HOW TO CLEAN BOSCH INJECTOR NOZZLES LIKE A PRO | 2021 ULTRASONIC CLEANING DIY

**MUST READ**
Hi guys here's a DIY guide on how to clean your injector nozzles if they're clogged or if you simply want to add this method in your routine maintenance. We recommend cleaning the nozzles every 100,000kms and while you're at it, replace the injector O-rings and Copper washers with new ones as well. It's also best to clean the injector seats on the cylinder head before you put the injectors back in. There are injector seat cutter tools which you can purchase online.
Remember: This is not a certain fix on faulty injectors. If your injector is stuck open / closed, doesn't fire or actuate when energized, excessive back leakage, It's best to consult a professional.

[@leetbawden4480]

Best film I've seen on these injectors. Exactly what ive got to do, so thanks from here in Cornwall 🇬🇧

[@btdgarage]

Thanks! :)

[@PopaAlexandru.]

The exposed procedure is wrong.

[@felipeuk12]

@@PopaAlexandru. why is that?

[@PopaAlexandru.]

@@felipeuk12 For example, the lack of a basket in the ultrasonic bath... one error is enough for the whole process to be compromised. And there is at least one more error: the use of thread brake.

[@felipeuk12]

@@PopaAlexandru. well spotted 👍

[@JoelHoekstra1]

One tip from a guy who's job it is to actually recondition these injectors...please don't put loctite on the nozzle threads! When I inevitably get your injectors to properly rebuild, it sure makes it a lot easier when the nut comes off.

[@winstonbrown1516]

This video by itself gives us DIYers the Balls to do these, "Super Technical", "Garage Equipment Only", "Mortgage Expensive", jobs ourselves. SUPERB video!

[@btdgarage]

Thanks!

[@albinklein7680]

Please be careful. I absolutely don't want to discourage anybody from fixing their own stuff, but I own an engine machine shop and I rebuild engines for a living. I have to fix quite a few engines their owners destroyed with home-built injectors. If you have an ancient cast iron boat anchor, you can get away with a hobby botch job. But when it comes to direct injection high performance engines you will melt your pistons in a blink of an eye if you mix up shims or plungers or if you install collars backwards.

[@bspscrolls666]

And someone told me those injectors can’t be opened, told him they were assembled at some point so obviously they can be opened and boom here is the video that’ll save me thousands of Namibian dollars in the future.

[@TheOnlyRaceEngineer]

best filming on injectors. No BS no Nonsense. straight to work. satisfying as hell. Great job @BTD Garage

[@btdgarage]

Thank you :)

[@earthlingak]

If your copper washers get stuck down the bore I welded a thin stud extractor onto a thin extension and it came out immediately after hours of scratching my head. Very useful video. Thanks.

[@ianjones4116]

Washing up bowl and wifes Vibrator works just as well. If you dont have access to Ultrasonic Cleaner.. Enjoyed the vid mate,, thanks for taking the time to make it. 😀👍👍

[@davidelliott5843]

Soaking in solvent overnight cleans the internal parts. The tip and screw cap will hardly be touched. A strong solution of caustic soda (lye) NaOH will burn out carbon but won't touch steel. It will dissolve aluminium, zinc etc (bad for brass) but these are not present in the nozzle area.

[@thebeesnuts777]

Great video not only sharing knowledge but giving others the ability to eat 👍

[@cedric60666]

Great tutorial, well prepared, well shot - with the camera focus on the interesting elements, not trying to adapt all the time. Thanks for the recording quality !

[@btdgarage]

Thank you!

[@davidelliott5843]

Loved the filming and the text but not the musak. Next time, please speak (narrate) the instructions along with the written text.

[@ehmrsraja4548]

P0

[@nitinmisra6747]

👍 Great video.. Very effectively shot with clarity. The best part is no bla bla.. Man you have nailed it.. The best ever video on the injectors. Keep up the great work..💐🌷

[@btdgarage]

Thank you! :)

[@hanruobing6924]

We are manufacturer specialized in auto and marine diesel engine parts since 1952. Our main parts are EURO II system: plunger, nozzle , delivery valves, head rotors, repair kits, etc. Common rail system: Injector complete and injector spare parts for CATERPILLAR, DENSO, DELPHI , BOSCH, SIMENS, CUMMINS, etc. If you have any inquiries, pls do not hesitate to contact me.

