How The 2.0T Diverter Valve Fails 

Dude, from one Professioanl Technician to another I extend to you many many thanks yous. I have a 20 year old Passat 1.8T and a 2008 Jetta 2.0T FSI and whenever I VAG my rides and see an issue I always go straight to your channel... I gotta say both engines have been flawlessly running in reality... I got my 1.8T from a retired doctor in the city and she only had the VW dealership ever touch that car so it was squeaky clean inside the engine and I'm running Rotella T6 in it and it LOVES that oil... My 2.0 has had a few issues like this one here but it's been a rocket on wheels and never left me stranded. Both cars now have over 350,000km on both clocks and the run perfectly. I attribute a lot of their good vibes from being able to save sooooo much diagnostic time by going straight to your channel... again many thanks from up here in Canuckistan!!

I remember doing diverter valves and pcv valves all day when the 2.0T was released. At least they're easy cheap fixes.

Fcuk man. Every part fails on 2.0 tsi. shoulda seen his vids before my brand new tig

Of course I driving around wondering why my car accelerates like a grocery cart. I sure hope this is the issue

That explains my boost leak and CEL code p0299

Just got a stage 1 tune flashed on my ecu and after one 2nd gear pull WOT hit redline hard on accident and now I have no boost. Ohmed out my diverter valve at 14ohms but when you push the Piston open and closed it never opens the connection on my meter it just reads 14ohms, shouldnt it read open once I push in the Piston?

The first 3 digits is a good indicator of family of DV's 06F = diaphragm 06H = piston (there is a rev C that doesn't have the cage of the rev D)

hey i drive a 2008 audi a3 2.0t fsi. i do not have a check engine light, but im loosing boost somewhere and its causing a jerking sensation upon acceleration. a mechanic buddy of mine said hes certain its the diverter valve. could you confirm this as a known issue or not? Thanks.

I had to replace mine with the 'D' revision before getting my tune completed, due to how quickly the 'C' type (stock on my Mk5 GTI) can fail. Great video, as always.

Failed exactly as described. Glad I saw this video - saved me hundreds maybe thousands on this repair!

Hey I installed the GFB DV+ recently but never got a new overall diverter housing if that makes sense. And I noticed a P2261 code. Is it possible for the black plastic portion of the diverter that I didn’t change to go bad?

I never had a CEL but I just replaced my old DV with Revision J and now my car feels normal again; got back low end power and pulls hard like it should.

Oem revD jest nieszczelny na stage2, najlepsze rozwiazanie to mniej trwały ale szczelny revG.

I always enjoy your videos.

My Vw mk7 is dumping oil into my turbo.. what can cause that? I replaced my pcv valve and it stopped now it’s doing it again. It’s all white smoke ... ? Help?..

I have a 2007 Audi a4 with the 2.0 tfsi and when I go full throttle, the power comes in and out almost like the diverter valve opens and closes every couple hundred RPMs

What would cause the valve to be stuck removed all screws and when trying to pull it out it’s stuck. It springs out a little bit but won’t come off.

Great info! Wife's '08 Eos just threw a P0299 code today. Glad to see the fix is relatively simple. Just a couple questions: how does oil get into that area? Is the turbo lubricated via the oil-pan? Just seems odd that oil would leak out of an intake area. Thanks.

i have a mk6 gti, tuned, thought i had a boost leak cause i started to hear a weird sound, lost about 4 psi. (was pushing 20.5 psi) now getting about 16. but no check engine light. and the turbo sounds normal till its under extreme load. ie pedal to the floor lol. could that be the diverter valve? no loss in fuel economy or anything else. car drives normal. **DSG automatic** sorry.

Can the diverter valve still be bad/torn and not have a check engine light?

P0101, I’ve done almost every thing I can with the code. It bucks, hesitates, misfires. Implausible single code. Would a PCV failing cause this or the n249?

