'14 Mercedes E350 PCV VALVE

2014 Mercedes centrifuge cover replacement or pcv valve, on Passanger side. there 2! one on driver and one on Passanger. not a full repair video just what I went through.

[@michaeloliphant8100]

My '14 has the same issue. Gotta love MB for making a simple fix an all-day project. Thanks for showing us the procedure. Not really looking forward to the task.

[@marcog6470]

How’d you make out, contemplating doing it myself

[@ShadowDaHam]

Same, part of the shop jobs and it's a mess... I was given this one at the end of the day saying to get it done. 🤦

[@d.l4055]

Great video, You've demonstrated the breadth of your "General" mechanical "Knowledge" while explaining. "Knowing" basic automotive engineering theory in "Advance" of diving in tends to alleviate fear and apprehension for the DIY. A true technician does NOT fear "Unexpected" challenges. KZbin videos have proven to be helpful in many ways to include bringing in a lot of business over the years due to lack of training. Lack of training becoming evident by either the "Video Maker" and/or the ones who watch. "Knowing When" you're in over your head "Should" also present a sense of value. Value that speaks to what a Good Technician has spent years acquiring. I enjoyed your comment "I'm not cursing yet". Spoke volumes~

[@joeyjohnson203]

Working on my daughters 2014 GLK350 4Matic - same replacement job. Man, You saved my ass! This video was spot on with everything I had to do, and I'd have been screwed without this video! Can't thank you enough for making and posting it!

[@marcog6470]

Is it a hard job?

[@glasser2819]

Doing the plugs and PCV is a great time saver from duplicate work. This PCV design has double failure: 1- failure of round seal that lets all the oil out into the intake. 2- check valve diaphragm that allows unrestricted vacuum. next fix...engine ratling from leaking chain tensioner and the missing "check-valve" Benz left out. When camshaft oil pressure leaks out through tensioner, Four phasers are starved for pressure and get wasted. FYI: this M276 has THREE chains! 👍

[@Hmmm313]

junks

[@goran831]

This also make blue smoke when start the car for short time ?

[@jakubkuzmicki8572]

Did replacing the tensioners fix your rattle issue? Theres a pin in the camshaft adjusters that degrades prematurely and I've read from other forums that the camshaft adjusters actually cause the rattle, not the tensioners..

[@feltro19]

Awesome job brother my 14 just started doing the same thing thank god I have a warranty to fix this one taking it to Benz on Wednesday for the repair good video

[@stanparsonstreeinc]

$ 2000 repair

[@seeingit9337]

Hey Parts shooter thank you sir i did all my intake manifold seals thanks to your video.

[@JettaRedIII]

I know this is an old video by now, but there are a couple of things to note when removing the HPFP. The WIS states to move the crankshaft to 40° after TDC (there are markings on the crank pulley) and the screws/bolts for the HPFP should be removed ½ turn at a time. When starting up after replacing the HPFP, the ignition must be switched on for 5 s before the engine start in order to fill the high- pressure pump with fuel. Damage could occur to the high-pressure pump otherwise. The appropriate WIS document is AR07.02-P-1020FH.

[@timothycampbell7949]

Hi man. I have learned a lot from you. I focus mainly on Honda's and GM cars. Keep wrenching and thanks for great content.

[@YIPPIEIMWINNING]

Great job. Keep up the great work. From 1 tech to another

[@blacklist74]

I have to change the pcv and high pressure fuel pump. Great video. I’m more confident in doing the job now. Thank you

[@leiblingcarms1532]

This is worth sharing and waiting for more uploads here .

[@TRexx47]

Good video I gotta fix a vacuum leak causing a misfire on the glk 350 same engine I suspect the crank case breather hose is cracked . Aside from that car has ran flawlessly.

[@r.weaver3769]

I am going to try tackling the tensioners and separator and drip pan (I don't think you changed that here)soon. I also need to tackle the spark plugs, as well. I would like to have seen the intake valves and the effects the extra oil had there since this is direct injected.

[@worldpeace5853]

I have the check engine light on my 2012 ml350 and the code now says p2279. The whistling noise was always there during the cold season but never bothered me since it went away after 5 minutes of starting the engine. I changed the serpentine belt in the front of the engine thinking this was the reason but it was of no use. I have now ordered the PCV part from Amazon/Uroparts as it was the cheapest. I hope this would set it right. German cars are comfortable but as much a pain in the butt!

[@stevem6711]

Pro tip - cover those open manifolds with rags. I cringed when you pulled out that lose bolt with the magnet. I just knew it was going down an intake hole. Thanks for the video on this.

[@leiblingcarms1532]

Showing here daddy got time to roll here reminds me of someone who have a problem with his Mercedes I don’t know exactly what is the problem but perhaps it helps.keep sharing daddy Sir .

[@CrappyCSX]

Thank you. This video was a blessing for this job.

[@ID1886]

You have a suggestion on where to pull vacuum from to put a catch can on? I just picked up a '15 ML350 with this engine and want to keep oil out of the manifold to help avert some of these issues.

