mercedes no crank (when Hot)

In this video we Diagnose and Fix a Mercedes that doesn't want
to crank if it's at operating temperature.
Let's Diagnose it together!
for the Autel IM608 used in the video;
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For business inquiries ( Not for technical questions);
[e-mail]

[@Diagnosedan]

or the Autel IM608 used in the video; US: amzn.to/3gyPxas Use this promotion code: YTWZGKUM You save $130 UK: amzn.to/3f9IHI1 Use this promotion code: OH3I8FPD You save ￡100 DE: amzn.to/3fmnDyt Use this p[romotion code: 6DRDGXKA You save €100

[@pseudosmith9945]

Only thing i would have added is performing a loaded (voltage drop) test between the control wire from the P.C.M and the relay pin.. (making sure it's disconnected completely of course) by jumping a wire from the relay pin to ground and then connecting my incandescent test light to power and grounding it through the wire to ensure it can carry current while hot and performing the ol'wiggle test.... just my opinion.. but as usual.. Diagnose Dan Fixed it AGAIN.. great job brother.. love your content and thanks for sharing.. 👍

[@johnasmith2040]

Not just the Germans, the E type Jag had the ignition module in the same place. That too was the same problem.

[@Stoney3K]

I have a suspicion that the solder joints on the ECU circuit board just go bad which causes the bad connection (might even be causing that sensor fault code). So the ECU can be repaired by re-flowing the solder for the connectors.

[@mehrbanqurban1858]

In the electronics repair we use products such as freezer and hair dryer to pin point thirmal faults fast . Due to lack of time quick turnaround.

[@moestrei]

@@Stoney3K Yep, was made worse with the introduction of lead free solder which is harder and more likeky to fail in an environment with vibrations and temperature cycling. The soft toxic stuff was better in that regard.

[@themediocretriathlete]

This is honestly the best automotive learning channel on KZbin.

[@Diagnosedan]

Thank you very much 😀

[@elcheapo5302]

Who puts an ECU ON TOP OF AN ENGINE!? Ze germans, that's who. Nice work, Dan!

[@jamesjames3525]

🤣😅😆😁👍

[@JoesAutoElectric]

Cadillac does on some models as well

[@parochial2356]

Easy to get to for [the inevitable] diagnosis. "Engineered like no other car in the world." Well, almost, but thank heavens not all cars are.

[@jamesjames3525]

@@parochial2356 Yes so we can still fix them.

[@jamesjames3525]

@@JoesAutoElectric Why should their owners miss out on the fun???🤣🤣👍

[@countrysideb5]

The people giving thumbs down to these informative videos needs diagnosis.

[@Diagnosedan]

😂😂

[@Viper81766]

They are jealous of his knowledge and ability to apply that knowledge .

[@Diagnosedan]

@@Viper81766 it can have many reasons, but i'm so glad there are so many thumbs up👍 Merry Christmas 🎅

[@Viper81766]

@@Diagnosedan Merry Christmas to you brother and I am very thankful for all the videos and information you give us techs . God bless

[@Spelter]

Maybe the downvoters are from Mercedes?

[@mikesievers1482]

I remember working on a lot of Mercedes back in the day. Non starting when hot was a pretty common problem with the old w201,w124 thru w202 models. Nine times out of ten it was usually a crank angle sensor fault or a cooked fuel pump relay due to a lazy fuel pump. I remember on more than one occasion having a customer come into the shop with a Mercedes that wouldn't start when it was hot. They would normally tell me, I managed to drive it a couple of blocks to get it here, but if I turn it off I guarantee it won't restart. I asked them to pop the hood and I go away to grab some tools, only to return with a glass of iced water and proceed to pour it down the back of the engine block. Then ask the customer to hop in and start the car. The look on their face when the car starts right up is priceless, because they think you're just fixed there car with a glass of water. ! Chilling down the crank angle sensor with ice water is a poor man's reset if you like. It doesn't always work of course (depending on the fault) but I had a lot of success with this method. And it just goes to show you don't need a lot of expensive diagnosis tools if you're doing this at home and don't have a lot of money,. You just need to use a few secret tricks of the trade. Even too this day, I still know mechanics that can't diagnose faults in early Mercedes. Admittedly they can be a little problematic without the right equipment. Great series of videos by the way. Keep up the good work 👍

[@wyattoneable]

So good to see you again Dan. Now back to the video...

