Hi. I have (or maybe had, now) a 2018 MB GLS 450 4MATIC, with about 100,000 on the OD. The car suddenly seemed to go from one problem to another. First, after taking it in for basic maintenance, with the check engine light on, the mechanic pulled up code indicating wonky thermostat. Okay, we got that replaced - but the check engine light remained on. The mechanic pulled up code(s) indicating camshaft assembly issues. I drove car home and returned to dealership a few days later, 4 April, 2024, for inspection prep-work. After some tear-down of the car, 2 weeks later, extended warranty company approved claim. Finally underway with that job, upon completion, the check engine light remained on. Again, the mechanic pulled up another code which initially indicated an original sensor issue but that code somehow changed and became one that addressed random misfiring. Along the way, service department manager wanted my approval for further tear-down including dropping the engine out before an inspector would come again to verify on behalf of the extended warranty company. This time I said “no”, aware of certain exclusionary clauses in the service contract - one of them being carbon buildup, hardly uncommon. My car has been in the shop since 4 April. I have decided to get a replacement vehicle and cash out my extended warranty policy. Any thoughts on any of this?
Easy job, thanks for the tutorial! I'm still getting a misfire after changing out the plugs, so guess I need to do-over with coil packs :-/ FYI, you can press the red button the driver's side strut and the hood opens another 15^ or so. Really makes it nice for getting those back plugs!
Job takes about 2 hours. These are the plugs I used-www.amazon.com/NGK-PLKR7A-Laser-Platinum-Spark/dp/B001RLRT9Q. Plugs are required maintenance on these vehicles every 91,000 miles or 5 years.
I dont have a specific link to the oe part. I purchased these through my parts distributor. I normally purchase stuff I can't get from them through fcp euro. Hard to beat their prices, and they offer a lifetime warranty on all parts.
GEARWRENCH 5 Pc. 3/8" Drive 6 Pt. Magnetic Swivel Spark Plug Socket Set, 80601 , Black www.amazon.com/dp/B06XCR8RF3/ref=cm_sw_r_apan_glt_fabc_YRTPCGE9ZACPNPW4R6P2 This is the set I have.
Spec is 0.8mm. Most spark plugs come pre-gapped new. If you are using platinum or iridium tipped plugs I wouldn't try messing with the gap, as you run the risk of breaking the tip off.
NGK 4288 or PLKR7A, it’s the same plug. Amazon has them. Changed my 2011 GL450 last year and changing my 12 GL550 this weekend. NGK is what I pulled from my 550 last weekend and they are original. Bosch is fine as well.
@@joezoborowski2773 it’s front passenger side.. didn’t even have to take any major parts off.. did the coil pack for about 116$ and took about 7 minutes
Great Job, simple explanation, no needless talk, this is how all instruction videos should be.
Your gl 450 vids are CLUTCH for me. Thanks so much!
Really enjoying the videos bud! 👍
Enjoyed this, just bought my bride a 2014 so I’m subscribed & looking forward to more
Hi. I have (or maybe had, now) a 2018 MB GLS 450 4MATIC, with about 100,000 on the OD.
The car suddenly seemed to go from one problem to another. First, after taking it in for basic maintenance, with the check engine light on, the mechanic pulled up code indicating wonky thermostat. Okay, we got that replaced - but the check engine light remained on.
The mechanic pulled up code(s) indicating camshaft assembly issues.
I drove car home and returned to dealership a few days later, 4 April, 2024, for inspection prep-work.
After some tear-down of the car, 2 weeks later, extended warranty company approved claim. Finally underway with that job, upon completion, the check engine light remained on.
Again, the mechanic pulled up
another code which initially indicated an original sensor issue but that code somehow changed and became one that addressed random misfiring.
Along the way, service department manager wanted my approval for further tear-down including dropping the engine out before an inspector would come again to verify on behalf of the extended warranty company.
