2014 and up GLK Spark Plug Replacement

Welcome back to the channel. Sorry for the big gap between videos but things have been hectic. In this video I go over how to perform a spark plug replacement on a 2014 and newer GLK with the 276 v6 engine and what tools you will need to complete. This video was requested by none other than one of you. If you have a request for a video please leave a comment and I will try to accommodate. I thank you for all your support of the channel.
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List Of Tools:
Claw/grabber tool(plastic magnet)
Spark plug tool: a278589000900 or possibly a 15mm six point deep socket(seemed to fit really snug and proper)
Anti-seize paste(for spark plugs treads)
E10 socket or 8mm socket
E8 socket
T30 torx bit
Pocket flat blade screw driver
Spark plug boot or hose pliers
Patience

[@36barnstormer]

I have a '15 GLK350 basic with the 276. I decided that since I have been changing spark plugs in engines for over 60yrs - cars, trucks, motorcycles, lawn mowers, outboard motors, etc that I could do this. What a poorly designed layout this engine has from the service standpoint. I agree individual coils are the state of the art, but my '18 Ford Explorer has 83,000 miles with the original plugs and when (and if) I change them it is a piece of cake compared to this package. HOWEVER, I wanted to THANK YOU for putting this video together. I was able to do the RH side without any added instruction, but 4,5 and 6 took a couple of hours, but not without your help. P.S. Mine is a '15 and the short harness with gray plug is now non removable. And the little bracket on the side is now attached to a bigger, longer bracket that makes removing and reinstalling the spark plug lead even more difficult. Keep up the good work.

[@daniellegaler619]

Glad to see you back.

[@TheSAFiles]

Thanks

[@reinier1234]

I love this engine . Best performing one too. I guess it worth it to do this service and the trouble since it such a good motor

[@donvick2606]

I enjoyed your lesson. Thanks very much😘🥰

[@TheSAFiles]

You are very welcome

[@eddielam9750]

Thank you telling spark plugs no 6 how to remove because I'm trying many many times still cannot remove because not enough room to do that . Now I know better let engine Hot or warm much easy to remove. My MB is same M276 engine .

[@TheSAFiles]

No problem. I'm glad I could help

[@robertswain8665]

Smart video.

[@murraybrandt1773]

Appreciate the post. And that's why this is a $500 job at an indy garage. Lord knows what MB charges. Sad for us DIY types that simple jobs are made this complicated.

[@TheSAFiles]

I know the dealer I work at has a labor rate of $160.00 x 3.5 hours for the job and that's $560.00 in just labor. Parts are probably another $150.00- 200.00 if I had to guess.

[@glasser2819]

these plugs are simple to do... it just takes time.

[@btori88]

there is a ticking noise coming out of the top left side of the intake manifold. The part kind of looks like a vacuum part with a hose attached to it, Do you have any idea what it may be? anyway I can email it?

[@HenryOkoh-vr3go]

Nice one

[@MrCuckoobox]

Thanks for sharing....... "MB really buried the plugs in this one"........ I bet that valve cover gaskets replacement is fun too. That tool is over $100. Not picking on you; you did not design the engine. It seems with all the Newer German Autos, you need a special tool and be a Contortionist to do any repair. Back in the Day, everything was built to last and was "serviceable" and fairly easy to remove and replace. Where did all that go? Thanks for Sharing Again...

[@waynehavens9932]

You don’t need a the Mercedes spark plug tool. You can use a 14mm 12 point socket

[@eddielam9750]

Oh now I knew why my Mercedes difficult to remove No 6 spark plugs because My C class and your GLK had little bit different I saw 7:35 mins your ECU thick cable just behind the check engine oil tube . My C class just in front of the check engine oil tube I means the thick cable just on the the No 6 spark plugs just press the no 6 spark plug , so do you have any reccoment for me ? thank you

[@TheSAFiles]

Ok so I moved the engine control unit harness to the other side of the oil dipstick tube to gain access and more room to get to the coil and plugs. I hope that helps.