[@Diagnosedan]

😂😂👍

[@igotaction]

It's amazing how modules never think there is anything wrong with themselves!!!!

[@jooper99]

It's always the other module's fault...

[@ReubenHorner]

I have seen many internal ecu fault codes. Tends to be ze germans that have these specific issues

[@jamesjames3525]

@@jooper99 it wasn't my fault, he started it.🤣😅😆👍

[@Divided-Kingdom]

Sounds like a few "mechanics" I parted ways from

[@Butlerbob]

Typically a German approach to the German car brands, it is never their fault, it is always someone else's fault, the "passing of problems" is also a German invention !!! But iwe will now put / place a computer on an engine block, you know that it can get quite warm, surely there is a cooler place to find?

[@fletch3576]

You are such a clever guy and i love how you explain your thought process You should be a teacher 😀😀

[@Diagnosedan]

Thanks!!

[@glasser2819]

@@Diagnosedan your teachings about cleaver junk-designs are a true blessing. Txs 🤗

[@MyKharli]

I always get that `Dan will fix it ` feeling when i start watching these.

[@Diagnosedan]

😂😂😜

[@TheNuckle1]

Nice video Dan, I’m a Mercedes dealer apprentice, as soon as I saw the title I screamed “It needs an ME” I once had a CLS500 lose fuel pump command intermittently, another tech told me to tap on the ME with a rubber mallet and see if it works. Surprise surprise look who’s got a running fuel pump. I guess sometimes you gotta think like Jermey Clarkson

[@wholeNwon]

Was stranded once and dealer told me to pull the fuel pump relay and drop it on the pavement. "Fixed" the problem. Replaced under new car warranty...with lots of other stuff for different reasons. Switched to Lexus....MUCH better cars.

[@igotaction]

Bad solder joints on the ME had a Mercedes foreman in Canada tell me to do the same thing

[@Diagnosedan]

Loss of Ignition control is also very common

[@Angelo80907]

Lexus is an American brand lol

[@wholeNwon]

@@Angelo80907 Brand name. My car was made in Japan.

[@stewiegriffin6503]

Why would anyone put ECU on the top of the engine, when there is perfectly working exhaust pipe

[@Diagnosedan]

😂😂👊

[@tomasnokechtesledger1786]

Lay it over the catalizer, the converter.

[@mytester6208]

personally i would place it inside cat box, it helps cranking in winter times better...

[@mikesievers1482]

Not as bad as the early A class Mercedes that literally had the tcu in on top of the transmission. Now those things were a hand grenade living on borrowed time. Very unnecessary design.

[@evwhizz]

Lmao

[@FuManchu5ltr]

Dan, your videos are some of my favourite to watch. Always learn so much. Not just automotive knowledge, but better ways of looking at everyday problems and working through them. Much appreciated.

[@SerbanCMusca-ut8ny]

I could have said the same, only you said it before and better than I'd do. Dan is the man!

[@Diagnosedan]

That's great 👍

[@jalo1739]

Diagnosing is an art, and you are an artist. Thanks for always being so informative 🙏🏻

[@PistonShack]

My Congratulations Dan! Congrats on 100K! I have been watching and learning from you since you had around 5K. Thanks a lot for your time and effort. Take care brotha and greetings from Canada)

[@Diagnosedan]

Thanks for watching my video's from the begining, that's awsome

[@SchrodingersBox]

wow, just discovered your channel and it’s absolutely amazing. your skills are right on point and specific no nonsense delivery is extremely educational. Excellent camerawork too. Will definitely be watching more!

[@Diagnosedan]

Great to see you here! Thanks for the positive comment it's appriciated 👍

[@Divided-Kingdom]

Diagnose dan, teaching techs and customers alike. No wonder it's one of the best channels on the tube. I also read denton's books, worth their weight in gold 👍

[@Diagnosedan]

Toms books are awsome!

[@ncsarola]

You are an outstanding diagnostician. One of the very best on the internet! Very informative and thorough. Thank you!

[@frankmuschetto3385]

Great video, Dan. Well done and very informative. Appreciate you taking us along on your diagnosis of the MB. Please keep them coming.

[@Diagnosedan]

Thanks for watching

[@cristianilie8857]

Great job Dan! I wish all repair shops would have a man like you! You have a good logic thinking when it comes to troubleshooting! Hope to see more videos from you! Best regards!

