll check at work tomorrow to see if I can find the exact size. It's either M10 or M12

The "valve cover" does not have a gasket... VW uses just a sealant. There is a plastic PCV assembly that does have a gasket... unbolt and replace gasket. The front upper chain cover also has a gasket... more involved, don't have a video for that either... yet. =)

Thomas EXOVCDS so replacing those seals would fix his small leak? is it a easy DIY I have all the tools just learning how to do more on repairs

The top plastic pcv assembly should be easy / straight forward... the upper chain cover is more involved, have to remove passenger engine mount.

Thomas EXOVCDS do the Erwin manuals explain how to do it in detail ?

Sorry about the late reply... The erwin manuals assume that the person reading it has some kind of automotive experience. Certain things are explained step by step... while other things are just shown in "exploded view" diagram format, with torque specs for assembly. Even if you don't end up doing the work yourself... $35 for a bunch of service manuals is well worth the cost. You can read-up on what is involved and have a better understanding about how stuff works. =)

LOL... yeah, just what the boss will want to see me use. Take an aspirin... or go watch ericthecarguy or scotty Kilmer.

Great job though. BTW I watch Scotty Kilmer before bed!!

Sedat Uyysal The titles says "Tiguan 2.0LT", but can apply to any 2.0LT FSI engine... some connections might be different.

2.0 TSI engine with the same access

Sedat Uyysal What do you mean?

Sedat Uyysal If you mean "is this the same for the TSI", yes, it is similar.

Which engine?

2.0 T I clean the throttlebody and The carbon buildup also thanks for replying

Was the code present before the cleaning? I don't have any information on that code and I have not run into it myself. Check with Humble Mechanic (he is a VW Dealer Tech and might have inside information).

I did it last year the code came up couple days ago I watch the video Charles how to remove the intake

Thomas EXOVCDS thank you so much for replying I know you're busy the code is 2188 system to Rich at idle bank one have no idea I just don't want to replace parts that I don't need to replace