Boost Leak Fix : Diverter Valve Install + Burning Rubber 

+Alex Santiago Yes you can install a BOV on auto transmission though it wont vent as frequent as manual because it happens when you lift off accelerator ex shifting. A diverter valve holds boost pressure when accelerating then lifting foot off the gas recirculates air back into engine helping spool turbo faster. A blow off does the same thing but will vent the air outside. I plan on switching to the CTS BOV which comes with an electrical plug to prevent a CEL

Savage GTI thank you so much man appreciate the help!!

Dont do it. It's fun at first the. Just annoying

Recirculated is always better

@@FastSloW-qt8xf Yup, in the manual or dsg transmission you will notice a decrease in throttle response when shifting gears when venting to atmosphere instead of holding some pressure.

The plastic dv leaks you need revision g

thanks

+Tierra Anderson Your welcome

If you can hit 25psi it's definitely not the diverter valve. What boost pressure do you normally hit? My mk5 ko3 turbo at 100% duty cycle maxes out at 21psi due to the internal waste gate. If you were getting higher boost check your intercooler connections.

Savage GTI 28psi, tuned with EQT. I’ll triple check ic piping but everything seemed pretty damn snug. Turbo might be goin bye bye.

@@OfficialExcide dang mk7's don't mess around im on a Eurodyne tune. I think if it were the diverter valve you would have more than a 3psi drop. But I can't say for certain whats going on.

+EcArR eCaRr maybe the waistgate but don't take my word I'm just a young dude who likes cars

Savage GTI thanks. I found a aftermarket turbo exact one but not made by audi. Kind of like the diverter valve. 850 dollars. The only thing that bothers me is this car only has 73k miles. Smh. I hope I fix this issue

+EcArR eCaRr some parts just fail humble mechanic makes some really good videos and explanations.

EcArR eCaRr my gti has 72k and I got a P0299 after having the manifold replaced

ayokarlos I replaced the diverter valve. And turned the light off. All power came back. Then light came on and the the power left. Then two days later light went off on its own. And it's been 4 days and the power is back like when I first bought it. I believe the computer registered the new diverter valve.

You hear a hiss from under the car kinda like a hole in a straw. Loose intercooler pipes will sound similar too

@@SavageGTI thank you just ordered new seals for the inter cooler pipe and I will be sure to get a new diverter valve too. The sound is exactly like that so it is definitely a leak.

+Stage 2 07 GTI true, if you enter the cars weight you can get close readings but only a real dyno will tell HP and torque

Savage GTI I have a profile set up for my car and everything in it. still says it. still pretty useful for a lot of other things haha

Mistuffcah Inc. Didn't matter I swapped this with a CTS BOV and didn't use thread locker

Get a low profile one like the daytona. That's what I use. You could also drive onto blocks of wood to raise the body to fit a jack

It's called Torque Pro. You need a Bluetooth OBDII adapter to use it. Good for a cheap engine scan. For more advanced things I'd just recommend getting VCDS so you can also check every aspect of the car and recode additional features.

I recently encountered that as well I had another boost leak from the turbo outlet pipe. My guess is it's coming from the turbo outlet pipe you can follow it from the intercooler up to the turbo and look for oil leakage where each pipe connects. The oil here is all blow by I wouldn't worry about too much unless it'smaking a mess or your loosing boost pressure.

+alejandro cardenas yes because it's attached to the turbocharger not the transmission

No it works fine with a stock tune or a tune file. It has nothing to do with the engine. Any combustion should be in the engine lol. It's function releases the boost pressure to the atmosphere apon lifting the throttle. The stock diverter valve recycles some of the air and puts it back through the intake. The BOV I have has been great for years and still works great. It came with a dummy electric plug so the circuit isn't broken and doesn't throw a code. It is now actuated on vacuum pressure as aposed to the stock electric signal.

Just realized this was for the diverter valve. Yeah that was designed as a factory replacement. it improves on the failure prone stock part

@@SavageGTI thanks! I just placed an order for one! The one I bought comes with different springs so I can control the psi level that goes through! Thanks for sharing and the explanation!

To answer how it held up. It was a rare case for me the piston part separated from the body and I upgraded to a Blow off valve rather than a diverter valve

@@SavageGTI oh I see! I coincidentally bought one without pistons... it was the only one that would ship to me on time lol... I ordered this one: www.ecstuning.com/b-apr-parts/r1-diverter-valve-priced-each/dv100001/

I have the iKKEGOL® Bluetooth Mini ODB2 dongle and use torque pro app on my phone

I reset it using the app, you can also disconnect the battery to shut the check engine light off

Savage GTI ok. I have a 2013 Audi A6 2.0 with 73000 miles and check engine light came on. took it to the dealer and they told me to look up p0299 code. And I already ordered this part. funny thing is that the power still there. so I assumed the piece just started to wear.

Yeah if your diverter valve has a crack or small hole pressure will leak out. Car will still get boost but not full potential. would be weird if you have full boost because the code reads as a boost leak

Savage GTI it turned on Thursday. then say came off on its own and I got full power and then turned on again today on the way to work. ordered this part. hope it fixes the problem. the power is there. this started happening after I did a software recall service for the power coolant. wonder if doing a software update since it is the computer can cause the sensor for the diverter valve to fail

Thanks, yeah it seems like the U.S spec German cars get a lot of features removed and less options compared to Euro spec models. In the US you can buy a gti with regular plaid seats or heated leather. I think the new mk7s you can get recaro seats as an option.