[@Diagnosedan]

Thanks for the comment 👍

[@jamesmackie9292]

Love your videos Dan. Use them as training once a week to keep me mentally active on the diag side! Keep them up and thank you!

[@Diagnosedan]

That's great James, nice to hear the video's help

[@jizwinkle9822]

It's good to watch this stuff, and Dan don't really have to worry about giving away his secrets because really you always need a ton of special scan tools etc to really finish most of the jobs.

[@jancellcorsino5801]

Love u Dan and I love it even more when you are making videos for us !!! Appreciate it !!!

[@Diagnosedan]

Thanks for watching 👍

[@kennethegelundravn2994]

Great video :-) Coming from the "IT world" I would say that the automotive business could (/should) make things easier for themselves by actually putting more efforts in error handling. In this case I think it should be possible to get an errorcode indicating that no signal goes to the starterrelay when input comes from the ignitionkey.

[@htownblue11]

DAN!!!!! ANOTHER FANTASTIC DIAGNOSIS! I literally try and find the issues with you and pause the video and think what to look at next. I really enjoy your videos. I learn more advanced diagnostics, and am always impressed by your professionalism and approach to “Fixing it again!”. One of my favorite channels by far. Please keep up the good work.

[@Diagnosedan]

Great that you interact with the video, that's a good exercise 😉

[@MyScotty7]

I would love to spend a year with you soaking up your knowledge of diagnostics,its the most rewarding thing when you diagnose something and your right

[@rbspider]

That mod shows as a $600 dollar USD unit online. Here in the States a repair shop usually doubles the price of a part but they usually get a big discount too so its like double dipping Ouch. Love how you troubleshoot . love all the testers too

[@duanedonaldson2262]

This is why I told US Military members in Japan, where I lived for 21 years, to not buy any EURO cars in Japan, replacement parts are ridiculously priced. I helped a guy one time when I came back to the USA on vacation to buy some parts for him simply for preventive maintenance purposes, saved him enough that I got a steak and lobster at Red Lobster and he still saved money.

[@deaddoll1361]

Sometimes it's easier to load up the price of the part than charge the full amount of labour required to diagnose the problem. A customer will see a Mercedes part as being predictably expensive, yet too many hours charged, from a customers point of view, may be seen as incompetent.

[@Diagnosedan]

We paid €1450 directly from Mercedes!

[@rbspider]

@@Diagnosedan Well that is the best reason I have heard for buying a Honda Civic. When I drove a Lincoln Mark 7 someone told me if you want to ride like a sport you will pay like a sport. That device needs better insulation from heat and bigger cooling fins if they want to sit it over the engine . That is crazy . Awesome show!

[@Garth2011]

@@Diagnosedan When the factory parts fail fairly soon, thats when I shop for aftermarket quality parts.

[@MiguelMartinez-np8uo]

Dan great video as usual, thanks for sharing and welcome back! One thing I would do different with this diagnosis is to bring the engine to normal temp and measure the temperature on the ecm and then heat it with the heat gun to that temperature and see if the problem happens .

[@Diagnosedan]

It's very hard to determine the core temperature of the Pcm, the board fails at a specific temperature but this is not the same temperature as the housing

[@sasvanwyk5886]

@@Diagnosedan actually, I was thinking about the same problem as Miguel - how hot is hot and how would you measure the temperature anyway? This is where common sense comes in. I will heat that computer up until... and if it was not the fault, ended up with two faults at hand.

[@JoesAutoElectric]

You make Euros look easy brother. Great work.

[@Diagnosedan]

Thanks for taking the time to watch one of my video's its really appriciated 👍

[@slowpokerodriguez4359]

Dan, your aptitude for logic, reasoning and deduction are outstanding!! Another excellent video!!

[@Diagnosedan]

Thanks Alex😁

[@jond1536]

Dan, Great video, Why in the world would a car maker put the computer right on top of the engine? Seems idiotic. I am on the other side of the planet from you Portland, Oregon USA, Thanks for your videos Great Stuff

[@newtongsm]

Because engineer sitting in cold aircondition office in europe were is never gets hot

[@lanwickum]

Something has to fail if they are going to sell parts and replace cars. We all know how electronics love heat.