This time I said “no”, aware of certain exclusionary clauses in the service contract - one of them being carbon buildup, hardly uncommon.
My car has been in the shop since 4 April. I have decided to get a replacement vehicle and cash out my extended warranty policy.
Any thoughts on any of this?
Easy job, thanks for the tutorial! I'm still getting a misfire after changing out the plugs, so guess I need to do-over with coil packs :-/ FYI, you can press the red button the driver's side strut and the hood opens another 15^ or so. Really makes it nice for getting those back plugs!
Run a compression test if you are still getting a misfire after replacing all those things
@@orionjones9203 Coils fixed it... I just went ahead and replaced all of them at the time.
Great video!
Nice video. Thank you!!!
Boom. Fire video
Great presentation 👏 👌 👍
what are the gap specs for those spark plugs you put in
thanks for the excellent video, one question: do you have the part number of the spark plug replacement? were OEM or aftermarket?
They were aftermarket. Bosh part number YR7MPP33.
Just came across your channel.. great video. Do you think you can make one showing the location of all O2 sensors?
I unfortunately no longer own this vehicle.
great video, do I have to set the gap on the new spark plugs? thanks
The come pre gapped. Just make sure they aren't smashed down from shipping and you should be good.
Thanks for sharing your knowledge. What year is this car?
It's a 2008
How long a job is it to replace all plugs. What type of plugs did you use? How long do the plugs last?
Are iridium plugs required?
Job takes about 2 hours. These are the plugs I used-www.amazon.com/NGK-PLKR7A-Laser-Platinum-Spark/dp/B001RLRT9Q. Plugs are required maintenance on these vehicles every 91,000 miles or 5 years.
Bro nice job I have a gl450 2010 do you have a link for the original part thank you
I dont have a specific link to the oe part. I purchased these through my parts distributor. I normally purchase stuff I can't get from them through fcp euro. Hard to beat their prices, and they offer a lifetime warranty on all parts.
Wonder if you could provide a link to spark plug removal tool. Thanks a lot.
GEARWRENCH 5 Pc. 3/8" Drive 6 Pt. Magnetic Swivel Spark Plug Socket Set, 80601 , Black www.amazon.com/dp/B06XCR8RF3/ref=cm_sw_r_apan_glt_fabc_YRTPCGE9ZACPNPW4R6P2
This is the set I have.
And what’s the correct gap calibration for the new spark plugs?
Spec is 0.8mm. Most spark plugs come pre-gapped new. If you are using platinum or iridium tipped plugs I wouldn't try messing with the gap, as you run the risk of breaking the tip off.
Do you have the part number for the plugs? Or a link?
NGK 4288 or PLKR7A, it’s the same plug.
Amazon has them. Changed my 2011 GL450 last year and changing my 12 GL550 this weekend. NGK is what I pulled from my 550 last weekend and they are original.
Bosch is fine as well.
👍
What the torque for the plugs??
10:57 he puts it in the video
Anti-seize on the plugs?
I normally don't out anti-seize on the plugs unless the manufacturer recommends it.
Anyone tell me the layout of the cylinders… I have a cylinder 1 misfire and I don’t know which one it is
Cylinder #1 is the forward most cylinder on the passenger side of the engine.
Did you resolve the misfire problem? How?
@@joezoborowski2773 misfire ended up being a faulty ignition coil.
@@joezoborowski2773 it’s front passenger side.. didn’t even have to take any major parts off.. did the coil pack for about 116$ and took about 7 minutes
Question my wife has the same car could you change mine?
Why don't you say the order of the spark plugs 1-8. The order. Would make these videos much better.
i want to know the answer to this too.
Me 3!
Passangers side front to rear 1,2,3,4 - drivers side front to rear 5,6,7,8
Great video. 👍
I have a 2015 GL 550. 54k on the clock. Is the procedure the same? Did your plugs come pre gapped?
Should be the same process as both engines are from the same engine family. Spark plugs do come pre-gapped.