I never had P0299 code but suspected my turbo diverter valve was damaged, and knew it was the old version of the part. When I took the old diverter valve off I suspected the rubber diaphragm would be torn like my PCV was. BUT it was fully in 3 pieces when I finally finessed it out. Glad I got that fixed its driving much smoother. Now to get those dirty valves cleaned...

it broke on my stage 1 mk5 gti, thing pulled like a 1.2L and had a lot of turbo noise but no codes or lights whatsoever.

Just installed a replacement diverter value on my wife's 2010 Passat wagon. The orange diaphragm was ripped badly. Went from low boost code and frequent stall outs on start up back to full boost and much smoother running overall. Thanks for the great video!

I fitted the D version a week ago thanks DAP , to replace the old C version due to a lean code coming on all the time after 50km or so , though diaphragm was not torn ,changed any way and finding the newer version has made the engine less perkier ( less initial torque ) :( . Im trying to under stand how a cone at the end of the "D" version With HOLES is suppose to seal with out a seal as with the old "C" . ... can some one explain . engine check light still coming on but earlier than before ..after erasing codes. Frustrated...

hey bro. I have an 05 a4 at my shop with the 0665/po299 code . haven't messed with many turbos so pardon any dumbness. I also had a 300 and a 301 in history. definitely gutless first test drive. and big gap in my charge values. I pulled the valve and see no tear but oil poured out of the plug. cleaned everything and put back in. then it misfired bad on no1 on next test. pulled plugs and all are dark but have white crud build up . definitely burning oil. with a fresh set of plugs it ran better and boosted once , charge values even at 1600. then I romped on it .. blue and black smoke bad. shut it off and restart 10 min later and Belched a building sized blue cloud. oil in tubing before throttle body, but also hisses and runs rough when I pull the oil cap off. I'm thinking I have turbo and pcv issues but wondering If u have any other testing advice before I scare the customer into trading it in

hey charles P0234 Limit Exceeded (Overboost Condition) what will cause this thanks

Humble mechanic what are your thoughts about gfb dv+ ? Is this finally the best solution for both tuned or untuned cars?

Guys I'm freaking out the car is making a weird whining sound all the time when I'm on high rpms I'm just afraid is It the dv or the turbo? Mk5 gti

At around 3:20 in this video, you mentioned cleaning the diverter valve connector, if it's got oil in it. My diverter valve is leaking and I'm going to rebuild/upgrade it with a GFB DV+. So my question is how would you clean it and what would you use? Spray is down with electronic contact cleaner? Use some sort of degreaser? Something else? Thanks in advance for your advice.

Thank you.. This channel is a stress reliever..

I keep getting lag and after lag I get cloud of smoke. Could a diverter valve be my issue?

how can I test this valve, can I put a 12 volt and see if its operating or not?

nice i just had problem with my underboost so this is possibly is my problem ...

Cough.... Can I block it? cough..... ;) stuutututuuu

could I have this problem without a check engine light ??? audi b7 quattro.2.0

Hey! How are you doing? Can you check out the last 2 videos I posted in my channel? my Tig is making a weird buzzing noise, trying to rule out the most common EA888 issues.

Bad dv throw p0300 codes??

Would this cause P0238?

2016 VW Jetta GLI SE Gen6.5 2.0T. Stage one plus, cold air intake, muffler, aftermarket diverter valve. After installing the diverter valve, we no longer have a working turbo as the wastegate arm does not move correctly. Help???? Engine code.

My 06 gli just started lacking power, strange noises when accelerating at higher rpms, etc Figured id go ahead and remove and inspect the DV... Its the original dv and the diaphram is completely shredded. Trying to figure out what had caused it to shred, because the car is stock

Excellent, Thank you.

I could be wrong but it feels like my mk7 GTI has lost power. Also I can hear the “pfffs” sound very clearly when letting off the throttle while under boost, and like you described it seems louder (in fact I used to not hear it at all, or maybe I wasn’t listening out for it until now). However I don’t have a CEL?

