ENGINE MUST BE UP TO TEMPERATURE BEFORE TRYING TO REMOVE A GLOW PLUG!

so much prep work everyone is doing when in fact, my 07 204 (OM646.811) had factory glowplugs and all i did was put some wd40 on every glowplug, waited overnight, went to the car in the morning (ie. cold engine) and slowly removed them with my ratchet, in order to not break them with impact gun... 10 minute job and all was fine ! wouldnt want to work on hot engine to burn myself :P

Thanks. I will be replacing the #1 glow plug today. Have run a Bosch on #3 cylinder for 100K without problems. 2005 E320 CDI with almost a quarter million miles. Still going strong.

We both own a 320CDI, and it seems both of the cars being at a similar milage, therefore with similar maintenance issues. When I get an idea to change the glow plugs, it will materialise in my KZfaq feed. As if by magic! :D Love it!

Another helpful video by you. Love how you manage to pack all the detailed instructions and informations into it and it's still easily understandable.

Project farm rocks the party that rocks the body.

I also have this diesel E320 CDI. I Love The Car. The torque is amazing. Please keep your videos going. Thanks

Thank you 🙏🏼 . The 1/4 impact is definitely the key. I bought a really cheap one that only generates 80Nmx3000 min but that’s plenty. I had to let it rattle (wear ear defenders) for 5 minutes to get a plug out that probably was in there for 285000 km as it was a different brand and had corrosion on the body . Penetrating MoS fluid a week before and a daily 300 km drive. Hot engine.

I finally got around to changing 2 of my plugs, one came out like it was installed yesterday but boy, I spend 45minutes using, 1/4 impact, torque wrench, 3/8 Milwaukee impact on setting 1, then 2. Glow plug would move a hair, I would then go the other way, it would go 2 steps forward, then 3 steps back, it would bind up again .With the combination of all 3 tools and patience, I was finally able to free up the plug and remove without breaking.

Cracking video. You have a good presentation style. Clear and concise! Subscribed!

Please, before unbolting the glow plug, CLEAN the area around the plug with brake cleaner and compressed air. You don't want the debris around those plugs to fall into the cylinder. It is even a better idea to clean that area BEFORE you spray the penetrant the day before. Ant the plugs must be torqued to 8NM (whatever that is in foot-pounds/inch).

Excellent video, and I suspect I will now be a big fan. I currently own a 2006 E320, 2010 GL350 Bluetec (paperweight... thanks, sis), and 1984 190D. First car was a '69 220D. Love me some diesel Benz.

I sprayed all mine with plusgas for a week before and removed them with no problem at all, I also used a set of spark plug pliers with curved tips to grab the body of the plug which avoids damaging the plugs

Great video you saved me a lot of money and time..thank you

Great Vids. Please keep them up.

I replaced all 6 glow plugs the check engine light is out, think you for your videos.

I found that applying plus gas’s every day for a week and getting the engine good and hot always works , love the idea of using a impact driver but I’ve done four pt cruiser crds witch use the same engine that Mercedes use and found that with the plus gas NONE of the sixteen plugs I’ve replaced have been tight and in some cases they have actually worked themselves loose !

The key is the penetrating fluid. I used ATF and acetone for mine. I am not so keen on using power tools for removal but can see the point. I invested in a reamer also to clean out the bores better and cleans the threads also. The plastic caps on mine just crumbled from age. They are easily replaced though. I used copper anti-seize on mine and it appears to work well. I remove them once every couple of years just to check on them and make sure they don't seize into the head. Personally, I replace on fail for these even though people would say they are manufactured about the same time and would expect them to fail around the same time. If two fail within months of each other, then I would consider replacing them all. Injector seals are the ones I would just go ahead and do all of them if one fails, the others are not far behind. I'd be interested in a video (I know there are plenty) about how you would deal with black death. I have my own method but always interested in how others handle it.Thanks for sharing the videos, I always enjoy them!

Can’t believe you didn’t gently hand start the new plugs!, using power tools to drive plugs into hole is quickest way to cross thread . Also using power tools to remove heater plugs can snap them. Better to use a socket and test how tight they are and then use power tools.

Hi MBDieselfreak, thanks for your great videos on the OM648 CDI engines. Fantastic to see you working on Mercedes-Benz vehicles! I just had the glow plugs changed and now I need to replace the glow plug relay module. Can you please let me know where on the OM648 is the position of the module? Thank you

Only use ceramic paste. And you should of course use a torque wrench, both for removing and installing glow plugs.