[@exxodus1062]

Anyone know the airbox bolts size am missing both

[@ezerod1858]

Hi, nice and useful video. Did you disconnect the battery to unplug the ECU? The ECU needs a relearn when it's plug back to the harness?

[@TheSAFiles]

Mercedes Benz recommends you remove the negative battery terminal when working on any thing electronic. That being said I have access to tools that not all DIY people have so sometimes I don't do it but have never had a problem. There is no relearn either. To be on the safe side I would disconnect the neg. battery terminal.

[@ezerod1858]

@@TheSAFiles Thanks for the tip

[@ricardofierro7185]

No

[@jeffreycicero6685]

Hi I have 93k miles on my 2013 glk, when do they recommend these plugs be replaced?

[@TheSAFiles]

The plugs are due at 50,000 miles or 5 years

[@lorenpeterson657]

A special Mercedes socket isn’t needed to get the plugs out. Just pick up a thin-walled 14mm socket from your favorite online german specialty auto parts store.

[@reinier1234]

Did you have to use an extension to do the driver side to get the socket in? How long ?

[@TheSAFiles]

I have a special tool that is meant for this job specifically that I believe I referenced in the video, but on top of that tool I use a small extension maybe 2-3 inches to get just the right angle. I hope this helps.

[@reinier1234]

Nice vid! So we can get by with a 6 or 12 point 15mm socket ?

[@TheSAFiles]

It is possible but you would have to check it on the new plug to see which one would work best.

[@reinier1234]

Ty sir !

[@ricardofierro7185]

14mm 12 point

[@jmanzirelli6553]

How do you get that bracket out?! Lol removed all the screws I could find and it still won’t budge

[@ricardofierro7185]

There's a screw u take off the bracket on cylinder 5 spark plug

[@montanakas4806]

any known issues on 2m157 engines ? I have 2013 ml63 amg and I will be taking it in for 30k miles service . is it necessary to replace to fuel filters .

[@TheSAFiles]

The dealer should provide you with an estimate on needed repairs. Fuel filters are mounted inside the tank and are very rarely changed unless a problem arises. Seeing as you only have 30k on it you should be golden. no common issues with that engine. It is seven years old so spark plugs, transmission service brake fluid flush, engine drive belt, engine air filters and a/c filters along with either an A or B service will most likely be recommended as these items are due if they have not been done already.

[@montanakas4806]

@@TheSAFiles thank you very much . I actually set up an appointment they said the fuel filter is non serviceable item . Was quoted 800 bucks for the whole job .

[@TheSAFiles]

@@montanakas4806 No problem

[@benjamingrant7139]

What is the special socket? 12 point ,14mm with narrow walls?

[@waynehavens9932]

14mm 12 point

[@JR-km9zg]

Just wondering if you could shake the camera a little more on the next video ,

[@mboss_f8618]

I'm having trouble accessing #6 spark plug. I was able to remove the coil and the boot. Do I have to use a swivel joint or something to remove the plug? Seems like last one is on an angle and hard to get the socket in there. I now have 5 new plugs and one old lol. Thanks

[@TheSAFiles]

There is a special tool that is used to access all spark plugs. You might be able to use a swivel and have it work the same. I Hope this helps

[@mboss_f8618]

@@TheSAFiles Thanks for the reply. Do you happen to have a link for the special tool? I used thin wall 14mm socket to remove and install 5 other plugs. I tried swivel for the 6th plug and still couldn't get access to the spark plug

[@TheSAFiles]

@@mboss_f8618 I can give you the part number for the tool. It's 278-589-00-09-00. You may have to remove the bolt for the dipstick tube and move it out of the way to help with access.

[@msguba1]

@@mboss_f8618 had the same problem.. . gave up and had the dealer do the last plug.