Torque Pro (OBD 2 & car) which is $4.95 there is also Torque Lite which has less features but free. the dongle I have is "iKKEGOL® Bluetooth Mini ODB2" you can get it on amazon for $12.89 but any bluetooth OBD2 device will work

+E.C. Calmese no that's a different part

E.C. Calmese looooool

whats so funny? i came here for legitimate advice to fix my car which I've done

a simple google search could have answered your question. you should know the difference betwenn all the turbo system components

+alex galda you buy a Bluetooth obd2 dongle from Amazon or eBay

I usually just use my Chinese bootleg vcds and cable.

Can you use with I phone

it won't but your car is used to the recirculation of the air back into the turbo making less turbo lag were talking fractions of seconds so go for it

It works for both fsi and tsi engines. They use the same dimensions up until the mk7 2015+

+335kash I used a Bluetooth OBD scanner

That's rough. another time I had a leak at an intercooler connection. The car would stall out after doing a pull.

No this will not fit the TDI, I'd also check your intercooler pipes for any boost leaks. Look where the pipes connect together, if theres any dirt or oil build up air is escaping and lowering boost.

You have to stick a small screwdriver or something in the hole then pull out. It can be hard to see so you can practice on your MAF its the same clip

No you can have one or the other the diverter valve recirculates some of the boost back into the engine while a BOV vents to the air with a cool noise. I am currently running a BOV on my car now and this is the video on that ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-i3jDIAuXaUY.html

+sean poquette In this video the tires are what the dealer gave me, recently I needed new tires to get me through snow without buying snow tires. At this point I'm pretty sure it's just a stock tune the torque app isn't the best for HP. And I put on intake and exhaust for performance so far.

2007, still running strong

The GTI Stock holds 12psi. With a stage 1 tune by Eurodyne It holds 18psi. Measured with tuning software from Eurodyne

I used Torque Pro there's also Torque Lite app for free but you also need a Bluetooth OBD2 scanner. I don't think it works on ios. you can do basic engine code scans but a VCDS cable is far superior allowing you to scan all modules like ABS ect. and do vag com mods.

@@SavageGTI okok, n where I can find the bt scanner? Amazon?

@@adlp12 yup this would work. www.amazon.com/OBD2-OBDII-Bluetooth-Diagnostic-Scanner/dp/B01HXGX8V6/ref=sr_1_7?ie=UTF8&qid=1544752163&sr=8-7&keywords=bluetooth%2Bobd2&th=1

Thanks, and yes you can still drive it with a bad diverter valve.

@@SavageGTI thank you very much for replying so fast.

In this video I used "Torque" it's good for basic engine scans and works for all OBDII vehicles, you will need to buy a Bluetooth OBDII Scanner separate. VCDS is a much better tool for diagnostics and cool custom coding on cars like VW and Audi.

Thanks bro. What do you think about the forge bov spacer/adapter

@@ammaar7741 I wouldn't bother with them they are just a gimmick and still use the factory diverter valve, I made a video about the CTS BOV and that is what I am currently running. It's a solid build construction with an o-ring. The BOV is mechanically activated and with my Eurodyne stage 1 tune I can hold 18-21psi no problem and with good throttle response.

My new one also broke, a rare occurrence for the revision D. I've since replaced that with the CTS BOV. Talk about fun and pshhht sound every time you lift off throttle, also works in nutral because its vacuum actuated

The oil is all "blow by" it comes from oil going past the pistons into the crank case and through the PCV (positive crank case ventilation) which routes oil vapors through the intake to be burned off. Thus oil going through intercooler lines and out BOV. A Catch can should eliminate this problem.

@@SavageGTI oil blow by meaning?

@@andreamoalosi3633 Oil "blowing by" refers to oil going past the piston rings due to high pressure and goes into the crank case.

I know, but you can see a deficit. I also didn't have tuning software or VCDS at the time

@@SavageGTI I just got this code yesterday so need to check my DV tomorrow lol. My turbos new and a hybrid billet 360. So hopefully it's that

bummer sounds like you've been at this code a while, I would make sure air filter is clean too. look for any hoses or spots where there could be an intake leak. I haven't had that code pop up for me so idk.

check vacuum hoses

Mk5 _Life that’s next any idea where to start?

@@Marquan1988 turn on your engine and if you hear a hissing sound just trace to where its coming from usually thats how you find vacuum leaks

Mk5 _Life ok will do I was told to spray brake cleaner over hoses as well like it makes the revs drop or so?

Most likely diverter valve especially if the car feels slower and any passengers don't feel that stomach feeling. Also check the spots where the intercooler pipes connect if you see oil and dirt build up there is a small leak there. This was a problem with me when I actually tuned stage 1 Eurodyne the car would stall after a pull and wouldn't idle.

@@SavageGTI Thanks my dude, yes the whole stomach feeling is gone and it feels like the car got like 150hp. i dont hear any weird noises or whatsoever though.

​@@jorrrdy You don't necessarily need to hear something, if the engine runs fine but is down on power it's within the turbo system, and if you have a low boost code on an early model mk5, diverter valve is most likely the issue

@@SavageGTI Dumpvalve was torn. Replaced but didnt solve the problem. Local garage cant find anything. He is blaming the tune on my car. Going to the tuner tommorow to undo my chiptune and my pops and bangs. see if that works, probaly not. but oh well...

@@jorrrdy After doing a pull, if you put it into neutral does the car stall?

+1gsrtom without boost it feels NA slow. I drove it like that for a month so when I got boost it felt like a new fast car.

+greezmkey84 payen it doesn't matter what fuel or what power you throw at the car. If there is a leak in the turbo system you will only make what goes through the throttle body