[@BMWcare]

It's very common. I've had 3 CLS with exact same issue. But, all makes do it now

[@obsoleteprofessor2034]

It's the Alpine version where they have to keep the computer warm.

[@TIMMEH19991]

Renault put them where water runs off the wing (fender). Fiat put them on the bulkhead above the turbo and manifold. Rover put one in the bulkhead on there R75 models that was hidden by plastic covers and it filled with water and drowned it. You'd have thought after all this time the manufacturers would have learned that behind the glove box is the best safe place.

[@DavidSuttoninSpain]

Hey Dan, you had no Bloopers on this video? You're becoming a professional Presenter, Well done buddy.

[@Diagnosedan]

Not this time😂 I don't always screw up😂😂

[@malibuStroker]

Thank you for taking the time to make these videos. They help more than you know and we really appreciate them!!

[@Diagnosedan]

That's great to hear

[@BA-xr1gb]

Man you are one of the best technicians I’ve ever seen so far, I own a mechanic shop for the past 16 years I work on all German cars, and do work alone because nobody wants to work unfortunately, but I love watching your videos you are such an amazing guy very nice humble I wish if we have more guys like you you really remind me of myself every time I watch your video, thank you so much for this wonderful videos man I really do enjoy it keep up the good work you are an amazing guy we appreciate you from the bottom of our hearts❤

[@kevlec1947]

Welcome back Dan, missed you mate.

[@Diagnosedan]

Missed you too!😂

[@jahrain1693]

Please what is the name of the author of the book

[@abuhamzahalmasry5627]

Dan man,you shine every time.i will come and see you in person God's willing one day.

[@Diagnosedan]

Thanks for watching 👍

[@paulwilliams2862]

Another amazing video, watching your methodical and logical approach has taught me more in 3 days than I’ve learned in a life time. Thank you for taking the time to do these videos

[@michaelhooboob]

Fantastic content and incredible presentation. Thanks for all the hard work you do putting these videos out. The knowledge i learn watching these is irreplaceable!

[@nickv4073]

Coming soon from Mercedes, placing the ECM in the oil pan.

[@ReubenHorner]

Already done. Check out where those DCT transmission ecus are located

[@ast5515]

@@ReubenHorner Ok, next one will be under the exhaust manifold. Or above the catalytic converter. I trust Merc to come up with some creative placement.

[@slasher9883]

Yep MB is one step ahead of you, already do that with their 722.9 auto transmissions.

[@Diagnosedan]

I wouldnt be suprised

[@steveyobs551]

Liquid cooling

[@joseramonherreramendoza9260]

Finally daaaaan boy 👋👋👋... good to see you my friend

[@Diagnosedan]

😁😁👍

[@Hscope-User]

Like always Dan, you follow every single detail to prove what is wrong and how things work or how they should work💪👍

[@Diagnosedan]

Thanks Ramon

[@paulbrown67]

I think Dan knows what the fault fix is straight away but good that he shows other things to check to make sure, I'm learning through watching everyone of his videos, keep up the good work Dan.

[@Diagnosedan]

Paul even when you have seen a certain fault a hundred Times. Always do a proper diagnosis because this time it might be something else. BTW i had never seen this exact same fault before. I did see the Pcm's fail before but most of the time the loose control on the Ignition coils

[@febbral]

Dan, I think it would be possible to add some insulation (heat resistant material ) between the engine computer and engine to isolate the computer from heat damage, because the new computer will be subject to the same conditions as before and shorten the computers life. A little design flaw from Mercedes.

[@duanedonaldson2262]

Insulation will still get hot brother, eventually, everything under the hood will heat up to the failure point, in this case, fresh air intake to cool it off is the next option.

[@febbral]

@@duanedonaldson2262 Duane, I was thinking of some material like ceramic that withstands high temperature, ceramic fire board withstands temperatures to 2300 deg F, I used it in a pizza oven, does work. Air movement would also help.

[@cwj9202]

@@febbral - Yes, that product will insulate the computer from direct engine heat, but I think the engine will still heat the engine compartment enough to still overheat the computer.

[@ReubenHorner]

@@cwj9202 I agreed with you. The whole engine bay gets pretty hot. Best case would be to put the ecm literally anywhere else in the car

[@paulaus]

@@duanedonaldson2262 Needs a power bulge with a ram air ECU cooling scoop 😂

[@igotaction]

Yes Welcome Back Dan!!!!!!!

