Mercedes ML320 CDI poor cold start. Fault finding and repair.

Рет қаралды 36,819

Күн бұрын

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Hi
This W164 with the OM642 engine, came to me with several issues!...
On this video, I will be tackling the poor cold start...
The owner replaced all the 6 glow plugs, and despite the improvement, still hard to start when cold...
On the engine ECU, the error code 2270-4...
Follow me on this video to find out what was the problem and how to resolve it.
Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching!

Пікірлер: 92

@beluxauto5968 3 жыл бұрын

Nice video . You even showed the bus waveform which should be interesting for people to see . Like you said , pretty straight forward but you took the long way around . Much appreciated Luis .

@LMAutoRepairs 3 жыл бұрын

😊 Thanks! 👍👍👍

@trevormansfield6495 3 жыл бұрын

good thorough diagnostics. I learnt afew things. Thanks as always

@LMAutoRepairs 3 жыл бұрын

😊 Thanks! 👍👍👍

@januszderen1253 3 жыл бұрын

Another fantastic job and everything is proved, not just guessed as a lot of workshops do. Well done :)

@LMAutoRepairs 3 жыл бұрын

😊 Thanks! For watching and for your comment! 👍👍👍

@LZDEN 3 жыл бұрын

splendid work as always.

@LMAutoRepairs 3 жыл бұрын

😊 👍👍👍

@ErshadBMW 3 жыл бұрын

I like the way you diagnose 👍🏻

@LMAutoRepairs 3 жыл бұрын

😊 Thanks! 👍👍👍

@mrgrumpy5116 3 жыл бұрын

thanks for the videos, always something interesting, and far better to learn from someone else's experience as we don't have to spend time or money ..

@LMAutoRepairs 3 жыл бұрын

😊 A shame some people does not see it that way... Thanks... for watching and for your comment!

@duncanpoundcake 3 ай бұрын

Next level stuff. Awesome skills 🎉

@LMAutoRepairs 3 ай бұрын

☺️ Thanks! 👍👍👍

@nemanjadzombic6101 3 жыл бұрын

Thank you for another great video!!! Can't believe you couldn't sort the old module :)

@LMAutoRepairs 3 жыл бұрын

Thanks!

@Luka-ov1hu 2 жыл бұрын

Hello Nemanja are you from Balkan

@nemanjadzombic6101 2 жыл бұрын

@@Luka-ov1hu Yes, from Serbia.

@omareid8166 3 жыл бұрын

Very good Keep doing this

@LMAutoRepairs 3 жыл бұрын

Thanks! 👍👍👍

@electronic7979 3 жыл бұрын

Nice repair video 👍

@LMAutoRepairs 3 жыл бұрын

Thanks! 👍👍👍

@florinsiladi9118 3 жыл бұрын

And like always.. tkanks for sharing 🙃

@LMAutoRepairs 3 жыл бұрын

😊 👍👍👍

@alexanderfuria1403 3 жыл бұрын

Sehr gutes Video, endlich kann ich das verstehen was auf dem Laptop steht, ist auf deutsch :-) auch auf dem Steuergerät steht Vorglühsteuergerät :-)

@serolunarrosa 5 ай бұрын

Thanks 🙏

@yuby985 3 жыл бұрын

Always easy to beat big problems.........🥳🥳🥳

@LMAutoRepairs 3 жыл бұрын

😊 👍👍👍

@danhayes3546 3 жыл бұрын

Great work did it stop it smoking on start up 👍

@LMAutoRepairs 3 жыл бұрын

Yep... That smoke was just the unburnt fuel from the few cranks without starting... After this was perfect! 👍👍👍

@mikimiki195 3 жыл бұрын

Thanks

@LMAutoRepairs 3 жыл бұрын

👍👍👍

@SabretoothBarnacle 3 жыл бұрын

Morning everyone👍🏻

@LMAutoRepairs 3 жыл бұрын

👍👍👍

@neilmurphy845 3 жыл бұрын

Morning

@terencesibley6216 8 ай бұрын

Great vids. Do you have wiring diagram at all for this and is there anyway to force the module to work. Keep up the great work

