Pratique du Shadowing: So much is wrong with this Mercedes, can we fix it ? - Apprendre l'anglais à l'oral avec la vidéo

Hey, it's Perak and this is a 2015 Mercedes ML350 which has been sitting for quite some time.

And I mean literally sitting, there is no gap here at all.

Since this car is so low to the ground, the poor thing has just been sitting outside collecting dust because it is not drivable.

And the reason it is so low is

because the airmatic on it has failed this car instead of using springs uses balloons filled with air

and the owner told me that this wheel had taken an impact

so i suspect that the balloon behind this wheel is blown

but that is not the only problem this car has let's dig a little further

so under the hood the first thing

that has gone bad are these struts these barely holds the hood open and this can fall on me anytime.

So, let me fix that.

Wait a minute.

Now, ideally, we should remove these struts but they are gone anywhere.

Well, now that's not going anywhere.

Let's move on to the engine.

Well, to begin with, the engine bay is filthy and that is because of the amount of seepage that has covered everything.

So, let's trace the seepage down quickly.

Now, I'll be honest with you.

I've been inside this engine bay before and after some peculiar discoveries, I decided that I should make a video on it.

First of all, this intake duct that goes to the turbo, it was filled with seepage.

So, I suspected that it is cracked but it did not stop there.

Next up, we had a lot of seepage around the vacuum pump.

Now, it is pretty common for this seal to fail but it wasn't that.

When I dug around, I found someone's carelessness which has led to all of the seepage.

Let me show

you now there were two surprises with this there was a lot of seepage around this joint

which led me to believe it is cracked and lo

and behold it was and it was poorly repaired but

that isn't the only problem with this intake pipe the seal for it is stone as well

and they just used it whoever worked on this car previously just used it

and they tightened this clamp so much that this poor thing just broke

and now about the vacuum pump seepage let me show you what's wrong there

now this is a chamber that sits right above the anti -shutter valve

which heads straight to the intake plenum i think this is sort of an air to oil separator

but the missing component is an o -ring which is

which is very crucial all of the air components on this car are leaking

and that too right after the filters now the question is why is there

so much oil in the intake ducts

and the answer is this careless repair they think

that they sealed it properly and no air would pass through it

but obviously this is leaking and this is right after the air filter

so nothing is going to get filtered from this point till the turbo

and obviously dirt dust whatever found its way into the turbo

and prematurely wore it down

and it just started spooing oil everywhere now the turbo is

not too far gone sure it is leaking oil it is

throwing a little oil it's not too much what i'll do

is find out how much turbos cost for this car

and see if the owner wants to replace it

if they do it's good for a long time to come

if they don't it's not the end of its life anyway

but since it is throwing oil we need to open all of the intake lines

and clean them properly but that is for later let's get this car back in the air

my first concern is that the car was on the ground from all four corners

that only happens with a failing valve body

and not a strut a single strut failing would just sag the car from

that corner but this car was grounded on all four corners

so the valve body for this car is right behind here let's remove this wheel open the fender liner

and inspect further

now the valve body is behind this fender liner

and it has no bolts on it nothing is holding it on unfortunately

so let's just remove it slightly there are no bolts

and there is our valve body now to check exactly what

is leaking in the valve body is it the valve body or the compressor, I need to turn the engine on

and raise the car up from the inside for

that i just put the engine back together on the older

seals for the timing this right here is the compressor

which feeds the valve log and after a bit of testing i've concluded

that the valve log on this has failed the first step to check

if your compressor is working fine is to open its line

and then hold your thumb on the compressor line and if it is building pressure

most probably your compressor is fine and this has been replaced in 2020

so i'm not doubting this as much and

because all four corners of the car are on the ground it is most probably the valve lock

because this poor compressor is doing its job valve lock is not sending anything anywhere

so let's quickly replace that and see if that fixes our problem

so this right here is the new valve lock

and this is a very common failure point on these airmatic cars it comes with all new metal fittings

and even the inserts should be metal yeah they are metal as opposed to plastic

which is on the stock one so let's quickly open it all up

and replace it now to remove this we can

check

that the bolt holes are at the back these two on

two corners it's a really easy thing to do just look at your new part

and you can see how it's held together so let's quickly remove it

now it is free from its bracket

and these are all of its lines this is the compressor line

which feeds the entire valve block this goes to the reservoir

and these rest four go to all four corners in the

valve block you can see there are colors each line goes to a different color

and on the stock valve block the lines have those colors as well

so we just need to make sure that we put those colors properly.