[@egillgumundsson2148]

I highly recommend a intake/valve cleaning at the same time as all that oil will gunk up the valves. I just did the same job and it was a lot of work but doable. I’m just glad I caught it early on my ex wife’s car before it became really bad. Time to look at my GLE350 as well.

[@stanparsonstreeinc]

I’m working on the same project, what a joke these engineers design such stuff .

[@hiphopworld5389]

Me too it’s a lot of work and very little space to work with

[@Reshide3]

Can you please tell me how did you get the bolt out of the silver case in the front bottom right to remove? I got the other three out

[@kevinelliott6010]

Can you please tell me if it's necessary to remove the lower intake runners?

[@lifewithcarmel5444]

As always great work

[@Ivan-nd7kh]

Thanks for your video, it helps a lot.

[@flippinghillbillies5856]

Are they anyway I could get the part numbers ? I’ve got to this to mine

[@Reshide3]

How do i get to the fastener bolt at the 7:46 minute mark? The only bolt I can’t get too! 🤦🏾

[@btori88]

I have a ticking noise coming from that top left vaccum looking plastic on the intake manifold. Do you think it is also the pcv or different part?

[@cooky8876]

Hi! Good video I have a 2012 mercedes-benz e350 with the code p0018 an replace the camshaft sensors and crankshaft sensor and the magnet too and still have the same code maybe you can help me thanks

[@bigmotor3845]

Great job Young Fella!!!

[@franramirez617]

Muy buena informacion

[@JoeAlvarez-kx9kx]

Would this cause misfire and gas smell

[@kishafisher6824]

Mine did the same loud squealing noise and it was just the O-Ring.

[@ArmandoPerez-iu2zd]

This helped a million

[@Dnasty1]

Waht would it mean if my engine has high pressure? I take the cap off and oil splatters all over the hood it seems very excessive. Also I have a whistling noise that starts randomly while the car is running and stays on.

[@mr.mr400]

Bad pvc

[@jeffiroth8899]

Lol I had the same problem, except I dropped my 8mm 1/4" socket (and not a bolt) since I didn't have a 1/4" E10 socket, and it landed in about the same spot

[@sean.michael84]

I’m curious what’s the best method to release the fuel line pressure? I’m about to do the job and this video helps tremendously but worried about the fuel lines and the high pressure fuel pump. I’m guessing a ton of rags and crack it open with the battery disconnected or is there a better method?

[@mjmorteo14]

10:36 same question about how to release fuel pressure so that fuel doesn’t go everywhere once the fuel line is disconnected

[@sean.michael84]

@@mjmorteo14 I just ended up unplugging the battery and putting a bunch of rags underneath to catch the gas in the lines and opening one by one. Luckily in my case I haven’t driven the vehicle in a week or two so there wasn’t any pressure built up for me so any fuel in the lines just trickled out instead of spraying out. My guess is after maybe a day or two the fuel will slowly start to lose pressure until gravity takes over and slowly starts to work its way back towards the tank. Hope that helps.

[@clarahowser]

I am in limp mode after replacing the pcv valve. The codes I’m getting are fuel pressure too low and can shaft position over advanced. There was so much vacuum prior to replacing pcv valve that the oil cap had cracked and broken a bit. I’m wondering if maybe a tiny piece of the cap could be blocking fuel in the fuel rail. I’ve also seen in some case studies (after I finished the pcv valve of course) that you have to manually turn the cam shaft which is out of my league… any ideas?

[@partsshooter]

If your timing is off, it'll throw off high pressure fuel pump timing also. If it ran fine before you replace it, check for human error during the repair. Check your oil level. If your car ate too much oil, may throw timing off and generate a code. Add oil if needed, clear codes and recheck

[@feltro19]

Where does this man work at witch state is he in anyone know need a good mechanic

[@IndustMachWerksofTX]

Great video! Took me 5 hrs just for the spark plugs! SMH

[@nursecarter3281]

My husband changed the pcv (oil separator… crank case ventilation system…) and the spark plugs along with swapping injectors (4 with 6) The car starts (runs a little rough) but dies when coming off the gas… throwing a barometric pressure and low fuel pressure code? Could there be air in the system? Or possibly something wasn’t plugged up correctly.. any ideas? Thank you!

[@infantefernando605]

Hi, I'm just in the same situation. How did you guys solve the issue?

[@ilovetech]

@@infantefernando605😂

[@Ivan-nd7kh]

Hi, I am planning to replace the vent valve to my ML350 2014. Is it necessary to remove the hp fuel pump to remove the vent valve?

[@egillgumundsson2148]

Yes

[@nedunonnyp704]

I'm looking at the video and I can't understand the reason why its necessary to remove the High Pressure Fuel Pump.. ? Seems to be high and out of the way enough that you can reach down and remove the Breather/Oil separator w/o removing the pump.. ? Is the High pressure fuel pump blocked in by/directly on the Oil separator that warrants removing it? Or is there a Bolt that The H/Press F-Pump Blocks? 🤔🤔 I would think that After removing the bracket with sort of houses them both, the Oil separator should be able to be removed on its own... ??? 🤔🤔🤔🤔

[@hiphopworld5389]

Did you figure it out ??