Whats better D or G? Because i have an golf 5 gti dsg edition30 and stage 2+ 370bhp and 550nm of torque. I have turbo flutter between 2700 to 3800. Like diverter valve on off on off on off. You know? My current valve is D. And i have ordered G. Some people tell me that this D revision have boost leak from brand new. Not much but it is there. What happend if i change the spring or stretch the spring on this diverter valve? For more strong spring. Sry for my bad English, iam German :)

My 1.8 turbo said I needed knock sensors.. they seemed to fix it for a week . Then it was falling on its face again.. then the two large vacume hoses kept blowing off. When I got them to stay it blew the airbox off .. what is wrong with my 03 cabriolet bug

I took mine out today expecting it to be an older revision as I have a terrible boost leak. Was surprised when I took it off to see it was a revision D, which sucks as I wanted to see where it failed and can’t really tell.

Wondering if this is the same part we need? We have a 2014 VW Jetta, Trouble code P0045 Turbocharger / Supercharger Boost control solenoid A Circuit/ Open Your time is greatly appreciated.

2007 Passat in the shop now. 104K mi. Diverter valve replaced, but no boost felt at all and still throwing the P0299 code. Also hearing strange rattling sound with power loss. Sounds like driver side rear of engine. What now?

Has anyone else had this weird Part Number issue? Sorry if it was already addressed I haven't seen it anywhere... Got an underboost engine code... P0299... Common fix is replacing the turbo recirculation valve (N249). Checked the service manual and it checks out (N249). Called the dealership and got a part number. Didn't want to wait for shipping so i picked one up from an Audi dealer. Part number matches but it's not the right valve, it's the waste gate valve which the service manual labels (N75). Searching part numbers on Amazon Etc seems to confirm confusion between the two. Is this a thing?

I have a 2006 Audi A4 with a check engine light turned on and found out it's a P0299 code... My mechanic wants to replace the entire Turbo saying changing the Diverter valve may not solve the problem and wants to replace the entire Turbo system. Any ideas? The diverter valve costs $50 and labor. Turbo will cost a lot more obviously. HMMM

I knew I should have came here first for advice. I tried googling based off my P2261 from my Ross-Tech logs, and had a hard time narrowing down what the failure meant. Now I know what tools I need, and what to look for when I finally get under the car. Thanks!

Is it possible to have a faulty diverter valve and no CEL? My gti feels sluggish. I tested pcv system by opening oil cap and checked bleed hole for vacuum and its good. DV is my second suspect but no CEL

Hi my car golf gti mk6 at high rpm 6000 have misfire below 6000rpm no promblem spakrt plug coil pack injector is good so i hope u can help me

My car have a P0299 boost pressure regulations - control range not reached fault cose. Can it be the diverter valve?

I replaced the stock with an upgraded piston dv a few years ago but now I got a check engine and I feel a difference, Just ordered a new one. hopefully It doesn't break fast.

Hello, i have p2099 error. And the pressure keep in 1000psi. (actual), when the Specifc is 400psi. When i dirving the presure specific increase and the actual increse only the presure specific exxed the 1000psi. Is this diverter valvue problem? I Have Tiguan 2011. Many Thanks. Excelent Video

I can’t get my golf 7 R up to 4000 rpm steady when I want to launch it.. It only goes up and down between 3600 and 3900 rpm. Do you think this has anything to do with my DV?

Hey so the other day I installed a DV Spacer for my Mk5 Golf GTI to get that psssst pssst blow off valve type of sound but it doesn’t work at all. I don’t know what’s wrong. I checked my DV and it was alright (no cracks, but had some oil leaking). I hope if I replace my DV itt would work this time but if not then I give up

My 2012 A5 is running great and the check engine came on a month after the original code said deverter valve and was reset how soon should it be replaced if is running great and the MPG are still the same ANY IDEAS,Thanks

Thanks for another great video. Do you think it's possible that oil in the DV connectors could cause a CEL and throw the P0299 code because the oil caused an electrical fault? I ask because my CEL has turned on 4 times in 6 weeks. I've replaced the PCV, the boost sensor, fixed a boost leak, inspected turbo and my car still got a CEL. So today the mechanic changed the diverter valve because there was oil in the connections. I'm just afraid of the CEL coming back on because all that's left is the turbo but the car runs smooth as per my RU-vid videos. If I'm reading this service bulletin correctly, a diverter valve with oil in the connectors can trip the CEL with a P0299 but I wanted to know what you thought regarding that as a possibility. I've run out of things to fix with the P0299.