[@Diagnosedan]

Thanks!!

[@Bozs4life]

Congrats on 100K subscribers DiagnoseDan, love your videos and can’t wait to see what you fix in the next video!

[@Diagnosedan]

Thank you

[@ve6741]

When this guy showed he was gonna use the IM608 to program the ME I found it funny thinking he must be joking. No way, Jose. IM608 is a mid range diagnostic tool good for keys but not for coding/flashing a Mercedes ECM. Yep, he figured that right, he needed STAR to accomplish the task. Despite the high cost the new Xentry are a beast and a tech who cures MBs for a living does need one. No way around it. Good video. From the beginning when the video started rolling I already knew the ECM was the problem. Common thing on these engine mounted modules. The engineers at Mercedes Benz are some of the biggest jokes in the car manufacturing business! Followed by Land Rover/Jaguar and then BMW.

[@CubasAutomotive]

Wow! Looking good sir! The facial hair looks good on you. 😉👍🏻👍🏻Now onto the video.... 😅😅

[@CubasAutomotive]

Excellent video. Very thorough testing!

[@Diagnosedan]

Great to have you here Cuba!

[@user-xf6on8sl1p]

5:33 BIG WIN 2020 kzbin.info/www/bejne/g3-xlWV6j7iXgdU

[@blitzbeast16]

Get excited when I see a new vid.

[@Diagnosedan]

Thanks Nick

[@keywal]

You sir are a master at your trade! Also can i say your presentation skills are amazing and ive been watching for a while. You certainly know how to explain and demonstrate each step really well. Love it.

[@Diagnosedan]

Thanks Keith

[@grzesiekh.3762]

As always professionally presented diagnostic techniques and exact fault with solution 👍🏻 Well done Dan and cannot wait to see another video 😉

[@Diagnosedan]

Thank you very much 😀

[@TIMMEH19991]

I think I'd fit a hot start button because I'm a cheapskate! LOL

[@ast5515]

Good luck selling the car later after you explain there is a separate hot start button :D

[@TIMMEH19991]

@@ast5515 Understand the word cheapskate..I only ever buy cars when they are very, VERY cheap and then when I'm done with them NOBODY would want them!!!!! LOL

[@ast5515]

@@TIMMEH19991 Yeah I guess that makes sense. I just hate running things into the ground.

[@nomanjones4803]

I was thinking the same thing.

[@Diagnosedan]

You could also try to insulate the PCM from the engine heat

[@TheDisgruntledMechanic]

How do I get 1 of those Diagnose Dan shirts? I want one! I got tired watching you get in and out of the car heating that engine computer! Great diag and fix as always Dan! Thank you!

[@Diagnosedan]

Please send me an e-mail, it would be an honor sir!

[@awofeowolabi2065]

Placing the engine control module on top of the engine was a design flaw. An ECU is ti be kept away from vibration, heat, splash of water etc. Great work as usual Dan!

[@hansvanrengs2642]

Danny thank you for this nice video. My students and I are glad you make these. Many things get much clearer when you show them on an actual car, your procedure, thoughtproces and the different tools someone can use to diagnose a car. Thanks again and keep up the good work. And by the way nice beard, looks good on you. Greeting Hans

[@Diagnosedan]

Thank you very much Hans it's great that my video's help you students.

[@jbr9719]

Oh yes we CAN ! 👍☺

[@Diagnosedan]

😁

[@bodgitandleggitgarage]

You are going to make 100k soon congratulations mate well deserved💪👍👍

[@Diagnosedan]

Thank you Leon❤️

[@davedowler72]

Just found your channel and haven't stopped watch all your videos. I've been in the trade many years now and can say every day is a school day you never stop learning keep up the great work dan pleasure watching and learning from you.

[@matusekpetr7806]

Well done Dan, you are the master of diagnosticians ! Imagine other shop replacing battery, relay, starter and not fixing the problem :D

[@Diagnosedan]

Unfortunately that happens 😕

[@S.F.I.]

Dan this is the same problem as to Astra G petrol engines...because of the position of the ecu which is situated on top of the engine and as i see this E class also has a petrol engine. I don’t know if the engingeers did this on purpose but i do really think that this is very wrong

[@Diagnosedan]

You are right💪

[@suchafunkymonkey]

It wasnt just the Astra G Petrol, the diesel model with the Isuzu engine had the same fault. I think ECU placement became a wider issue when all solder had to be lead free.

