EGR TROUBLE

Join me, DiagnoseDan, as I tackle the challenge of diagnosing a BMW diesel that's throwing some puzzling EGR fault codes. In this episode, I walk you through every step, from verifying the initial complaint to the nitty-gritty of pinpointing the issue. While that check engine light might play hide and seek, the stored fault codes have a tale to tell. With a mix of technical know-how and a dash of humor, I'll show you the hurdles of dealing with an elusive EGR valve problem and the crucial role of a meticulous visual inspection. But here's the catch: what's really causing these fault codes? And how can you ensure the EGR valve is installed without a hitch? I've got the insights, but the final solution? Well, that's a secret you'll have to watch the video to uncover. Let's roll up our sleeves and diagnose it together!
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[@HelgiThorisson]

You are armed with the knowledge and the right tools and you know how to use them! You would make a great weatherman I am sure.

[@Diagnosedan]

🤣🤣Thanks!

[@Jake-sq7ve]

I'm so glad I found your KZbin account a few years ago, everything you do seems so easy and professional. I work as an educator in car mechanics and sometimes I make my students watch some of your videos and answer questions, keep doing what you do! Best regards, Jake!

[@wilco3365]

When the egr valve is open, the temperature of the exhaust gas will decrease. With a closed valve it Increases wich is necessary for the regeneration (around 600°c i believe)

[@Diagnosedan]

Thanks for watching!

[@shueibdahir]

Exacta!

[@SA-he5ej]

I like how you explain everything. Unlike other channels like this where i get bored, this is quite enterntaining and informative.

[@timtec3000]

I'm a BMW tech and done to the letter. Not to mention the EGR cooler issues. We also carry out an air mass test via ISTA to confirm repair. Very interested in the Top Don machine have used the Pheonix Elite very impressed .

[@Arlo10]

I can watch your videos for hours, and learn a lot from you, thank you Dan 💐

[@garethedwards2883]

Thanks for another great video Dan, just wish you had time to make more as they are really enjoyable to watch.

[@Diagnosedan]

Yes it would be great to do more videos

[@RadialPen6262]

You have the coolest tools. I would be lying if I told you I wasn't jealous

[@michaelcook1923]

Something new you learn every day. I wonder how many people have been fitting them wrong all this time. 👍👍👍👍👍

[@Diagnosedan]

I was thinking the same🤣

[@dalehamlin7383]

Most enjoyable channel on KZbin for auto enthusiasts......! Perfectly explained in detail with entertaining commentary. These EGR valves have similar issues with many vehicles including Ford and Toyota. Lots of KZbin videos on the cleaning process but these repairs seldom last. Thank you for producing the best diagnostic videos of all. Please keep them coming...!

[@Diagnosedan]

Thanks for taking the time to leave a comment!

[@erictomas7739]

Very excited to see another new video! Thank you very much DiagnoseDan, its always helpful to review your videos on certain topics I haven't dealt with in some time, as a course refresher. Its like going back to tech school for 10-15 minutes. Awesome teacher. Thank you again!

[@Diagnosedan]

🤣🤣👌

[@davechapman7735]

LOVE IT!!! Classic bloopers and an excellent fix, always a pleasure to watch Dan. cheers NZ

[@Diagnosedan]

Thanks Dave

[@intelligentauto737]

The EGR and the Throttle Body are active during regeneration, (I’m not going to say open or closed as their positions change) the reason for this is to control the level of oxygen entering the combustion chamber which then controls exhaust Temperature during regeneration.

[@payaso2297]

👍🏽

[@Diagnosedan]

Thanks for watching my video!

[@FoookOff]

EGR stays closed on my 3.0 TDI.

[@Infiniti25]

@@FoookOff intentionally?

[@shueibdahir]

Stays closed on my 2.0 TDI PD BMP. Infact my EGR is programmed off so it stays closed and is blocked off. It still regens and reaches temperatures of 800c. The only time my regen can't initiate is when there is an EGR code stored on the computer.

[@TheDisgruntledMechanic]

Thanks Dan! Always learn something new when watching your videos!!

[@Diagnosedan]

Thanks for taking the time to leave a comment Mike!