Can you tell me what the aluminum box, with oil and coolant lines running to it, in front of the battery is in a 2006 VW Passat 2.0T?

Switched out for the pierburg..think that's spelled wrong but phonetically correct. Anyway switch yours out with that and never see that p0299 fault again.

Im having a issue if someone can help me? I have a 2016 Gli 2.0 tsi ,Im not tuned . I have stock Downpipe but at the lower bend i have 3" to a resonator and then to the tip. I had an intake on but i took it off cause i thought mayne it was part of the issue. Ok so when im normal driving i smell nothing but if I'm going Say 20 or so and floor it and then when i let off it takes a second but the smell of something like sunburnt gas and exhuast fills the car. Now I thought maybe the DV was going bad but i have no CEL on and car seems to be running fine. I. Right at 31k miles on the car and im stumped.

Hi Buddy my names will iam from the UK, I have a whiserling sound on my s3 8p when I take my foot off the gas. I just spent a lot of money on a cat back exhaust and a stage 2 re map but on my way home the car started to misfire and the Dyno diagnostics test read out cylinder 1&3 misfire and oil pressure cam up on the computer now the whole engine shakes when I start it up.is this the pcv? There's oil down tne right hand side can the pcv and the diveter Vale causeText you copy will automatically show here this shit sandwich without the bread has caused my car to shake like shit and basickly sounds like a bloody scooby wrx Help me out buddy kind regards William.

I also have a high pitch wistling/screeching sound when I accelerate...sounds terrible.

Hi, I don't have the CEL but I am throwing code 000051 on my VAG-COM which is the turbocharger bypass valve malfunction/ open circuit. My car which is a 2.0 tsi is showing some of the symptoms you mentioned above about the 1.8 with the loud sounding like it has a blow off valve symptoms. Just wondering if you think this could be electrical or what I'm totally stumped.

I have a question if this part is failing does it always throw a check engine code ? My gti feels like boost level is low and I’m wondering if this might be my problem

I unplugged my connector and a bunch of oil came out and when I removed it, it had no tears. And I have a p0299 turbocharger under boost light. Do u think this is the cause to my check engine light? It still build boost fine. Peaked at 15 psi the held steady at 10 psi. Also I have an Audi A4 2.0t B7.

3:42 you gave the answer is was looking for for months!!! I have a 2016 1.4 tsi and i do sound like i have a blow off now(loud pssshhhh) + the hissing sound like air is coming out when i hold the gas after the purge. So if i understand , my diverter valve is broken..but i dont have any lights in the dash that tells me that...thought the exhaust line had a hole in it or something.

Hey this will help me BIG TIME my Peugeot 308 cc allure: my Check light under boost comes on when I hit 100kmh and have to Restart my car to Reset my boost

Can the Diverter Valve cause p0087 fuel rail/system pressure too low and p0172 System too rich bank 1 ? Any experiences

My `06 Audi A4 2.0T threw repeated under boost codes but my diverter valve diaphragm wasn't broken. The dealership technician told me I needed a new turbo(even though I had no drivability issues). I installed a GFB DV+ and the codes never returned. The car is also MUCH more fun to drive. Win-win.

I removed the diverter valve from my MK5 today. That top bolt was a btch to take out.

I have connector c is that ok

I have a 1.8t Jetta mk6 ... I have no check engine light but I recently swapped coils & now my turbo spool sounds significantly louder & a bit of fluttering with a bit more of a bob noise when pressure is released. Is this in fact the stock diverter or is there any way to diagnose?