[@nedunonnyp704]

@@hiphopworld5389 There's One Bolt On That Breather Housing That is buried in-between there. That's the Only way To Remove it.

[@hiphopworld5389]

@@nedunonnyp704 my shit went on fire after the job , becareful

[@nedunonnyp704]

@@hiphopworld5389 Damn!, How that Happen?

[@nedunonnyp704]

@@hiphopworld5389 Probably didn't Tighten One of Those Fuel Lines Back Up Properly.

[@goran831]

Hi , This is the m276 engine? Can you please give me the parts number?

[@SavageMcBeastdog]

Helpful, thanks

[@gabbygranderson4927]

I'm having this issue now with my 2016 GLE 350. About how much would you say this job would cost. The dealership quoted me $640 US Dollars for the parts only.

[@partsshooter]

Significantly ranges... Easily around 600-1000 labor easy

[@stanparsonstreeinc]

Parts are 60 $

[@catzmitz]

Nice👍😉

[@sagesenteno133]

How and where do you release pressure in lines

[@mjmorteo14]

10:36 yes same question

[@MrLacc2003]

Does the fuel pump have to come out to get the Pcv valve?

[@tiggzzgaming2249]

Yes

[@nedunonnyp704]

Seems like a Tough Job!.... At What Mileage does this need to become a concern/need to be replaced?

[@hiphopworld5389]

It is a tough job

[@georgeanddaddecker7563]

Mileage?

[@COVIDisA_HOAX]

I seen a little oil in my filter housing could it be a bad pcv?

[@CharlieCharlie-m7h]

Where are you located bro ?

[@justsying]

I have the same car. The dipstick pops up every so often

[@mohamedzar3057]

Hello, great job Sir, I need that help, how to contact you?

[@phigo4kins]

02:38 How is the Bad/Leaking PCV/Oil Separator Causing The Vacuum in the Crankcase? How does that happen? If Anything I would think it should cause Increased Pressure... ?? 🤔🤔🤔

[@partsshooter]

Because the pcv uses engine vacuum to ingest crank case fumes. When the diaphragm fail within the pcv,, it fails to regulate vacuum which causes these symptoms. Natural aspirated cars don't create pressure, just vacuum to atmosphere

[@phigo4kins]

@@partsshooter Okay I Get that NA Cars don't create pressure, But the main function of the PCV is to Relieve and Carry the Blowby Gasses, which on its own by design is created through the Pressure of Escaped gases of the combustion process, Aided only by the Engine Vacuum. These Gases (same one heard wooshing when you opened the Engine oil Cap in the Vid) live & circulates inside the engine (Under some kind of Pressure) until relieved by the PCV.. Thus, I'm Confused as to why/how any Part of the Engine that's beyond the Intake Manifold and The Cylinders Can still Be under Vacuum... ?? 🤔🤔🤔 Sorry for the Long one.

[@mdashiqurrahman39]

I thought this v6 and most v6 engine produce vacuum and its normal. Straight 4 engine produce pulses

[@seeingit9337]

Hey Parts shooter did you have to disconnect battery?

[@partsshooter]

I didn't...

[@seeingit9337]

@@partsshooter ok thank you. I will keep the key as far away as possible just in case. You did a great job btw👏👏👏

[@partsshooter]

@@seeingit9337 well youre outside working, nothing active... But as for safety people revive it. Only time I disconnect a battery is when doing engines,starters, air bags and alternators. I'm Just exercising common sense here. If you need to unlock the wheel. Just tap the start button twice, WITHOUT APPLYING BRAKE PEDAL. This will go into an on state and not crank. Goodluck

[@hiphopworld5389]

This bracket is a pain 😊

[@lifewithcarmel5444]

Daddy have a great day always

[@georgeanddaddecker7563]

Hackalicious

[@partsshooter]

Explain

[@Hmmm313]

what a german junk....they cant make a good car anymore phatetic

[@nursecarter3281]

My husband changed the pcv (oil separator… crank case ventilation system…) and the spark plugs along with swapping injectors (4 with 6) The car starts (runs a little rough) but dies when coming off the gas… throwing a barometric pressure and low fuel pressure code? Could there be air in the system? Or possibly something wasn’t plugged up correctly.. any ideas? Thank you!

[@partsshooter]

If the car ran fine before being touched, suspect human error. Assuming this, check over all... Connection and ensure everything's proper. Being those codes are immediate, locate and check connector

[@nursecarter3281]

@@partsshooter Thank You! I must say you’re a pretty smart guy! After finding a sensor unplugged and plugging it up the car ran fine for less than a minute. It then started spitting, sputtering, and blowing smoke. He took it all apart again but this time cleaned the throttle body, MAP sensor, and made sure every connection was secure. Now she’s purring like a kitten! TY for taking the time to answer my question and for providing such useful information. You’ve earned a new subscriber!