[@josepeixoto3384]

The cars are so well made nowadays,that it's amazing, they inteligently manage to carefully design and make a simple 2 bolt EGR valve that you absolutely need a 1000 euro computer to allow you to tighten those 2 bolts, just amazing

[@moldovanandrei7008]

You can make this procedure with 10$ ENet cable and dealer Software. Bmw diagnostic Software is very-very good.

[@johannadefeles2227]

bmw so over engineered it is sublimely stupendous SIMPLE ENGINEERING EQUALS CLEVER ENGINEERING ALWAYS.

[@paulmiller8411]

The best and most interesting technician on youtube , need more big dan , 1 video a day should keep everyone happy.. thankyou sir..

[@Diagnosedan]

Thanks for the great comment!

[@johnsmith-wd5sq]

I just changed out the Egr valve on my small block Chevy. Took me less time than than the Blooper reel! Lol! Thanks Dan, You are the Man!

[@Diagnosedan]

Thanks for watching John

[@norcal715]

Love the bloopers, I have been putting them in my videos for several months now with positive results. They want to see that we are not perfect.

[@Diagnosedan]

Thanks for watching!

[@mike-yp1uk]

I'm amazed with the details of your work giving excellent visuals to really make sure we understand. I wonder what the graphing multimeter would have shown.

[@jeffreybell5454]

Great video Dan, best diagnosis channel on KZbin.

[@Diagnosedan]

Thank you!!!!!!!

[@kwabenayormesah3263]

I like Dan. Why. Because he don't waste time to talk a lot. Straight into troubleshooting. Thank You so much

[@Diagnosedan]

Thanks for the comment

[@danielsoderstedt1941]

There are regular car technicians, and the there is Dan. 👍👍👍

[@jonathanhelmbold1162]

During the DPF regeneration cycle, some diesel gets sprayed by the injectors on the exhaust stroke, to help burn off the soot caught in the DPF. EGR valve would need to be closed. Always love your videos man! Greetings from South Africa!

[@d-s-ll2378]

My hero! wonderful demos and explanations❤

[@ericchan7500]

Thanks for another great video Dan! Your bloopers are funny too - it is what happens when you are proficient in more than one language. It's not easy!

[@Diagnosedan]

That's right😁

[@ambitioushunter]

EGR valve should be closed during dpf regeneration, then all heat will come thru dpf to help gain particulars burning temperature. Another great video Dan!

[@ALLin-one1]

Yes am with u with the answer

[@Diagnosedan]

Thanks for the comment 😉

[@tecnaman9097]

You've been watching the Hydraulic Press Channel Dan. And the EGR valve should be closed during regen. Thank you for another entertaining and informative vid!

[@danielg4228]

I was about to comment about the Hydraulic Press Channel too !

[@Diagnosedan]

Yes indeed i've watched some of the videos 🤣🤣

[@peugeotplanet7553]

Wow... I'm really glad I'm subscribed to ur channel.. I work in an automotive training center and I've been looking for a scan tool which I can connect to a big screen for ease of demonstration with my students... Thanks for ur great work Mr Dan

[@Diagnosedan]

The Topdon Phoenix Max has a mini Hdmi connection that makes it easy to share the screen

[@mikester1290]

I've been through the same exact thing but the scan tools I had did not have the feature to put the EGR into the fitting position, I had to work out which wires were for the actuator and simply supplied them with 12V while I fitted it, and fitted it quick because who knows what duty cycle the EGR actuator is designed for, but it worked, the only other thing you didn't say, and this could be my memory here as it was a while back is that I recall using a diag tool to tell the ECU it had a new EGR valve fitted, which is common these days.

[@johnplump3760]

Hi Dan: Great Video. Yes!! Always read the instructions. Never "ASSUME!!" it does make an A-- out of you and me!" Always read the manual/instructions. Very good information!!

[@Diagnosedan]

That's great John

[@bechirsouli3014]

best channel ever !! big love from tunisia

[@armyvet92]

Another AWESOME video Dan ! Thanks for all the lessons you provide us all !! Much appreciated !

[@Diagnosedan]

Thanks!