Awesome video! What setting is the impact driver on? High or low setting?

Thank you very very much. 💪👍👍

Very cool thanks

Just soak them with engine oil. Syringe, with 5w30. Put in every glow plugs , drive few days and attempt them when engine is hot. No need any impact gun. Just do it slowly. Works every time :)

A minor point, but spraying the penetrant AFTER removing the caps means more on the threads and less on the plastic connectors.

Don’t know what torque that impact driver can deliver, but my Ryobi is spec’d to deliver 169 Nm, over 6X the recommended 25 Nm. Jus saying… But otherwise, I do appreciate very much your two videos! 😊

What type of OB2 scanner do you use for the E320 diesel ? Thanks in advance

Great video as always. Do you reccomend only replacing the defective glow plugs or all at once? Is there any harm in replacing those partially as they go defective?

Hi MBDieselfreak, what is the max nm torque of your impact wrench?

Thank you for both part and 2.. My question is how do you test first without taking them out to see if you have bad one (s)?? Thanks again.. I like that you dont have Goofy Music as a distraction!! Just Great teaching!!

I have a GL350 that will not start up. The ignition system is on and when you push the start button, the engine cranks over but will not start. What do you think might be keeping it from starting? fuse, injectors, glow plugs?

Can we use the 12 volt plugs with a relay and a push botton?

What did you said the impact pressure on your drill thank you

Gooood

Can we have a video on Valve cover replacement? Thanks

I love d video

Hi MBDiesel, I have a 2006 E320 CDI with only 63,000 miles on it. No problem of any kind but as a maintenance measure I want to take out the glow plugs, clean and put them back with a coating of anti ceasing compound. My question is which is the safest impact wrench to use on the glow plugs and what should be its maximum torquing power. Any recommendation for the impact wrench. Thanks.

What torque is the drill?

I notised that the impact driver you are using is no longer available will the “Bosch Freak 18V Variable Speed Brushless Cordless Impact Driver GDX18V-1800B12” work instead?

Did you not use a torque wrench to tighten them at all. Ive got a 2007 Mercedes e320 cdi estate. 3 ltr v6. Im dreading the thought of changing mine. Wish me luck. Any further tips please?

Love your videos and would like to bring my car at your shop for struts(4), trans flush and updating as well as injector leakdown testing and possible change. Let me know if it would make for some good content videos.

Hi , how can I contact you. I have couple of question about 2006 Mercedes E320 CDI Thanks

I have a merc cls 350, changed plugs twice on it but the last time I twisted too hard and now the plug 8mm just spins and can't get it out, any ideas please how I can get this out and to why it's spinning?

Mb where are you located

Hi I have a turbo and oil leak you have a shop I living in Nashville tn mi mercedes Benz is a ml350 bluetec 2011 how can contact you thanks.

I am looking for a video , how to replace intake manifold 2006 Benz E320 CDI

Bosch 25618 1/4 hex impact driver

If I wanted to ream the threads for the glow plug what tap would I use?

PLEASE PLEASE DO A BRAKE FLUID CHANGE/FLUSH JOB FOR THE "SBC" SYSTEM FOR A DIYER----THX MUCH!!!!

Not really required to get the Fluid Film out. Just leave it. It will only do good and loosen carbon wherever it gets to, and it really creeps. I actually use Fluid Film for loosening the glow plugs!

Laughs…. Warm engine, clean crap out around plug, drop a touch of diesel on each plug (there’s your lubricant), smoke a cigarette, drink coffee. Slightest turn to tighten then gently loosen off. Viola

As I understand, you are doin it on a cold engine?

Did you ever look at idle fuel consumption of om648? Mine is 0.9Gal/hour (mine is tuned, not sure what exactly tuner did to it). I read that gasoline cars should consume more than diesel, but my Hyundai Azera 2006 3.8L consumes about 0.38G/h (with A/C running).

Guys, I broke 1 injector mount bolt. It sits deep inside block. I was able to drill middle portion out 3/16, but extractor didn't help. So I was going to predrill and retap the block, but unable to find m6 1.0 long reach tap and long drill bit. Can someone please suggest me something?

Home Joe why your engine so dirty this can plug your injectors ha ha ha

how to make a video where everyone fails at trying to make it

Using hammer is very very risky man