@millionaireslifestyle_ 3 ай бұрын

Hi, ich habe das Glühkerzen Steuergerät getauscht habe trotzdem kaltstart probleme! was kann es sonst sein? mein mechaniker hat einen neuen injektor eingebaut und trotzdem startet er nicht. erst beim 2. mal

@mariomario3113 3 жыл бұрын

Good job🥇🥇🥇🥇🥇

@LMAutoRepairs 3 жыл бұрын

Thanks! 😊

@retractablehybrid6110 Жыл бұрын

I've been having the same issue for over a year... I have replaced the glow plugs twice and the relay but it still does the same thing. It's starting ok just now because the temperature is going up but I'm out of options for it? No codes either... I only have stored codes relating to the pedal position sensor.

@LMAutoRepairs Жыл бұрын

Have you checked powers and grounds to the module? Have you checked LIN bus to the module? Have you checked that the glow plugs are being activated? Have you checked live data? I would resolve that pedal fault as well... as it might be influencing the starting of the car... 👍👍👍

@mammutit 3 жыл бұрын

since that was the only problem if the unit was very expensive this could have been fixed by using the signal of one of the working outputs to a relay and driving the 4 other outputs with the extra relay. Not sexy but would work for old crappy cars with expensive unit

@LMAutoRepairs 3 жыл бұрын

Yes... it would work... 👍👍👍

@chrisdodge2429 3 жыл бұрын

buen video. Disculpa en donde compraste tu osciloacopio.

@LMAutoRepairs 3 жыл бұрын

eBay at the time... Bought it years ago... Thank you for watching!

@ADDAUTOMOBILESERVICES 3 жыл бұрын

👍

@LMAutoRepairs 3 жыл бұрын

👍👍👍

@felipeblank5876 4 ай бұрын

Perfeito

@LMAutoRepairs 4 ай бұрын

😊 Obrigado! 👍👍👍

@r2sa Жыл бұрын

Hi, How can I contact with you regarding ML ignition damage?

@zzzzzzzzz865 3 жыл бұрын

Hi, can we contact you for work if we have an issue with our car? I live close by.

@putoluisduro 2 жыл бұрын

Great video.. just a question You had the glow plug light ON after start the car?

@LMAutoRepairs 2 жыл бұрын

No... The glow plug light stays on for a few seconds after the engine started if there is an issue with the glow plugs... 👍👍👍

@putoluisduro 2 жыл бұрын

@@LMAutoRepairs I tested the glow plugs and they are all working properly!... it's hard for the car to start when it's cold.. the light stays on for a few seconds after start the car.. In winter the car just doesn't start..

@LMAutoRepairs 2 жыл бұрын

Have you tested the controller? Have you scanned the car?

@putoluisduro 2 жыл бұрын

The scanner doesn't show any errors....

@LMAutoRepairs 2 жыл бұрын

That's strange... but test the controller output... if is not sending anything to the glow plugs, there most likely a bad controller...

@Nikosmykoniaths Жыл бұрын

What's the name of the module? What to ask for at mercedes? Thanks

@LMAutoRepairs Жыл бұрын

Glow plug controller... 👍👍👍

@aymenmohamed1134 Жыл бұрын

👍🏻👍🏻👍🏻🌷

@LMAutoRepairs Жыл бұрын

😊 👍👍👍

@serolunarrosa 5 ай бұрын

Hi, could you please tell me where to buy this type of needle for pins, a link will help me very much, thank you 🙏

@LMAutoRepairs 5 ай бұрын

Have you tried places like ebay? Search for "multimeter probes" 👍👍👍

@serolunarrosa 5 ай бұрын

Thanks 🙏

@fuzzs8970 3 жыл бұрын

Hi! I would have opened the box too. Just wondering if anyone managed to fix one with problems. What goes wrong in that circuit? Thank you for sharing your work

@LMAutoRepairs 3 жыл бұрын

I know the old ones have an internal independent fuse for each glow plug... if the plug shorts burns the fuse... and even though the old module are also not serviceable, you can open them and solder a new fuse... I know cause I have done them... This one, couldn't see any fuses... I still believe that the module disables the output to the glow plug... either my DAS was is not really setup to reset them, or there is something else that I not aware of... Thank you for watching and for your comment!