[@davidelliott5843]

Carefully examine the injector seats pithing the the cylinder head and recut the surface if necessary. Extracting a stuck injector (caused by gas blowing past the copper washer) can be a real struggle.

[@ttk6417]

Another challenge in my life to do this injector cleaner. Tq

[@deleteduser3749]

Great video. Interesting that these are from a Hyundai and use a shim. My 2014 328d BMW has what looks like a larger spring and no shims. I just cleaned mine because I got a fault code for my #3 injector. BMW ISTA says throw away and replace with new injector! Well, after cleaning all 4 injectors nozzles, swapping #3 & #4 injector cylinders, reprogramming the computer, and clearing the codes, the fault has not come back and the car runs great. This is definitely a great practice to add to your maintenance schedule. I'm just wondering why my original injectors lasted 130,000 miles ( and failed due to a bad CP4 high pressure fuel pump) while my Bosch replacements got clogged after 1 year of service? Bad fuel? Hotshots additive? Towing 3,000 pounds of wood flooring?

[@colinaglae9753]

Thats a super video, on cleaning of diesel Injectors. Very educational!!

[@btdgarage]

Glad you liked it!

[@DeGier]

Because of this video I started cleaning injectors really a clear video this is how to take everything apart and luckily earn good money with it!!! still looking into revision where I can find parts so far never had any complaints and no I'm not a garage I just do this at home as at work Thank you for the video

[@raywilson3166]

Good man I like the attitude

[@JohnDoe-qk4wj]

Fantastic... no bla bla bla.... efficient and really perfect, thanks a lot

[@btdgarage]

Thanks!

[@tomballew2390]

Awesome man! And that is probably the best instructional video I’ve seen on any topic! And I have the confidence now to tackle it. Thank you very much!

[@btdgarage]

Thanks!

[@kenshamrock3337]

I am not sure i will do this but if they are Sticking after new seals i will, Very cool vid my Guy. Also you got the steady Hands of a surgeon.

[@btdgarage]

Thanks brother!

[@rurallife8289]

Ang galing mo talaga sir. Ipapa rebuild ko jan ang turbocharger ko.

[@beemergb]

Simply The Best ! Thank You For Sharing !

[@maddiehorsfall7836]

Brilliant video/tutorial, can you tell me how many jets should come out of the injector when the all holes are clear?

[@brucekunakey3635]

Excellent tuto. Many thanks 👍👍👌👌. Now ready to do the same with my injectors (and then, as David Elliot said, recut the surface of one seat as heath and flashes passed the copper ring 🥴🥴). Tribute to BTD.

[@btdgarage]

Thanks! :)

[@cransaftvalve734]

5:18 Perfect atomization of the nozzle.

[@faroukkhan6777]

Nice video thanks 👍 keep up with your great work

[@3kkk514]

Very good tutorial video👍

[@earthlingak]

Very useful video. I've just done my first injector but it only had the bottom shim. Is that normal?

[@yusrirasyid-nn8sy]

We was think this job will do by big factory only.small shop at home with good skill we can do.great thanks for this video to educated us

[@segundoantoniogarciacarrie4402]

very good video, what happens when neither of the 2 injector valves come out nor with our sound, was the problem due to water entry?

[@elrazky]

I love the video, that's exactly what I was looking for. thank you for such all around beautiful video. Questions: what kind of ultrasonic liquid did you use? where can I find the torque specs for my Bosch injector? TIA

[@texasaggie75]

Excellent job... can you do this same type of video with Yanmar 6LPA?! Thanks!

[@76litho]

Great video, what solution do you use in the ultrasonic?

[@vincewakefield2609]

Great vid, did you ever do an injector top end strip down?

