Vw Tdi P0234 Overboost 

Very very wrong procedure to cleaning turbo finz,,,,

That's what you call a mechanic,not just a parts changer; i've been like that too,all my life; thanks for taking the time...

i like how you have time to show the viewer how to save the picture to the computer ,,and very easy to understand your explanation ,,,,hope to see more of your uploads

Now this is what you call a mechanic ! not just replacing parts, well done thanks for sharing.

You are a turbo hero for me! Thanks for sharing this quality content!

You can even explain the computer stuff procedures very well. You are a natural teacher, congratulations!

Brilliant and informative video :-) Thank you for taking the time to show us this :-)

Excellent video , most informative one I’ve come across yet , I’m about to replace the whole cartridge on a turbo and I’m going to give your splitting technique a go ... thank you for sharing this!!

After i wached your video i took my turbo out of my car and i cleaned it .My car was overboosting like the one on your video.Now the car is runs perfectly.Thx for the info.

I've got one of these turbos which stopped boosting altogether. Had been meaning to take it apart and this has really helped set me up for whats needed. Cheers!

Excellent! Thank you for taking the time to make such a clear and detailed video on this procedure! My TDI has a notchy turbo actuator lever, the vanes aren't completely stuck but definitely gummed up. I have done the oven cleaner treatment a couple times and it works well for a short while and then becomes gummed-up again. I need to pull it and do a proper disassembly and cleaning and your video has really helps me prepare for that. Thumbs-up and subscribed.

Damn !! Love these videos, pure mechanics clearly described and executed !

Hello from Morocco...retired and starting a VW pre owned business in Fez. I have a 05 Toureg... And rebuild/clean turbo vid rocks...thanks LW

thank you so much for showing us how to diagnose the N75 and VGT actuator.. I'm working on a P0299 right now for my 05 Passat TDi BHW, and I'm at my wit's end.

loved the video man, you go into the perfect amount of detail, i really enjoyed watching you take the vnt mechanism apart... will be trying it on my channel sometime soon with my tdi audi.

Excellent explanation of what is the issue here and how to sort it out, I will definitely now be able to sort the problems with my car, many thanks 👍

Best detailed video on RU-vid, thank you for sharing..👍😁

Excellent video! Very informative, and in depth. I'll be troubleshooting the overboost problem on my 03 pretty soon, but I'm sure it's going to be the same as the customers car in the vid just based on the high mileage. This vid has helped tons. Thank you

Keep up the good work. All those tips even the smallest one matters!!! during our own DIY attempts!! I Thank You with my subscribtion and God bless.

U helped me again ur video are 3 years at fuis point but I am benefiting after these years sir i have been looking for this this on Internet but didn't get until now

Brilliant video. Thank you for taking the time to make and share it. Helped me out alot.

Great video. Thank you. Trying to build up the courage to do mine. Just scared of stripping the manifold to cylinder head bolts.. Have watched pretty much all of the vids on how to do this but yours is the most informative and realistic...Thank you

Excellent video, answered all my questions. I had a waste gate stuck open. Thanks

I'm glad I watched right to the end before I made a comment about not checking out the turbo while you had it out!! Great video.

Excellent video mate, got the same problem with my Vw B6 Passat, Will be cleaning my turbo very soon

Big thanx from romania your video helpd me alot and i manage to fix my turo on audi A4 from 2003 by myself ath home love your videi thanx again and god job very helpful your video , your helpt me to save alot of mony

brill video. i now know my turbo is not the issue. keep up the great videos

Great video, actual diagnosis with examples of it rather than just changing and saying what the problem was

Great video. Did this, gained skills and fixed my sticky vanes. Golf mk5 160k miles. Replacing turbo costs more than car is worth.

Thank you so much for sharing your knowledge. I just serviced my Garret GT2052V from my Nissan Patrol ZD30DI. cheers from. Colombia south America.

Just came across this video, really well done, excellent explanation. I think my Mk5 2.0 TDI Golf has this problem, it's done a lot of km's and the last 18 months has been very short stop start distances with the engine hardly warming up. Engine light came on this morning with an "Emissions - Garage" warning. I hooked up my diagnostic scanner and got a DTC P0234, which is turbo overboost. So this video has been a great help, thanks for putting it up.

I'm not going to attempt this myself as I possess none of the skills required to adequately complete the job. I'm just happy to see it explained.

you really explained everything in detail..thanks bro! fr PH here

Thorough and clear explanation in overall good video. Thanks

Our 2014 Crafter (120kw) has a similar intermittent overboost problem (code 023400). Thank you so much for pinpointing the proper diagnostics - we should be able to figure this one out now.

Perfect, I was looking for video like this, great job and description! Tomorrow my turn :D Thanks!

A Great video showing exactly how the variable vain turbo functions or in this case did not function... excellent thank you enjoyed it tremendously, wish you were my mechanic.

Seni defalarca kez tebrik ediyorum. Çok iyi , çok faydalı bir içerik . Teşekkürler.

Just the BEST. Brilliantly explained. Thank you so very much. 👏👏👏👏👍👍👍👍🙏❤

Great video. best on here with this type of turbo. thanks for sharing

Wow 😮 good video I have boost problem on my Audi and tnx to you now I know what to do

Brilliant video. Liked! I tried the Mr Muscle oven cleaner trick a few days ago, so I'm hoping that may help. It certainly did free up the actuator a lot.

Brilliantly explained,thank you for this info.