[@S.F.I.]

@@suchafunkymonkey yes you’re right .

[@zumik83]

"I need this car to be reliable "... poor lady.

[@Diagnosedan]

😂😂

[@numberpirate]

Should have bought a honda or toyota. Obviously if she wants reliability she shouldn't be looking to krautlandia...

[@MultiArrie]

@@numberpirate Business woman ,needs a presentable car. not a blob of sad dullness.

[@soldiers303]

@@MultiArrie who needs presentable when it doesn't work. It's not going to get you from a to b.

[@MultiArrie]

@@soldiers303 Your right, and your not. Cars are business cards and symbols of succes and trust worthy. If she drive a fiat 500 she is and secretary a fiat panda the cleaner. Propper Benz, head of sales or CEO. Toyota a no risk boring nono.

[@arbnor922]

The way how you count the possible faults,and then start eliminating them by proving each of them with concrete examples and getting to the real issue is absolutely Great. I had an issue with Ecu and what 3-4 mechanics couldnt prove where the problem was for around 2 months,you mentioned all of them that are related with an engine not starting in just 10 seconds. Its a pleasure to watch your videos,keep going 👍👌

[@Diagnosedan]

Thanks for the nice comment it's appriciated 👍

[@billyyoder8171]

Thank you Dan. Good job. Congratulations on 100k. Have a blessed and safe week to you and your family.

[@Diagnosedan]

Thanks Billy, i really hope you and your family are doing well

[@galangfujialamsyah3937]

Automatic played,, Real automotive master,,

[@Diagnosedan]

Thanks!

[@normphilipp4671]

love your videos dan i have always done my own mechanics but now with all this computerised crap its harder for an old bloke like me in the old days of carby and points i could get any car running and driving

[@Diagnosedan]

Things have changed alot since carburators and points😜

[@paulv5233]

As a retire Master Motor Mechanic I just love your channel. I served my 5 year apprenticeship in Dublin / Ireland with a large very established motor company called Huet Motors main dealers Rolls Royce, British Leyland, Jaguar, Rover, Saab, Volvo and everything in between I was a very keen apprentice and love my job working especially with the older tradesmen and gaining knowledge not written in books. We worked on the very early fuel & electronic system particularly Bosch. My most senior mechanic was great we had a gearbox shop, engine shop, panel / painting shop, automatic transmission shopI auto electrical shop spent at least 6 months in each shop learning everything I could ended up travelling the world working for the likes of Mercedes, BMW, Porsche, and many exotic makes. I like to move around to gain as much experience on all the different makes and how they done it. Eventually opening my own repair shops in Australia. Just to finish I really appreciate a good tradesman when they take pride in there work and from what I can see you are one of the best around. Keep up the great work Cheers Irish Paul

[@brianeno1062]

Dan has fixed it again! Great video as always! Cheers!

[@Diagnosedan]

Thanks for watching Brian

[@brianeno1062]

@@Diagnosedan sincerity is a scarce phenomenon nowadays I enjoy yours very much! Keep it up!

[@4BillC]

Why would they think a good place for that ECU is on top of the engine? Just wow!

[@Diagnosedan]

I would love to talk to the engineer and ask why😜

[@steveyobs551]

@@Diagnosedan the engine control unit on the engine makes perfect sense to someone, does not mean it is smart. If the ECU was on the transmission that would be odd.

[@kc360awareness]

Almost all Diesel engines in the states have ECU mounted directly to the engine. It’s not a problem for them and they plenty of heat not to mention vibration too.

[@4BillC]

@@kc360awareness I've seen them in the engine bay (which I feel isn't smart either) but never on the engine. I'm not a diesel guy but the few I've seen and worked on also didn't have and ecu on top the engine!

[@kc360awareness]

@@4BillC oh I totally agree that particular ECM placement is odd. Easy to get to for diagnosis and replacement ... sure, but definitely less than ideal for long service life. The diesel units I referred to are almost always on the lower/intake side of the engine, not the top (that’s the coolest placement I suppose). They are installed with standoffs to allow airflow between the engine and ECM plus do have an ECM temp data PID, so you know it’s being monitored too.

[@moestrei]

I would be pissed to find out that my expensive scan tool can't do the job and i need the factory tool.