[@AR63s]

Great video😊 What power was the ultrasonic cleaner? Forexample 30w or 50w? And what liquid did you use? Thanks again

[@mauricioericfalcon9546]

Ya me suscribí porque quiero limpiar mis inyectores

[@jcdragon77]

Great Work mate. I've been told it's not good for the ultrasonic cleaner for items to be touching the bottom of the tank. That's why they come with a basket.

[@btdgarage]

Yep that’s right :) I find that true for heavier parts. For lighter pieces like these, I think we’re okay

[@stanislavstankovic2155]

Please your information - what minimum power in Watts and frequency in kHz must an ultrasonic cleaner have to reliably clean the injection valves, nozzles ? Thank you for your answer in advance.

[@mihalym.6876]

Do the process is the same for high pressure diesel injectors, like Bosch using in VW group CRCA 3.0 TDI engine?

[@mrmarcuscars2072]

Great film. Just what i need to know for my fiat Qubo 1.3 multijet. 50FT is about 68Nm?

[@hombremirandoalsudeste4322]

Mate, I’m stuck on a rural town and can’t get anyone here to do this job, after watching your video I’m going to give it a go, thank you

[@paterix79]

hey mate, interested how did you manage? all went to plan? (never mind the background trap-beatz :)

[@hombremirandoalsudeste4322]

@@paterix79 car is running perfect now, I only clean the injectors externally, didn’t pull them apart as can’t get the recalibrated where I live, all the copper washers replaced, o rings too and used new stretch bolts, car is purring now

[@sarfrazali568]

No doubt you are a Pro Liked the quality and standards

[@btdgarage]

Thank you

[@josephochoa6870]

how did they work i feel like putting it on the vice like that can allow the body to twist/ warp the two flat spots is where I would grab it

[@marcucimpan5679]

Your the best, very very good video.

[@nexpro6985]

Excellent. Are the shims ok either way up?

[@vaccapi100c]

Does it need calibration or something after this cleaning? I want to do this process at home at my Opel 1.9 cdti .

[@MrVM41]

What solution is in the bath? And what's the liquid are the parts in for assembly? Thanks

[@dumdum778]

Very helpful. Thank you.

[@nathaniel.h7124]

Great tutorial!👌🏻 after I did this on my Volvo v50 2.0D (Siemens injectors) sometimes it feels like the engine is running on 3 cylinders or an imbalance around 1000 rpm You can feel the power increase and it’s running smoother! No horse powers lost but still got this problem:(

[@nathaniel.h7124]

Update: 1 injector got stuck now after ultrasonic clean probably was the injector before already not healthy replacing now for a new one.

[@cristi2886]

Never open an siemens injector if you dont have that special device to calibrate the injector.

[@daniellenner813]

​@@cristi2886 Calibrate via OBDII or do you mean mechanically? Like internal chims etc?

[@jakubwisniewski6306]

@@daniellenner813 Siemens / Continental injectors have a very small gap set between the injector solenoid and body, this gap is measured in micrometers, for your injector it is 0.3µm ± 1.3µm. You should never take off the soloenoid from a continental injector unless you have tools to measure this gap (I use an Opensystems Megatester V4). As for opening the nozzle side, you will change how the injector works ever so slightly meaning your calibration code will no longer be valid, however sometimes you can get away with this depending on how worn everything is.

[@tigermcflash131]

Nice video... Many thanks !!!

[@btdgarage]

Thanks!

[@MrMsD77]

Bello il video complimenti per la spiegazione ma una domanda dopo che sono stati puliti iniettori sono Pronto a mettere apposto o bisogna fare qualche regolazione così ho sentito grazie sei rispondi

[@frankyw8803]

Excellent thank you

[@divergent_ghost]

Should the injector body not be cleaned as well? Should this resolve noisy injectors on a toyota 1kd engine? Mine sounds like it has a massive diesel knock while driving, 200000km

[@randallbowdre8167]

Does this help cure the zero quantity adaptation faults like in BMW's?

[@robert4you2]

Which type of liquid u used in ultrasound cleaner?