[@mboss_f8618]

@@TheSAFiles appreciate it! 🙏

[@deez6686]

Do have a video take out a crackpully

[@chuguanyu]

How to free the wires for the computer from the bracket you removed? There is a “screw” on the bottom the zip tie that’s screwed onto the bracket.

[@TheSAFiles]

so you can use a trim tool to remove the "clips". the only issue is that they usually break anyways. as long as you route the harness back the same way and some of the clips survive you will be ok. the harness is heavy duty and shouldn't get damaged due to the materials used to make the harness. hope that helps.

[@chuguanyu]

@@TheSAFiles thank you sir

[@TheSAFiles]

@@chuguanyu no problem

[@chuguanyu]

i'm a weekend guy and was able to finish the passenger side no problem last week. the driver side is a beast. i could only get to one plug today and broke a coil connector clip after 3 hours. didn't know that ECU harness was only secured by 1 screw. otherwise i would just pull it out and then figured out how to 'unscrew' that zip tie. those two thick packs of wires are always in the way.

[@marcog1742]

Hi, I’m gonna attempt this tomorrow, I got a p0355 code showing, from what I can find it’s saying it’s cylinder 5 coil pack . Could you tell me which cylinder is 5, that way I can change just that coil pack, thx you

[@TheSAFiles]

Cylinder #5 is going to be the one in the middle on the driver's side.

[@marcog1742]

That’s what I was fearing, thank you so much for responding! You are the goat!

[@marcog1742]

@@TheSAFiles so I changed the plug and coil pack for cylinder 5 and the light was still on so I unplug the battery to reset, it’s off now

[@TheSAFiles]

@@marcog1742 yea other than a scanner to erase the codes this is really the only other way to do it and sometimes it doesn't always work.

[@joelfortune1662]

When disconnecting the ecu, do you need to disconnect the battery?

[@ricardofierro7185]

No

[@Usernamestate9317]

How did you remove the ecu? I’m filling your steps but it is not remove.

[@glasser2819]

ECU has no fasteners, its just snaped into rubber bushings. Simply pull straight up.

[@deez6686]

Can you do video brake work on Mercedes-Benz e350 4matic

[@TheSAFiles]

I have some other videos on Mercedes brakes that pretty much the same on every Mercedes except the old school classic ones and the really new ones. If I manage to get some time and see one ill definitely try to grab a vid for you.

[@U_Kamrc]

May I ask: #1 cylinder is left front and #2 is right front? Thx!

[@TheSAFiles]

If you are looking at the engine from the front bumper the left front is #1. The right front is #4. So it goes #1, #2, #3 on the left and on the right is #4, #5, #6. If you have a v8 it just shifts so 1-4 on the left and 5-8 on the right. Hope this helps

[@U_Kamrc]

@@TheSAFiles thx a lot! Where to send the chocolate? ;-)

[@gk_filer]

Glad I bought a 2012 much easier! Thanks

[@TheSAFiles]

Much easier and you're welcome

[@cesarchirinos8375]

I'm sorry but I did change the ignition coils without disconnecting battery or computer. Pcm is just clip on in a braket ,disconnect vacuum hose for the brake booster for the #6 ignition coil

[@murraybrandt1773]

I had a 2010 and now a 2014. SA Files mentioned that the 2014 has Direct Injection - more power (302hp vs 268hp) and better fuel economy. One of the reasons I switched. I use 2.1L less fuel per 100km in real world driving with the 2014 GLK (11.9l/100 vs 14l/100). However, more power is never 'free'. Eventually comes at a cost... like when plugs need changing :/

[@7150285]

The standard size for that is 1/4 inch socket.

[@aglib5874]

How do you get the metal clamp back on

[@TheSAFiles]

If you are talking about the clamp for the air filter box you can use a set of regular pliers to squeeze it till it clicks locked.

