Mercedes Trunk Actuator (Lock) Replacement DIY how to fix car door latch

Mercedes Trunk Actuator (Lock) Replacement DIY how to fix car door latch


the ladies and gentlemen today we’re going
to be looking at the trunk mount latch mount motor for ML 350 these a motorized in nature and this system the locking up
the trunk also in the opening up the trunk on this
particular one the gears have gone bad both in this unit causing the trouble not to
engage on the left Lee itself is covered with plastic shroud that is remove bay popping out some paintings
home once that’s removed then you have access to 3 star not that hold the lock mount assembly at today I’ll be using home some star
wrenches and assess for the star nuts on this particular application is that
T-thirty I’m going to be using that term those
assembly in place Islam Assembly has a motor on it that assists in closing and latching the
trunk inside the motor compartment there some classic gears
kinda way out a break and I believe that’s what is
happening here the more relevant in the span I have disengaged at to save the motor and also not to drain the car battery um want a plastic shroud is removed then there’s some pins that fit into the
holes over the liftgate they also need to be
removed home if any them break their youth the
levy obtained at the dealership where these
parts are sold but I the reason for removing discover is that the the area last month will not come out from this and but it has to be removed up and out from inside I’m 20 min ago gonna go ahead and assume first one and the second one just have it held in place by one in the same place I’m gonna go ahead here on earth file1 it has a lot to me and said that’s not
gonna follow no stay in place like this said earlier
with unit home I’ll by going back up inside up their couple things to look for when removing the assembly this is the
emergency earlier that you can I used to open the trunk from one when you’re in
the inside the car um can continue taking up the damage
this it’s connected by a stainless steel braided cable but the unit itself that unfortunately this the in place but I am my rivard so don’t want them that um that cable needs to be removed that accomplishment just on snapping that from this housing here once that’s done then think that off like that that essentially disconnect fee
emergency then the unit itself months little did ordered this lot replacement for the ML 350 a yesterday and it came in FedEx today and some even though I had
attempted to repair the record with the family you know this is the part that you wanna
have brand new um replacement you don’t want to chance
have in this locker fail especially if it’s gonna fail he
could fail in the locked position then you have difficulty getting the trunk open
difficulty getting the part out so I decided that instead of going with the replaced part that I fixed on the inside of the
older module that failed I would just go ahead
and purchased this brand new one from Mercedes so I’ll be installing them and I’ll be
showing you how to install that momentarily gonna go ahead and replace the lock in
module on the ML 350 have the new I unit can my hand brand new from from Mercedes and a part number on various alpha 15 are actually 164 740 0735 from want to give them your correct VIN
number they can give you the corresponding Park I’m on the reasons why the sometimes
fail is that day the grease thats placed on the um the lock itself gives out ho wears out it should be lubricated
regularly you so we’re gonna go ahead and install
this be from our earlier in this video I said that the
locking module has to come off from the inside is so the reverse is true when you gonna be um installing new one it has to go in from the hand this little module this little
plastic brace here but this lever tends to get away pretty
flexible you can bend it over the way just let this led by cannot be reviewed removed without a detaching these rivets I wanted to
catch both rivets then you have to reinstall on your own
its if you have a rivet machine or um you can install not in bold I don’t recommend going that route it sees lisas I’ll pushed aside and I’m the locking module can be installed alright com hopefully we have enough light hopefully I’ll you
guys can see clearly in the video what I will you
doing here’s the unit it needs to be inserted I like this I know right this that doesn’t say much but I am gonna reinstall it the same way
to get out and that’s the silver front facing the trunk for the you know them the lift
gate I am up basically slide in place go inside I want it inside arm before actually bolted in place what I like to do I like to hook up the
power um last so that there’s no chance to shorten anything out alright to let’s let’s mister gonna set up my Lake currently am trying
to hold the late and a of the whole the camera the cameras and
camera on a tripod right now let me drink at this late situated alright so like I said earlier this
little plastic brace at the bottom is in the way so you basically just
gotta arm Prado the way and the compressor the way just Graham just by holding up postino yet this inside thing then stop the wanted since I’m then we can worry about placement um placement being that this is the
locking mechanism here and course the trunk is not gonna close and
a lot until that someplace um then the emergency release cable that you see
in front of you needs to be connected onto this lever
here so that if someone inside the trunk emergency situation you can open it up
from the inside will do that last right now I’m just
putting of cable in and other the way religious that once well it’s just that once everything’s in
place them them alright from so now that that sell physically where it needs to be the next thing to worry about is the emergency police um then will have the power you can see over and in the corner there how the power cable goes in I almost
wanna connect the power and now but I a preferred to be safe and not damage anything or lock myself
in the trunk in the process so what i’ll do is I will a in can have a good idea to plug it in before we thing as both a dog
too tightly just because it’s a hard reach on the inside but the let’s go ahead and
do the emergency release next the emergency here are released cable needs to come back this way and stay inside this body right
here tell cavity and the sponges to see on is to prevent it from getting squashed or squeeze as its intense Kevin for whatever reason get into an accident
chances are it’s good but the let’s take a closer look up to reconnect that I don’t wanna make
any assumptions it’s easy to have video show you exactly
what to do rather than have to try to answer
questions after the fact I said there’s a little the liberal here
that you gonna push this groove into and then this piece will go into the leave itself so
starting with the lever itself connect that into the legal itself just
like that push in and around want it fitted around then he pushed at a new place and that’s it for that the youth secondly gotta remember that we need our support power
and then the after that we have the balls star three-star bolts that we will need to secure the law in place if you need bolts lemme when ordering the new piece need to
specify that because it will not come with the new unit they’re expecting
that you only use the old ones but if you do need one them please be
advised that they will not to appeared in your lock I think I’m gonna go ahead and before both anything down just because
it’s a tight fit my fingers are kind of fat that it’s not a bad idea to from plugged in the power if you gonna do
that just disconnect the battery arm your main battery lead okay have gone ahead and a bought the lot backup just so that I can
plug the fire n I kept going back and forth
on it I’m going to just go ahead and plug it
in um because once it’s onto loughlin in place it’s really difficult to try and dumb unplugged to her cause a up them the book with already started um couldn’t the screws back in place and
with his finger taking those for a while here from up is one that I did offer put in there the minute once they’re once a Titan by hand then I’ll just use
the year the ranch on ’em up a at bay in testing it schindler am trunk that’s a nice sound from works the

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