Now, on the stock valve lock, two of the lines are entirely faded.

So, we just need to make sure that we know where we are putting them.

Let's open all of these up.

you can see this has metal inserts while this has plastic

so this has less chance of cross threading or leaking

while once we are replacing this there are higher chances of cross threading it

and leaking so this is slightly better in

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that case now i'm just going to replace all of these

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fittings with these new ones these fittings don't actually wear out it's the seal on them

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that does i can just replace the seal and be good with it

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but since this came new with the

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valve lock i'm gonna

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replace it all

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right now

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with the lines looking brand new let's fit them properly

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all right with the valve lock properly done let's put the wheel back on get the car on the ground

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and see if that fixed it fingers crossed that it did so Now,

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let's turn the car on and see if that did anything.

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Now that the valve block is replaced, the car is still not taking air now it says

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that the sensor on the compressor is bad that leaky fault is gone

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but the fault for this sensor is on now

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so i started to suspect the compressor

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and i got a used one out of a mercedes s -class this is out of a s 350

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and when i removed this i saw the number of the car

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which means this has been repaired before not only was it installed in 2020

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but then repaired

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and i know why there is no filter in front of it a filter goes right in the bumper

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and it allows the air to be filtered before it goes into this compressor but

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because it just it just isn't there after this kit they

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just forgot to install it the compressor went bad again for the third time now so let's install the compressor first, see if the car takes air.

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If it does, we'll put the new filter as well.

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Let's go.

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all right with that let's put the wheel back on put the car back on the ground

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and click the raise button from the inside and hope that it worked this time

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all right then as you just saw the car rises properly and it even lowers

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so all that works perfectly i'm just going to leave this car overnight

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and check if any corner drops so we'll know

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if there are more leaks but let's move on to more issues with this car.

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So, two days later and the Airmatic holds pressure as it should, the car is sitting level properly.

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So, we have no further leaks.

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We've received some seals of the engine.

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Let's get started with that.

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First off, we've received the main turbo seal which was entirely torn on this car.

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So, we got this in L -ring which is the brand Mercedes, Audi, all of these cars use and the smaller seal as well.

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This, we could not get in L -ring but it's fine.

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It's not torn in this anyway.

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We got the oil filter in Maan and we got brand new bonnet struts because this can fall anytime.

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Let's begin with the main turbo seal. so

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if you remember this is the seal entirely torn it's just

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it has seen better days i think this has never been replaced in this car is 14 15

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so in like 12 13 years it has never been replaced

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this is the new one before we install it let's thoroughly clean this

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with this relatively clean now let's install the new seal

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It's a good thing that we are replacing this because even this is lit.

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I was thinking that this is fine but even this is not.

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Alright then, with new seals installed in both of those, let's check the health of air filters and move forward.

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They say this car was serviced recently

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but still we are going to service it again so that we have peace of mind

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okay these have not been replaced i wonder when was this service these are pretty old for sure

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I also found the broken part of the dipstick right here and one of the bolts for this is not fully seated.

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I'm not sure if this is how it's supposed to be but it is really high up.

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It should not be like that I think.

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Let's remove this intake as well and clean it from the inside.

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This has never been cleaned.

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Never.

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Which is bad.

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oh this is glued together that's why it was not coming out I wonder why they glued it.

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Look at this.

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Recently serviced.

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Recently serviced.

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Now, I've cleaned them as best as possible.

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I can touch them with bare hands and my hands don't get dirty.

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But all the loose dirt has gone.

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But there is a lot of glue on the inside.

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I don't know why they decided to glue it.

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All that glue has gone in.

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And it's just entirely sticky on the inside.

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Now, I don't wish to put these back in.

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But it's not going to matter.

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It's just glue, basically.

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It's just glue residue.

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All the loose dirt has gone.

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In an ideal situation, I would get new ones and install them, but right now they're not available anywhere.

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So, we're just gonna put these back on.

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While we wait for the new filters to arrive, I thought I'd just quickly remove the bumper and clean the intercooler.

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As I mentioned earlier on in the video, there is a lot of oil in the entire intake system

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and that intercooler is going to be filled with oil, I'm sure.

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So, I just wanted to remove it, check it, clean it properly, get it free of oil so that the car can breathe properly again.

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Let's figure out how to remove this.

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Now there is a lot of oil in there, which I can feel on my finger,

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yup, there is oil, but not pools of it.

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This seal on this side has failed as well so we'll see what we can do about that.

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There is a lot of seepage here but yeah in general let's just clean this properly.