[@tjroelsma]

Why? It's quite posible car manufacturers have some features in their factory tool they mark as proprietary, so a third party scan tool isn't allowed to use those.

[@moestrei]

@@tjroelsma Ah....you mean the emission cheating part..... otherwise there are consumer laws in many countries to assure 3rd parties can repair a product. This product is obviously non compliant.

[@tjroelsma]

@@moestrei No I don't, because I don't see what the emission scandal has to do with this. I think this car might be from before regulations made it mandatory for manufacturers to allow a third party scantool to communicate with the ECU.

[@moestrei]

@@tjroelsma It was a joke. I rest my case.

[@darkgod79]

Autel scan tools are not expensive by any means. They are literally the least expensive diagnostic computer on the market when comparing advertised functionality. The only aftermarket diagnostic computer I have used that truly has dealer level functionality is Autologic, but they are not cheap.

[@MrBigblock78]

I have been hanging for your next vid Dan. Best entertainment on KZbin. Love your channel and the way you go about diagnosing faults.

[@Diagnosedan]

Thank you very much

[@dyankopetkov9056]

Great approach for solving problems! Thanks for your great videos Dan!

[@Diagnosedan]

Thank you

[@Prakicov]

Every black E class station vagon looks like a hearse. MB says " The Best or Nothing"... If over the engine ECU is the best, what is the worse ?

[@Diagnosedan]

Thanks for watching 👍

[@mrgrumpy5116]

putting in in the scuttle drain?

[@jond1536]

your right, i saw one just today here in Portland, OR USA and I did think it was a hearse, ha what a co-wink-e-dink.

[@juerbert1]

Next time they put the engine computer on or into the exhaust🔥manifold, just to prove a point, namely total reliability !? Daimler Benz should pay for this computer, because of stuffed 😈up design engineering !! Billy goats 🐐🐐🐐 !!!

[@ikocheratcr]

I do not think MB is alone here... I get the point of putting the ECU on top of the engine, no water to worry about (if not check other cars that place it where there is lots of water) , but also, see the automatic transmission where the ECU is inside, immersed in the fluid ... yeah.

[@wholeNwon]

If they had to pay for defective engineering, construction or quality control, they'd be out of business.

[@Diagnosedan]

😂😂👍

[@VoltageDropDiagnostics]

Your videos are always top notch! Thanks for sharing Dan!

[@Diagnosedan]

Thanks for taking the time to watch one of my video's its really appriciated. Thanks alot!

[@filicruz7566]

Thanks for showed that book I have been looking around something like that and I couldn't till today.overall,Sr.you are one of the most trusted and enthusiastic people that I can definitely learn from thanks 😊 again. Excellent job.👌

[@Diagnosedan]

Thank you very much 👍

[@peterhol3]

look at the interior lighting , difference when hot or cold [2 min. in ] lets look more of the video ................ AC tronics i presume

[@Diagnosedan]

Thanks for watching 👍

[@JOMaMa..]

Detroit diesel been doing this reliably for long years

[@Diagnosedan]

Most heavy duty trucks have it that way. By placing it between the engine and the Hood the Heat is trapped and radiates back. On a truck there is usualy more room for airflow/cooling around the engine

[@drongomaster]

I like that you show us those unsuccessful times such as when you heat the ecm up and it still cranks. Awesome channel. Really enjoy watching your vids man.

[@Diagnosedan]

Thank you very much!

[@john-wk4ks]

i only came across your videos yesterday evening but have watched quite a few now cant stop watching . nice to see a mechanic not afraid to get their hands dirty and not wear rubber gloves your videos should be mandatory watching for any apprentice mechanic you are not only a mechanic you are an electrician a producer a host a editor a teacher and it would not surprise at all if you were playing all of the instruments in the music on your videos

[@Diagnosedan]

Thanks for watching my video's its really appriciated 👍

[@RealButcher]

Wow, this playes like Dr House. And engine computer ON? the engine, damn. Engineers at Mercedes.... where do we put the temperature sensitive computerbox...eh? Well, put it on the engine. Seems legit. That's just dumb.

[@Diagnosedan]

😂😂👍

[@obsoleteprofessor2034]

Out take... "Oops...forgot to put the relay back in.."

[@Diagnosedan]

😂😂👍

[@ClassicMercedesUK]

Nice work Dan! You are a very diligent and persistent guy! Never give up!