[@marcog1742]

I’m a noob, I just bought all the tools and parts how long will it take me

[@TheSAFiles]

I'm not going to lie to you........its a rough job if its your first time. I would start with the passenger side as it is the easier side and it will get you use to the work procedure. If you're a confident mechanic/technician it shouldn't take longer than 1.5hrs. If you're not that confident just take your time and it will probably take around 2.5 to 3 hours. It really all depends on the coil boots releasing from the spark plugs as this it the hardest part of the repair. The driver rear coil is the hardest coil of the bunch as well as the spark plugs as there is the least amount of room. Good luck and happy wrenching.

[@marcog1742]

@@TheSAFiles the socket I used was too thick but I found a place that sells it with plugs for 60$, did the oil and air filter tho :)

[@jordanbrown5475]

What are the torque specs for the plugs

[@TheSAFiles]

23nm or 17ftlbs

[@ricardofierro7185]

16ft lbs

[@joelunchboxx]

I am rewriting my comment. First, the driver's side is terrible. Practice on the passenger side (getting coil clips to release, spark plug location). On driver's side, IMHO #5 is the worst, #6 next, #4 is easiest but not easy by any measure--there is not much room to work in. I could never get connector on the front of the motor to come apart, however, I found out that you can rotate it CCW and it will come out the bracket. You will probably destroy at least one coil boot-have a set on hand. You will need to remove the dipstick bolt to get room for #6 and it is ALUMINUM, be ready to catch it!! I could not get the plastic pipe to release but was able to work around that problem. On #6 I used a short extension and shorter ratchet to break the plug loose and then turned it our by hand. Did I mention it is very tight back there? Good luck, you will need a fairly good set of tools to pull this off.

[@jamesbyrd1896]

Can you do a valve gasket replacement video? Like right now? LOL! I'm stuck.

[@TheSAFiles]

So there is technically no gaskets as the valve cover is glued to the head. What problem where you having?

[@jamesbyrd1896]

@@TheSAFiles just wanting to know what all else I have to take off. I understand there is no gasket, you have to use the gasket maker. I’ll send pic where I’m at so far.

[@jamesbyrd1896]

I guess i can't post a pic.

[@TheSAFiles]

@@jamesbyrd1896 If you send me your vin number and your email I can shoot you over the actual document for removal.

[@jamesbyrd1896]

@@TheSAFiles Not sure if you sent it but I don't see it in my inbox. Thanks

[@familyfun9474]

How much time does it take you to do this job? Thanks.

[@TheSAFiles]

The job pays 3.5hrs. If you don't take the intake off like I don't in the video you should be able to cut that time significantly but I perform this service quite often so I know all the tools, tricks and have the muscle memory,.

[@HarryThompson-gn9fk]

all over the place

[@shunjohn3567]

What yr is this car

[@TheSAFiles]

Sorry for the late reply. I can't remember the exact year as my mind has forgot but I believe it was a 2015

[@vikingrobot4179]

Most dealers will Most Certainly sell you that tool.

[@roccodicardielli]

I’m sorry but I need to see step by step how to remove everything. That’s what I need the video for. Not saying just pull this out and that out and pointing at them. How? Do you pull them out?! I spend two hours trying to pry the coil free from the wire. Couldn’t figure out the clip system. 😮🔫 I went nuts. Someone shoot me already.

[@teeheeracing9737]

Just take it to a shop

[@worldpeace5853]

Ridiculous that a simple spark plug change is made so complicated. Not sure what MB was thinking. Dealers quote was about $800 for me on 2012 ml350. Stupidity at its best. They need a learn a thing or two from the Japanese!

[@david05111]

I really hate Mercedes. Step 1: Raise the Titanic Step 2: Remove coil pack and complete install Step 3: Sink the Titanic "Engineering" at it's finest

[@TheSAFiles]

We use to have an older gentleman that help train me in my 1st years at the dealership that would say "They are still mad they lost the war"

[@david05111]

@@TheSAFiles haha nailed it