Can the diverter valve be in such bad shape that I get almost no boost until high rpm? The turbo spools way faster than it should barely pressing the gas and is pretty loud but the power just isn't there. I just picked this car up and fixed the terrible multiple misfires and it was running great for a few days now it's doing this. I am very mechanically I just have little to no experience with Volkswagens. Any help would be much appreciated

So today I was driving my Volkswagen CC tuned and bolt on and when I shifted I felt the transmission jerk hard so I stopped at a red light and there was a light smell of fresh metal/plastic and when I tried to go on boost I heard this very loud psstttt noise, I have a Dv and it sounds nice and loud but this sound was different it made my heart hurt, what can it be

My touran 2L diseal asv has a stutter/flutter when I let off the power do the diseal suffer from something like this ? It also suffers from a shake at idle which I can see to get right and when it's first started in the morning I engage the clutch and it jumps jumps as if I'm wheel spinning lol then won't ever doing again all day but clutch flywheel everything seems fine so I'm suspecting on the lines of injectors or fuel temp sensor 🤔 hope you can shine some light onit 😅

Hey. HM so I got a 2016 Gli. Today I got the EPC light on the dash . Pulled up the scanner and got a P0299 code. I’ve noticed there’s some oil dripping on the passenger side. Wondering if there’s any upgrade you would recommend?? Rather than just replacing with another oem prt

I've a 06 vRS Octavia, this is original at 179k miles, I'm going to be changing it as it has to be one of the issues it's throwing up

I need help!! Please I have a 2008 Volkswagen gti 2.0t, and I have the underboost code and a system lean, would the diveter valve be the problem ?

THANK YOU THANK YOU!!!! Just bought a used CC and got an engine light a week later! P0299. Part on the way and replacing TODAY!

I have an 06 Passat. Does this part work if I have a overboost condition? Help please

​​​​​​I removed diverter valve and it was new piston type valve. One thing I noticed was that when i removed valve i saw spring was seperated from piston. I pushed it back in position but slight movement on valve popped the piston and spring out again. Is this normal behavior or DV or mine is broken

Its unusual but I've had 2 that failed electronically. Can check the resistance (ohm) of the windings to verify.

Have you seen these cause issues on the new beetle? I have a 2015 2.0 turbo that intermittently blows the fuse that powers the diverter, and a host of other components. No boost codes, I can get at the connector , but I cant get it off to check for oil. Dealer wants to sell me an entire turbo.

I wish I would have found this video months ago!!! Thank you for all your knowledge and experience

is it possible for me to have no code and have this problem? when i foot to the floor the car boosts but bleeds off from 15 to 10 psi then its like on off on off like no boost to 7 psi on off like a kid flicking a switch if i let off it will boost fine and drive fine,

I change pcv valve kit and dv to S3 8p. Now i have epc light on and p0190 fuel rail and p0343 camshaft position sensor error codes. Wtf? 🥹

for golf v (2005)2.0 tdi 140ps 103 kw where is this located?the erg valve is in front of the engine

I'm running TFSI 2.0 in my 08 A3 and trying to figure out why the engine falters on transition from running with throttle mostly closed (as in rounding a bend) and then gradually adding more throttle while exiting to the straightaway. Is that a Diverter Valve issue or something else? No codes have been thrown to help hunt down the cause. Manual transmission, clutch engaged throughout the transition. BTW, always find your videos valuable. Thx for your advice.

I have a stock 2000 b5 a4 1.8 AEB, does my cars ecm need the DV to be recirculated to idle normal?

Feels like mine is failing on my Audi. Does anyone know where would this be located on the 2l tfsi engine mk2 audi tts? Would it be accessible from bottom of the car?

Lol I broke mine and tell everyone it’s a BOV😂😂😂 Becuz I could buy a real one . 😅

thanks for your video my vw golf gti mk5 had a lean error code . I changed the diverter valve with a new one and my car drives like a dream missive different

Do you know if the d is still the most current one or j? Thanks

My revision D broke less than 1 year of use stock boost levels..... whyyyyyy

Hey humble mechanic what do you mean tuning the ecu if you install a blow off valve instead of a DV valve

Can i have this problem with p2563 dtc ?

I’m getting a low turbo boost code any advice?