[@Diagnosedan]

Thanks for the kind words!

[@corei51]

Weer een goeie uitleg van een storing, een rustige heldere uitleg dat is niet voor iedereen wegelegd op het internet 👍

[@Diagnosedan]

Bedankt voor het kijken naar mijn video, wordt gewaardeerd 👍

[@bodgitandleggitgarage]

Boom

[@Diagnosedan]

Good to see you here it's an honor!

[@midlam99]

Always very educational Dan. Love your work. Would like to see you more often!

[@Diagnosedan]

Thank you

[@Russell_Duncan]

First class Danny. You like to leave no doubt with your diagnosis. Really enjoyed this one. 👍

[@Diagnosedan]

Thanks Russell

[@johnaclark1]

At 0:55, without having watched the rest of the video, I guessed the engine computer, seeing it sitting right there on top of a hot engine. What a dumb idea.

[@Diagnosedan]

Smart thinking! Placing the PCM on top of the engine does have some major disadvantages 😂

[@richard1835]

Can't wait for DiagnoseDan Diagnostic videos to show up. Thank you DiagnoseDan. Thumbs up

[@Diagnosedan]

Thanks!

[@alecbollinger7748]

As a mechanic student this content is ridiculous valuable Id pay for more of it

[@Diagnosedan]

Thank you!

[@irontrev1640]

This was great 👍 thank you for the chance to see you fix another one !!

[@Diagnosedan]

My pleasure!

[@dalehamlin7383]

Genius work Sir.........! Excellent combination of skill, patience, science, and of course, common sense. Thanks for the great video. Young upcoming mechanics, this is what you strive for......!

[@Diagnosedan]

Thanks for the great comment Dale! It's appriciated

[@malcolmcowong]

Brilliant job Dan, am sure many benefited from watching your videos do keep up with the great work👍🏻

[@johnmehaffey9953]

Great post as usual dan I really love the way you go through everything and do proper diagnosis, ps you suit the beard

[@Diagnosedan]

Thanks!🧔

[@thegeekdreams]

Dan, a wonderful diagnosis. You rock. Besides, a happy customer, you also had a happy “google fit” with the miles you had to walk in and out of the car. 😂🙏

[@Diagnosedan]

Almost had a hearth attack from all those steps😂

[@Angelo80907]

I don’t read the comments till the end of the video making sure there’s not a spoiler alert. This was awesome thanks for the hard work you put in diagnosing each car!!!

[@Diagnosedan]

Thanks for watching Angel

[@daveg872]

A brilliant video. It really shows the power of knowledge and systematic troubleshooting. All of us consumers wish we had our own Dan for non-routine issues.

[@Diagnosedan]

Thanks Dave,!

[@panzerveps]

Great diag! I'm a candidate for replacing a master technician who recently quit at our shop, and I've been bombarded with diagnosis like this recently. Keeping your advice in the back of my head has been a great help, so thank you for that!

[@Diagnosedan]

Good luck!

[@Kevin-gx9fk]

Being a Automation and robotic service technicien I really enjoy your content. Your diagnostic critical thinking is really good

[@Diagnosedan]

Thanks Kevin, that's a big compliment coming from you!

[@mxssxm]

i love your videos 👍😊 I especially like that after the diagnosis, the end doesn't come straight away. I like that you want to know why something has broken and let us be part of it. Thank you very much and thumbs up 👍👍👍👍👍👍

[@Diagnosedan]

Thank you very much

[@iamvehicle8596]

I love your videos! You don't waste time looking in the wrong place because you use your knowledge and logic. I also like your professional workshop equipment. I'm looking forward to more videos and thanks for sharing your solution with the world. Autel is number one for me. I recommend to all a combination of IM608 and MK908. They are powerful tools.

[@Diagnosedan]

They are great tools! Thanks for watching

[@motheolebelo]

Outstanding diagnosis and repair Dan. Interesting that the Modules thought that everything is fine and no issues to report except that the issue was the main ECU of the motor. Thumbs up

[@Diagnosedan]

Thanks for watching

[@twinbmx1]

Nice work! Really good video for showing a diagnosis from start to finish. Smart diagnosing with the heat gun. Sometimes you just gotta think simple instead of over think it and get frustrated and misdiagnose. Thank you

[@Diagnosedan]

You are right😁