@michaelmustang69 3 жыл бұрын

@@LMAutoRepairs i managed to repair one of these on e220 cdi w211 facelift , i soldered those frog laps as you called ,thus saving a few quid.

@LMAutoRepairs 3 жыл бұрын

Lucky you... As I mentioned on the video, this was all good... wish that was the issue with this one... unfortunately was not... Thank you for watching and for your comment! 👍👍👍

@neilmurphy845 3 жыл бұрын

You can tell immediately that the glow plugs are either switched off or aren't working by the sound of the engine why do they have to have modules for everything why not just powers and ground like they used to have for glow plugs

@LMAutoRepairs 3 жыл бұрын

😊 They are used in other circumstances on newer cars... not just during cold start... I guess to probably make them to work more effectively during those times... 👍👍👍

@neilmurphy845 3 жыл бұрын

@@LMAutoRepairs that's kinda strange because they seem to run fine once started I'd say the real reason is so that people can't fix them that easy especially on diesel cars diesel pollut a lot

@joeluang8695 3 жыл бұрын

Having a separate module for the glow plugs is good engineering, otherwise a shorted glow plug will take-out a more expensive ECU $$$.

@neilmurphy845 3 жыл бұрын

@@joeluang8695 Oh that makes sense but why do they still use them once the engine is started

@LMAutoRepairs 3 жыл бұрын

I have a video coming on a BMW explaining that... I know this is a mercedes, not a BMW... but most likely the principle will be very similar if not the same... stay tuned... 👍

@Autodiagnosistz 3 жыл бұрын

Hi friend.may I know which software name in Panasonic laptop?

@fuzzs8970 3 жыл бұрын

Probably Star

@LMAutoRepairs 3 жыл бұрын

Correct... 👍👍👍

@mewe2909 2 жыл бұрын

how much is the module cost.

@LMAutoRepairs 2 жыл бұрын

Was around £80 or so... Ring mercedes and ask... Ebay is a good place to look as well... 👍👍👍

@pk6336158 3 жыл бұрын

Hey couldn't you not use a heat sensor, or thermal sensor to see who gets hot on a cold day ?

@LMAutoRepairs 3 жыл бұрын

What do you mean? 😊

@pk6336158 3 жыл бұрын

@@LMAutoRepairs the glow plugs, point the thermal camera at the side of the engine that has the glow plugs and it might of shown 3 glowing instead of 4, I never tried just a thought

@LMAutoRepairs 3 жыл бұрын

I guess it would... 👍

@mariomario3113 3 жыл бұрын

What piercings using you, please

@LMAutoRepairs 3 жыл бұрын

What do you mean?

@Infiniti25 3 жыл бұрын

@@LMAutoRepairs think he is talking about the wires you were sticking into the connector maybe? And maybe the probe with the bulb in

@neroosisy 2 жыл бұрын

@@Infiniti25 maybe he’s asking where to get his ears pierced 😂

@neilmurphy845 3 жыл бұрын

I think the module is dead especially from where it is placed on the engine

@LMAutoRepairs 3 жыл бұрын

For sure it doesn't help...

@finnbismark 3 жыл бұрын

kzfaq.info/get/bejne/fbZ6drqJxK6xiZ8.html this video shows what the problem inside the glow plug control module and what wires needed to be replaced to fix it with buying a new part.

@LMAutoRepairs 3 жыл бұрын

Only if this was the issue in this case... If you watched the entire video, you have seen that the issue in this case was something different.... And just in case you wonder, even though I mentioned it in the video, I measured the glow plugs circuits with faults, from the pin to the pcb, checking ok, so the "frog" wires were all good... Actually, would have been an easy repair if these wires were the issue... 😋 Thank you for watching and for your comment!