[@labasvakaras9968]

Hey if I will use 68mn on it will it not be too tight? As I can’t get exactly to 67.79

[@drakeastro8131]

After cleaning, do you have to calibrate injectors wen putting em back in?

[@difsid569]

best on KZbin

[@adek330Ci]

nice work 💪

[@Steve_MFr]

One of the best vids on YT on this topic - and you even include the 50 Ft Lbs torque value! Thanks! Unfortunately the music was so annoying I shot my dog. What do I tell my kids now?

[@yzmoto80]

You tell the kids, “I’m sorry I couldn’t figure out how to operate a mute button, and when trying to shoot myself in the face, the bullet ricocheted off the mirror, and hit the dog.

[@Steve_MFr]

@@yzmoto80 awww, the rage is cute 🥰

[@yzmoto80]

@@Steve_MFr LOL… 😂…Just funning around my friend, I LOVE EVERYBODY ! Without being able to joke around with one another, what do we really have to make life a little more fun ? Other than family of course !

[@niktur3740]

What kind solution do you use. thank you

[@igorkuzmanovski5552]

Thank you for the video

[@johnmcguinness7116]

When new injectors are fitted do they need coding on 2010 volvo xc90 diesel

[@endremarosvari4998]

I have a question my needle doesn't want to go back. During disassembly it came out very easy now it seize right at the begining. I put the head back for another 30 minutes of ultrasonic cleaning hoping that there is a small dirt. But still doesn't go in. Would it be a problem if I force it? Does this need to be moving once it's assembled ?

[@stefanusmutileni664]

I’ll start a business out of this, thank you.

[@PARDS2]

GREAT GREAT VIDEO!!!!! Probably the best on You Tube! Not doubting you, but what is your source for the 50 ft lbs torque to reinstall the nozzle to base injector? thx much!

[@btdgarage]

Got it from a bosch repair manual :)

[@ephrembogale7618]

Good and quality job 👍

[@btdgarage]

Thanks!

[@PopaAlexandru.]

It works for nothing, that is, it cleans the injectors but at the same time induces premature wear.

[@danieleianniccari5344]

Se smonto solo il polverizzatore iniettore si stara? O posso pulirlo tranquillamente e poi rimontare il tutto?

[@strickos91]

Hello, thank you for this great video. What kind of ultrasonic solution do you recommand?

[@btdgarage]

Hi there are a number of ultrasonic solutions that you can purchase online. Best to use automotive parts specific which is alloy safe

[@kidda74]

Awesome thanks!

[@gdc5ind]

What solution is best for cleaning diesel injectors?

[@mehboob6666]

Do the injector work properly after Repair I have an issue with the injector of my Volkswagen diesel car Should I go for repair or replacement

[@MG041987]

What is an Ultrasonic? How it works? Can you explaine? And how long time need to wash injectors? One hour, two??

[@aikz5]

How effective are LIQUI MOLY injector cleaners if used every 3-6 months?

[@joemason9187]

As you answered the question about taking it to get them calibrated, would I need to know the number codes of 123&4 or does machine find them thanks and great vid tutorial

[@btdgarage]

The machine will generate new codes for your injector. If in case you're buying a new set, use the codes located on top of each injectors. Thanks!

[@misi2752]

Is the cleaning solution in the ultrasonic cleaner just plain water?

[@ClipuriDiverse.21]

common rail ? please tell me if kia ceed from 2007 1,6 diesel crdi 90 hp engine cod D4FB , have common rail ?

[@ashy1423]

Really well instructed video, what type of ultrasonic cleaner machine do you use and what solution do you use for cleaning. Thanks Ash from Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@btdgarage]

Hi! Got the tank from ebay. Says it has 50w u/s power, 40khz frequency and a 100w heating power at the back. Not sure if it’s really accurate though. Regarding the ultrasonic solution, it’s a custom mix we get from a local supplier here in ph. You can find a lot of them online, just get the ones that are aluminum safe. Thanks for watching :)

[@gulag8735]

I'm looking for one too. Allen Dale ultrasonics in the UK have all sorts. I'm going to get a small one. 50 quid. 🇮🇪

[@user-ly1iw8kr1f]

Отличная работа. Молодец!