[@GerardBurkeBurkesGarage]

Great work Dan, Love all the bonus footage as well 🤣 :) An EGR valve installation position, does it also need a relearn after install? The extra lengths to stop people working on their vehicle I guess it could be possible to retract by applying voltage during install if the shop had no feature on their scan tools, similar to electronic brake caliper and using the electronic brake switch/button for adaption afterwards. Always good to see your videos, I hope ya get time to post up more often😃

[@jordysandino6577]

Me encantan sus vídeos maestro . Thank you so much

[@etubens124]

Very informative and on point. Also liked the bloopers 🤣

[@olko3418]

Love the new video format! Keep them coming as often as you can.

[@Diagnosedan]

I will😁👍

[@andruspuusta4230]

Your videos are really enjoyable! BR from Estonia!

[@JamOwnzU]

I am a technician and so when you asked the question "Should the EGR valve be open or closed during DPF regeneration?" and I didn't immediately know I thought huh? How come I've never had to consider that before? Good question. But what I do know about EGRs is they allow spent gases to occupy some of the combustion chamber therefor reducing exhaust temperatures and NOx emissions as a result. What I know about DPF regeneration is the temperatures are extremely high to break down the hydrocarbons clogging the filter. Logically then: The EGR should be closed during a DPF regen. But I imagine there are specific circumstances in the mapping that will allow for it to be open maybe some of the time. Good video again Dan. You're a legend and obviously really know your stuff.

[@mohamedzouhair6859]

Hi Dan, im always happy to watch your videos. Exellent as always.

[@Diagnosedan]

Thank you!!!

[@elvisvwvw]

love it when istructions says refer to service manual by the car manufacturer!

[@BealRutcher]

Thanks man, Interesting those EGR valves. When I bought my iQ in 2010 the EGR was draining from before the catalyst, from the exhaust. These were the then " older" model iQ's (till second half 2010) . After some strong discussion with Toyota Holland they replaced the EGR valve, that now was draining after the catalyst. All the newer models from second half 2010 had it in this way. The older models had some problems due to the placement of the EGR valve. I think owners in England went to court about this. Cars would randomly stop having power and go in limp-mode. After a lot of discussion here in Holland with Toyota, they exchanged the valve and catalyst. For free. It has never been a recall action. Weirdly.

[@GroundedDiagnostics]

Great demonstration of what will happen if you draw the egr in with the bolts without actuating it first. Loving the Topdon stuff glad to see it was capable of this job. oh and closed

[@Diagnosedan]

Thanks for watching Scott

[@unclemarksdiyauto]

Interesting that KZbin just notified me 4 weeks after you uploaded this video! Not sure what’s up with that! Yep all notifications selected! Thanks for the video Dan.

[@hpelisr]

Nice fix Dan, very interesting install.

[@Diagnosedan]

Thanks!

[@thetraindriver01]

Excellent work again Dan 👍👍😜

[@rodmaclean6862]

Great video again Dan, you will have to do more videos, Dan your the man!!

[@Diagnosedan]

Thanks for watching

[@JustAnother_Irishman]

The leopard has nothing on the Bob Semple tank. lol. That's a snazy PWM machine you have there.Thanks for sharing Dan.

[@Diagnosedan]

My pleasure

[@danthemann6565]

Thank you for the video Dan, always educational and interesting.

[@Diagnosedan]

My pleasure

[@RobertP7884]

nice one, good explanation of egr/pwm supply. like your pipe clamps tho

[@mikechiodetti4482]

Great video, the install tip and the question. I would think the valve needed to be closed during regeneration so maximum heat can burn the particulates in the filter.

[@Diagnosedan]

Thanks for watching Mike

[@Doug....]

Thank u Dan. Always like your very interesting diags 👍👍👍

[@Diagnosedan]

Thanks Doug

[@abderrahmanegouasmi7556]

Great video. I learn a lot from as usual. Thank you.

[@agoodneighborautorepair2176]

Hi sir very nice, always so educative,blessings

[@davidngonga7665]

Always interesting diagnosing with you.

[@Diagnosedan]

That's great to hear David 😁👍

[@carlosmaurencig6763]

Great video, Danny!

[@kennydoolarchan9515]

Thanks Dan for making this great video.