Very good video. The problem is often to R&R the damm turbo,the repair is easy by comparison; And here is lesson learned when you have a variable geometry turbo (means with those "11" moving small wings/vanes): Do a varied driving--- if you do city slow driving, find a stretch to floor it ,every hour or so; if high speed driving or towing,let off the gas often,to get those vanes moving; The first case tends to avoid the vanes getting stuck closed,no boost; The 2nd case,them getting stuck all open ,causing what we saw here,overboost; The worst invention ever for diesels,the EGR valve is mainly to blame for that problem,it makes the engine constantly re-ingest its own vomit,its own smoke over and over; If you only saw what the EGR can do on older cars,to clog up intake manifolds, throttle valves,cyl.head intake tract,valves, rings,etc to the point that the engine is choking and barely runs; it then pollutes *A LOT MORE* then if there was no EGR in the 1st place; this mainly due to the rings getting stuck with all that muck,and the cat.having seen better days; it's a tough decision bet. breaking the --LAW-- and eliminating --EGR-- (not easy on some cars,it turns the CEL on) or keeping it and facing those consequences...

When using the wire brush on the ring, it's a good idea to use it on the outside edge of the ring too. There are three (I think) raised portions that hold it in place and they are common places for carbon build up to cause sticking. Once reassembled the whole vnt mechanism should move with a VERY light touch, even gravity should be able to move it.

Good info here!

Oven cleaner method saves alot of time and work.

Great video. Holding down the alt key while pressing the printscreen key will just copy the active window to the clipboard so that when you paste it into paint (or whatever) only the graph will be there so you won't have to crop the screen pic.

A+ tech what a G cant wait to get that code.

Very informative and well made video, thanks!

I’m learning, excellent video

Brilliant video which explains in good detail.

Thank you so much for the insight into this type of turbo. I think this is what's wrong with my 320d unit. Rattling too, so it leads me to believe the actuator arm is loose in the ring also. I'll be attacking this job shortly!!

Thanks for the mint video.. this definitely helped a lot of people

A bit over my head and beyond my skill-set, but a great educational video. Thanks.

On windows you can also use the snip it tool, this allows just to copy the part of the screen you want. Good video. You can also cut down on that screen flicker by playing the refresh rates on the computer and camera.

Great video, i learned a lot. Thank you very much :)

Excellent video

well done from zimbabwe

excellent video!!! Thank you so much for the how to!

Thank you very much for the great video!!

Good video. Looks like a Garrett GT VNT. Seen a few of these sticking or seized vanes on Ford Galaxy/VW Sharan TDi mpv in the UK. This issue can throw up an air mass sensor fault even though nothing actually wrong with the air mass sensor - it's just sticking vanes affecting air flow (and boost).

Brilliant!! So good to see a professional at work with good tips in real conditions, rather than some dumb kid fumbling around with zero technical knowledge. Most excellent production.

A must video for everyone who has a tdi

Woah, you guys know your shizzle. Nice video.

Great information. One faster way to save the graph image is using the Windows Snipping Tool for computers not using windows 10 (Start>All Programs>Accessories>Snipping Tool), in windows 10, use Snip and Sketch (Windows Menu> Type Snip and select the Snip and Sketch App).

thanks for your information and efforts

Hero for me too Thanks for all the information

Thanks very much for the video. Very helpful.

Thank YOU. Good video and information !

Nice video! very detailed! thanks

I don’t have a problem with the turbo but I was looking at timing and this video came up so I watched it and yes thank you a lot of good information always wondered how those veins work. Thanks again

thank you for a very informative video.

Amazing video!!

thank you for great detail video

I ran into what may not be common problem. I found the plate in the exhaust housing below the vane plate had rust developing under it. This was raising the plate just a few thousandths of an inch. So when I tightened the vane plate it would cause the vanes to stick. I found the sticking was gone when I loosened the screws holding the assembly together. So I removed the plate, cleaned the rust off and it works perfect now.

Many thanks. This video helps me.

Thanks 4 videos nice one 😀👍

Very interesting video.. my turbo wasn't working and the mity-vac on the actuator wouldn't even hold vacuum. removed it and replaced with a new one. My vanes were notchy but I think it's because they haven't been going to the limits for a while so I'll try the Italian tune-up on it. I'm getting 15-16 inches of boost and the car feels like it did back in the day. I dissected the actuator and it was all rusted to the point where the diaphragm had a hole in it. Not sure how these things fill with water but that's their achilles heel. Thanks for posting!

Bonjour, très bonne vidéo, très bien faites et expliquée !! Hello, really good vidéo, really good réalisation, good explication. Thanks for that !!

Awesome video!

nice video !big thumb for job!

well done, thanks!

Awesome video.

A tip to save parts of screen quicker, use snipping tools, they are already installed in all windows starting from windows vista all the way to windows 10, it allows you to capture the specific screen area that you want without needing to use paint.

Very helpful... thanks

Nice video very useful sir

Nice job 😀👍👍👍

Very good video! Very professional! Liked and subscribed!

Entire reason I run water methanol injection. 32cc nozzle ( smallest available) Keeps everything clean and healthy

Have u ever had to replace a turbo that's failed ..like filled the intercooler with engine oil also the exhaust system...watt direction of repair would u recommend thks ..awesome video nice to see a mechanic at work

Excellent.

Mr Proper cleaning perfect 😂😂

Learnt a lot

THANK YOU VERY MUCH!

Thank you sir.

Good Job !!

Brilliant video. Most mechanics would have just replaced the turbo a proper mechanic repair’s. Just ignore any criticism.

Cool vid. Instead of using Print Screen and editing the pic, you can use the Snip tool and capture only what you want and save it directly to a file.

Spot on thanks