[@madinadiesellab]

Good work

[@btdgarage]

Thanks!

[@user-dl2qf4rc6z]

유익한 영상 잘봣습니다^^ 초음파세척기에 오로지 물로만 부품을 세척하였는가? 화학약품을 쓴다면 추천부탁드립니다

[@btdgarage]

소량의 엔진 탈지제를 물에 첨가할 수 있습니다. 감사합니다

[@zensempai7371]

Could I slip in a DLC needle in the reassembly ?

[@jameswan670]

What is the Assembly torque?

[@thesolpurpose3109]

if this doesnt need to be done on all whats the benefit of doing it? just curious

[@martintoman6266]

Hi great video! is it necessary to adjust the injector on a special machine after this cleaning? thanks!

[@btdgarage]

Basically, all injector calibration codes are inputted in the ECU from the factory. These codes help the ECU determine the specific output flow of each injector as no injector is exactly identical. Now, wear and tear or repairs such as replacing some injector internals with bnew ones will give a different output than the programmed data in the ECU. This scenario requires a special machine such as Hartridge Injector Calibrators to generate new calibration codes for each injector then you can input these codes in the ECU using a scantool with an Injector Coding function. If you just cleaned the internals like we did in this video and didn't notice any loss of power and high fuel consumption afterwards then you're fine. But if you did, It's best to bring your unit to a calibration shop that can test/read and generate new calibration codes for your injector.

[@martintoman6266]

@@btdgarage Hi, thanks for very detailed explanation!!! it is very clear now!! another question and last one is if is necessary to ANNEAL the washers under the injectors before mounting or not? Thanks again :-)

[@btdgarage]

@@martintoman6266 Thanks Martin! Annealing the washers isn't necessary but also not a bad idea if done properly.

[@miralemmerdic]

This is just too good. I have problem with injectors, after i press gas pedal little bit further engine start shaking and almost turning off. When i connect diagnostic i see that 3injectors parameters are going crazy like 4.5-5mg and normal is like 0-1.5mg+/-. I cleaned injectors like this and now car is working perfectly, on diagnostic it shows 0.1-0.2mg.

[@rayjones3473]

What temperature did you se the cleaner to

[@OliverGatch]

Boss how much ang service charge nyo for injector cleaning? Loc na din salamat!!

[@brettwile8355]

If you have had a catastrophic HPFP failure on a vw 3.0L CATA 2011 Touareg are the injectors salvageable? Can I clean them and reuse them or are they scarp? Do the aluminum particles from the HPFP do damage to the injectors that can't be fixed?

[@btdgarage]

It depends on how long you were still running the engine after the HPFP was shot. Try to check the fuel rail and pipes first for debris. If you find any, it’s best to bring the injectors to a professional who can fully take it apart and run it on a bench test machine.

[@brumono]

A great video, a question for all Bosch injectors, is the nozzle tightening torque the same or does it change?

[@albinklein7680]

It is 80Nm for the old indirect injection ones and 45Nm (or 30 degrees after seating the collar) for the two-stage TDI injectors.

[@snoopy81]

Great video, how many nm torque for tighten the nozzle? Thx

[@btdgarage]

Hi! 50Ft lbs or 67nm. Thanks!

[@toolbox0001]

Cool base beat as the back ground.

[@deebee3901]

Interesting!

[@DeutschlandLife]

If i want to change the nozzle, do i have to adjust it new with adjust washer? Want to upgrade a stock om611 injector with nozzles from a C30AMG. Same injector, other nozzle. Thanks! :)

[@marko2993]

Short answer: yes... Not all nozzles are built identical, that's why those shims exist... If you do this yourself you can experience a rough idle... But it can be done, the injection angle should be the same...

[@AzizAkbiyik]

It was very relaxing and informative, Thank you. Greetings from Turkey

[@btdgarage]

Thank you!