[@Diagnosedan]

My pleasure Kenny

[@marknewman6037]

Fantastic, cheered me up after a crap day, cheers Dan mate.

[@Diagnosedan]

That's great to hear i hope tomorrow is a better day Mark😃

[@djosbun]

Dan the weatherman!! Love it!!

[@Diagnosedan]

🤣🤣👍

[@3jeepsdeep768]

Excellent video - Thanks for creating it.

[@Diagnosedan]

My pleasure

[@ivaneu1]

I really appreciate when KZbin send me a notification about a new vídeo that chanel. Thank you a lot Dan.

[@Diagnosedan]

My pleasure, thanks for watching

[@raymondprendergast5839]

It's good to see you with another video after all this time but never the less it is another good one , answer to your question is the EGR valve should be closed because all the heat is needed for regeneration to take place.

[@Diagnosedan]

Thanks for your comment

[@westerneagle3796]

should be closed during dpf regeneration , Thanks for all the lessons you provide us all ✌

[@dennisjones1961able]

Another great video Dan, well done

[@Diagnosedan]

Thanks Dennis

[@dord1954]

i love your videos, so informative i learn something on them all :)

[@Diagnosedan]

That's great to hear

[@davidkaye8712]

I love how you refurbished the old valve at the end.

[@Diagnosedan]

🤣🤣

[@Pablo_Automotive]

Nice explanation Dan, thanks for share.

[@Diagnosedan]

Thanks for watching

[@dennisvdpol1408]

Je video's zijn een genot, ik vind je Engels goed. Had het pas door toen ik die gele kentekenplaten in je garage zag. Echt top, dank je wel voor de kennis, maak er best wel gebruik van bij mijn werk in de garage.(vakgarage in Diemen). Translation: only compliments

[@alrifainidal]

Great video Dan. The EGR valve should be closed during DPF regeneration

[@Diagnosedan]

Thanks for watching

[@HobbySMD]

Dpf regen happens by injecting more fuel post (after tdc). This will make exhaust heat. Egr is allways closed under regen to get maximum o2 in to combustion. A leaking egr valve will make combustion colder and less clean, making life for dpf hard..

[@billbyrd9845]

You do a great job. Love your channel.

[@Diagnosedan]

Thank you Bill

[@TheKebabBoy11]

thanks king for another great educational video!

[@Diagnosedan]

My pleasure

[@polnashautosgarage0001]

That's a cool one Dan,Best option was to replace,otherwise,eventually,the carbon soot would have found its way back to the drivers

[@hybridsolutiondiagnostics]

Thank you danny, amazing video as always... keep up the great work 😎👍😎👍😎👍😎👍😎👍

[@Diagnosedan]

Thanks Hosé😁👍

[@ericdejong2736]

Great video Dan. Thanks again.

[@Diagnosedan]

Thanks Eric

[@PaulysAuto]

Always great content Dan, thanks for sharing all your experience with us! God Bless 🙌 my friend! FYI: you should TOTALLY do a weatherman skit with a car 🤣👍...just for fun,, WHY? BECAUSE it would be EPIC! ALSO...your edits, shop DECOR, and video quality are STELLAR! ALSO, your personal thoughts on that TopDon thus far? Good stuff 👍???

[@Diagnosedan]

Thanks for the great comment. Topdon uses Launch software. Launch software is good but not as capable as Autel (yet)

[@PaulysAuto]

@@Diagnosedan Excellent, thanks for the information Dan.

[@burgerbirger2221]

Great vid again, and the shop looks cooler than ever👍 That's quite interesting, didn't know the EGR valve had a service mode on BMW? Have an old Mercedes (220cdi/W211) i like to screw around with. And i can tell you that the EGR valve takes two minutes to remove with a T30 and E10 bit. No cooling lines to clamp off. And it is a "caged" type so the valve isn't just hanging out in the open like that. And to answer your question, EGR is closed during DPF regen. as many of the comments is claiming. But not completely, i'm guessing the EGR position sensor is around ~2,5%.

[@Diagnosedan]

Thanks for the great comment 👍😁

[@TOM2RN]

How interesting you have a large monitor to see the scanner info. I just suggested this to Eric O. at South Main Auto the other day.