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So this is one of the charge pipes absolutely filled with gunk let's clean this properly

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look at the amount of oil in here this is the

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reason we are cleaning it properly this has been quite a

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cleaning spree i went slightly overboard than i should have these

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don't need to look as clean as they do anyway we

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got new filters let me compare them with old ones stay right here would you look at

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that the difference these haven't been replaced for years i think

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yeah so we got new filters everything is clean we're ready to assemble the car now

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the owner was complaining that ac does not work

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while ac was turning on fine the compressor turns on fine the condenser was entirely choked with dirt

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so we've cleaned

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that we have everything brand new everything is clean let's just assemble the car back now

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and then we'll change the oil Thank you.

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So today we are going to change the cabin air filters

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on this car there are three in total this is the outside one

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and these two are the interior one now these were never

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replaced the AC was never serviced I got the AC gas

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filled properly today we got rid of the old gas entirely

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and then got the new one filled now the AC finally cools

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but the cabin stinks because these were never replaced so let's quickly do that

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now i've dusted this earlier when we were getting the ac gas filled

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so not much is going to come out

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but i'll show you a video of what it was earlier

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but let's quickly compare it with a new one these are the older interior ones

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and i'll just show you the new one Look at the difference.

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Now if you remember, this was leaking this was a poor fix done previously

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and it was just sucking in dirt all over the place

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so now i purchased the other one i have already replaced it it is installed

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and this one is out and when i removed it i realized

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that it had a lot more leaks than just the one right here

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but now it's all good so this is the filter

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that goes right in front of the airmatic pump this filters out all the air

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that the pump is sucking so that it doesn't get clogged with dirt

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and dust which this part of the car attracts a lot of look at this

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it attracts a lot of dirt and dust

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so this filter is really necessary otherwise the compressor will just

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keep blowing up this is the reason this is the third compressor in this car

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so let's install it then now that we finally have it

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so this is the pickup for the compressor and this is where

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that filter resides and now there will be another pipe

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which goes from here to the top of the fender so

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that this does not accidentally pick up water because

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that would entirely ruin this compressor so this was missing

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that is the reason we're replacing this on this car

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so it is finally back on

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but before I put this I wish to clean this compressor properly once

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so let's either open it or spray some silicone grease in there

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so that it is slightly clean

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because this has been running for a week without this because it took forever to find this so let's clean this

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so i have this random pipe laying around from the a6 this fits over this pretty well

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and this is long enough that it can get tucked halfway above the fender

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so this works now let's mount this with the filter i will initially run it without the output connected

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so that if it has any dirt, dust, whatever, it just throws it out.

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Now I'm just going to zip tie the inlet of this pipe somewhere around in this region behind the bumper

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so that it doesn't ingest any water.

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Now it is finally time to put the fender liner back on.

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It is missing this piece

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so I'll see what i can do for this i mean

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i should cover up cover this up in some way so

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that it doesn't damage anything else back there now

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because you opened the compressor all the air has escaped it

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is spilling back up now the filter is in the compressor

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is a lot smoother it's not making as much noise as it used to

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and this will ensure that it runs forever now so let's see

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if the car rises up properly it is already rising it is pretty slow

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but yeah it's already rising now one of the last things

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that i wish to fix on this car is this door hinge i think you can listen to that

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it is very noisy so let's see what's in there

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if it just needs grease let's grease it up

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but let's get rid of this noise this door has become really heavy because of it

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so unfortunately i cannot do anything about the hinge

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because it is a sealed unit we even remove the door to have like inspected properly

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but it's entirely sealed we'll just need a new hinge

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and this clicking sound will go away someone had greased it previously

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which only makes things worse because it just attracted a lot of dirt

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and it's all in the hinge now

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so greasing it on the outside is not the solution unfortunately

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so we'll need an entirely new hinge but with that everything

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that i wanted to do on this car has now either been done

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or saved for later because we'll need a new hinge

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that will come later also the locks for the fuel filter never arrived i've ordered them like a week ago

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and i'm waiting for them every day

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but they are just not arriving there are particular locks

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that go on this on this fuel filter for the fuel lines

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and i just don't want to use ring clamps

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because then the fuel lines can get damaged i want to use the

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locks that mercedes uses so we've been waiting on

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that once we get it maybe we'll make a part 2 on both of these things we'll see

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but regardless the car is in a lot better of a condition than what it was

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when it rolled in it was on the ground now it

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finally rises nothing was serviced inside everything is serviced now we did not change the oil

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because apparently the oil was changed and that was the only thing

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that they did during the service so we didn't touch