[@statisticsspeakforitself4205]

Turkce yaz

[@AzizAkbiyik]

@@statisticsspeakforitself4205 😁 Türk müsünüz?

[@statisticsspeakforitself4205]

@@AzizAkbiyik yok rum 😀

[@AzizAkbiyik]

@@statisticsspeakforitself4205 Yassuuu🌹

[@nikolajankovic8950]

Hi boss,I have to say a mega video one of the best on the subject of general overhaul of mag-controlled injectors. My question is which threadlocker (medium strength / high strength / heat resistance) do you use? The usual products are resistant up to 300 degrees Celsius - because the temperatures in the combustion chamber are around 900 degrees Celsius! I would be very pleased to receive an answer ... Many greetings

[@John-rw9bv]

While the combustion chamber temperatures are 900C, the walls of the cylinder aren't that hot, and things further back are even cooler as coolant channels run by them. I'd say 300C sounds a little low for an engine, but it's probably fine, or rather, if your injectors are 300C then you probably have bigger problems than the type of lock-tite you used, that's really really hot.

[@davidelliott5843]

Blue threadlock usually means standard performance stuff. Running temperature will be the same as the engine coolant so nothing fancy needed.

[@peterseckar1795]

hi can i clean injector from skoda superb 103 kw Common rail like in your video?

[@beemergb]

By the way what would you suggest to use , after cleaning the injectors , to put on the outer body parts to stop the injectors from rusting in the head bores ?

[@albinklein7680]

If you really are concerned about that, Mercedes Benz will sell you the "Injektoren Spezialfett" they use on their notoriously stuck CDI injectors. A can of 100 gram costs about $20. It sounds expensive, but it is actually cheaper than the stuff Liqui Moly or Petec sells.

[@MASBAY_VLOG]

What the torque for coblver injector??

[@373julien]

What are the Torque settings Nm Please 2

[@paulwisdom5383]

Does the body of the injector ever need cleaning out, once you've removed the shims and spring? Or is that part generally clean?

[@btdgarage]

Hi Paul! Not really but it wouldn’t hurt to pour some diesel in the holes while it’s upside down then quickly turning it upright to let it drain. Carbon buildup usually takes place in the nozzles. In some cases though where the injectors get contaminated by water or particles from dirty diesel, the injectors will require a complete tear down/reconditioning but it’s best to let a professional do it.

[@felixalbion]

I worked in a factory making injectors for ,11 years and can tell you that its impossible to do the job properly at home. Yes you can strip and clean them but you cant reset opening pressure which WILL change as soon as you dismantle the injector, you cant check the spray pattern properly and you cant check wetseat or backleak time. You need very special very high pressure expensive equipment to do any of that.

[@barbossajacksparrow9481]

Bullshit.

[@kerrysupporter]

So should I go and buy new injectors for my smoky ford 3600

[@brarautorepairs]

I believe with a common rail system, you are using the electrical connector to open the injector. Furthermore, the PCM can smooth out idle pulses by watching the change in rpm as each injector is fired. During acceleration, the smoothing doesn't matter anymore and the watches other inputs such as rail pressure, boost pressure and the air fuel ratio at the exhaust plus temperatures. Modern Diesel design and computer control systems allow for fine adjustments. Due to manufacturing variations, auto makers have several programs to fix injector imbalances on all gas and diesel engines. Cleaning the injectors at home will improve their flow and spray pattern. The tip does wear over time allowing more fuel to flow than set at the factory but the automakers have a mileage adjustment as well in their fuel calculation.

[@albinklein7680]

I work in the trade since the late 1970s and I never ever saw the opening pressure of an injector change drastically after dis- and reassembly. If you put the tips in the same injector body they came out of, you will be fine in 99,9% of the cases. I also think it is much better to drive with a cleaned injector which is a few bars off than drive with a carboned up and leaking one.

[@Aleksanderee]

The best way after cleaning is just put injector on bosch maschine to generate new ima code. Thats all. Then injector can working totaly properly. Of course when is not damaged. New ima is ~20$ pro pice