[@Diagnosedan]

My eyesight is getting worse 🤣

[@doctorrobert60]

That pressure test on the old EGR valve did a great job of cleaning out the "junk"😜

[@kevlec1947]

Welcome back mate. Nice job.

[@Diagnosedan]

Thanks Kev

[@Droneoflife]

Love your videos, very informative and well build :D

[@Diagnosedan]

Thank you very much

[@johnmiller9695]

great video as usual... always learning something..

[@Diagnosedan]

Thanks!

[@stevesmart944]

Clear and precise !! Amazing !!!

[@Diagnosedan]

Thanks Steve

[@billcarrick889]

Dan!!!! Where have you been??? We have been jonesin for more video from you here in the states. I personally love all your videos.

[@Diagnosedan]

I've been very busy! Thanks for the great comment

[@ozzstars_cars]

We don't need paper directions when we have you Dan to tell us to read the directions. lol Excellent info!

[@Diagnosedan]

And we don't need a workshop manual on a Corvette when we have Glen💪💪😁

[@2stroke2smoke34]

Another awesome video 👍👍 I'm sure the EGR is both opened and closed during dpf regeneration as if closed to long surely the increased oxygen although helps create heat it's also going to create NOx also the EGR cooler valve would be closed to create more heat with the exhaust gases

[@Diagnosedan]

Thanks for watching

[@neildean7515]

Dan, i would be interested to see a car diagnosis and repair on a DPF blocked or not regenerating and an explanation of the system, great video thanks

[@jilipollasgamers4172]

I can't take out "diagno sedan" from my head. thanks for all your teaching

[@isalmankhan1]

Superb Thanks for educating us Dan👍 Really helpful case study on being mindful of installation procedures👍 Stay Safe Bro👍

[@Diagnosedan]

Thanks for watching

[@user-xt4rc9qb8v]

Thanks for the video, I wish there were more releases. The EGR valve must be closed during regeneration.

[@Diagnosedan]

Doing my best😉

[@Lambros_Stefaneas]

well done, Dan.Thanks again, for the effort you put on the videos to teach us. By the way, this motor bike is yours, or is to fix it?it's a beauty 😉

[@Diagnosedan]

The bike is my wifes😁

[@wardybasher]

An open valve helps lower the exhaust gas temperature and reduce NOx. It needs to be closed to allow the exhaust temperature to increase sufficiently for regeneration. @diagnosedan these videos are 👌

[@Diagnosedan]

Thanks for the great comment 👍

[@-_Robert_-]

Super as allways. Do more video's please.

[@Diagnosedan]

Thank you very much

[@idiotbox8291]

Luv your work mate!

[@Diagnosedan]

Thank you

[@chriswilliams1595]

Top man Dan . Thanks for the tips .

[@Diagnosedan]

My pleasure

[@Capitanvolume]

I've had this problem on the street sweepers in our fleet. Lots of low load operation means that soot builds rapidly. However the egr valve is over 500 dollars and the labour to clean is only $180. So we are clean them out.

[@Diagnosedan]

Makes sense if the egr valve is that expensive

[@jacabaca7440]

During the DPF regeneration process diesel fuel is injected into the cylinder after combustion has taken place on the exhaust stroke (post injection) so it is pushed through the open exhaust valve into the exhaust system. Here it is burned with air to generate the heat required to burn the carbon (soot) in the DPF, so the EGR would be closed to increase the temperature. Keep it up Dan, great videos! Even a school boy would understand what you're talking about...:)

[@Diagnosedan]

Thanks for the comment 👍

[@royjennison3916]

Dan , you are 100 percent right in your diagnosis , and fitting of this part , i am a BMW tech of 30 years , as you know BMW are on a masive EGR cooler recall , the last few EGR recalls have being change the Valves and program the car , then was change just the EGR coolers , now it change EGR coolers with valves as well , i suspect the cat will be due for that recall .

[@Diagnosedan]

Thanks for the comment 👍

[@user-dz2jy7ss2g]

Thank you for another great video 👍🏼

[@Diagnosedan]

Thanks for watching

[@bugsautoonthemove]

Love your video's South Africa Durban

[@Diagnosedan]

Thank you

[@arthurbiringer5676]

Great video!