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that the oil change for this is in December now

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so maybe that is when we'll make a part 2 on this

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but till then thank you so much for watching

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and i will see you in the next one with a very special car

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that is hiding in that corner which we won't show you

✨ Vidéo recommandée

302 phrases

Vocabulaire et conseils d’expression pour cette leçon

Cette leçon d’expression orale de niveau B2 s’appuie sur la vidéo « So much is wrong with this Mercedes, can we fix it ? ». Les mots qui reviennent le plus souvent : compressor, valve, filter, oil, properly. Cette vidéo contient 283 phrases et 3358 mots à répéter en shadowing. La partie parlée dure 26:09. Le locuteur parle à un rythme régulier d’environ 128 mots par minute, confortable pour le shadowing. 85 % des mots font partie des 3 000 mots les plus courants en anglais ; le reste mérite d’être vu avant de commencer.

Vocabulaire clé de cette vidéo

Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :

Mot	Prononciation	Sens
compressor nom	/kəmˈpɹɛ.sə(ɹ)/	compresseur
valve nom	/ˈvælv/	clapet, soupape
leak nom	/liːk/	fuite, voie d'eau
glue nom	/ɡlu/	colle
hinge nom	/ˈhɪnd͡ʒ/	gond, charnière
install verbe	/ɪnˈstɔl/	installer
fender nom	/ˈfɛnd.ə(ɹ)/	aile, garde-boue
strut verbe	/stɹʌt/	parader, se pavaner
grease nom	/ɡɹis/	graisse
bolt nom	/boʊlt/	boulon, vis
fitting nom	/ˈfɪtɪŋ/	essayage
clamp nom	/ˈklæmp/	serre-joint
duct nom	/dʌkt/	tuyau, conduit
assemble verbe	/əˈsɛm.bəl/	assembler, rassembler
balloon nom	/bəˈlun/	ballon

Les verbes à particule que vous entendrez

Mot	Prononciation	Sens
come out verbe	/ˌkʌm ˈaʊt/	sortir
back up verbe		reculer
blow up verbe		faire sauter
cover up verbe		cacher, dissimuler
figure out verbe		cerner
find out verbe		découvrir, savoir
go away verbe		partir, s'en aller
pass through verbe		traverser

Des phrases à répéter

Des phrases courtes et complètes de la vidéo, à réutiliser dans la conversation de tous les jours :

Let's move on to the engine.
Let's open all of these up.
We've received some seals of the engine.
Let's get started with that.
Let's begin with the main turbo seal.

La grammaire de cette vidéo

Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :

Structure	Dans la vidéo
Present perfect continu have/has been + -ing — une action commencée avant et toujours en cours	has been sitting · has just been sitting · has been running
Phrases conditionnelles if + proposition, will/would + verbe — une condition et son résultat	If it does, we'll put · if any corner drops so we'll know
Present perfect have/has + participe passé — une action passée qui compte encore maintenant	has failed · has let · has gone
Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le fait	is blown · was filled · is cracked

Prononciation à surveiller

Le locuteur utilise 55 contractions et formes réduites, comme we'll, I'm, don't. Prononcez-les sous leur forme courte, telles que vous les entendez.

Les sons « th »: filthy /ˈfɪlθi/, thumb /ˈθʌm/, thoroughly /ˈθʌɹ.ə.li/
Mots longs — placez bien l’accent: prematurely /ˌpɹiːməˈtjʊə(ɹ)li/, separator /ˈsɛpəˌɹeɪtəɹ/, ideally /aɪˈdi.ə.li/

Les sons difficiles pour les francophones :

/h/ — il se souffle, il n’est pas muet: hinge /ˈhɪnd͡ʒ/, behold /bɪˈhəʊld/, halfway /ˌhæfˈweɪ/
/tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: hinge /ˈhɪnd͡ʒ/, ingest /ɪnˈd͡ʒɛst/, choke /t͡ʃoʊk/
/r/ anglais — langue recourbée, sans frotter la gorge: compressor /kəmˈpɹɛ.sə(ɹ)/, fender /ˈfɛnd.ə(ɹ)/, strut /stɹʌt/, grease /ɡɹis/, bumper /ˈbʌmpəɹ/

Comment s’entraîner avec cette vidéo

Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
Répétez phrase par phrase à vitesse normale, en reprenant chacune jusqu’à ce que votre rythme corresponde à celui du locuteur.
Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme compressor, valve, leak.

Qu'est-ce que la technique du Shadowing ?

Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.

Technique du shadowing : lire le guide complet étape par étape →

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