Amazing hvac dessicant bag engineering ...duggh
Thread Starter
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
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From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Amazing hvac dessicant bag engineering ...duggh
Sharing.......
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Now the best part.
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How could a circlip be removed, when the method is to squeeze it and make it smaller, when there is that plastic ring in red dots being there to prevent circlip from "shrinking"
Please humor me ......
I don't want brute force way, I want proper way.
This is the most powerful circlip ever removed from my car, at the rear DIFF.
At least it is free to shrink....
. nothing blocking it.
.
.
.
.
Now the best part.
.
How could a circlip be removed, when the method is to squeeze it and make it smaller, when there is that plastic ring in red dots being there to prevent circlip from "shrinking"
Please humor me ......
I don't want brute force way, I want proper way.
This is the most powerful circlip ever removed from my car, at the rear DIFF.
At least it is free to shrink....
. nothing blocking it.
.
Thread Starter
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
The special tool included has nothing to do with circlip, it is only for pulling out the plastic body/pipe of dessicant bag holder.
example is below :
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example is below :
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Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
CIRCLIP VS. PLASTIC
answer...no brute force today
it looks the inner plastic insert is used as a clip security, right?
safety plastic insert
Is there a way you can you press down on the plastic-insert to help with your circlip removal ?
> PLAN B's....
either cut relief in the plastic insert
or cut the pins off the circlip.
it looks the inner plastic insert is used as a clip security, right?
safety plastic insert
Is there a way you can you press down on the plastic-insert to help with your circlip removal ?
> PLAN B's....
either cut relief in the plastic insert
or cut the pins off the circlip.
Last edited by CaliBenzDriver; Aug 26, 2025 at 05:56 AM.
Thread Starter
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
I tried pushing down the off-yellow plastic, but it wont budge at 10lbs force.
That dessicant tube zone can be up to 300 psi pressure, maybe the o-ring grips too tight.
Most uses thread on the cap, so no need circlip. easy.
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I think I must hammer the off-white cap like below video
That dessicant tube zone can be up to 300 psi pressure, maybe the o-ring grips too tight.
Most uses thread on the cap, so no need circlip. easy.
.
I think I must hammer the off-white cap like below video
Out Of Control!!
Joined: Sep 2018
Posts: 14,666
Likes: 4,568
From: unbegrenzt
2017 GLE350 4MATIC
Circlip in this case should be single use.
Yellow plastic disc in the 10-year refresh should be replaced.
Use a small flat tool to pry up the inner three teeth of the circlip. When squeezing the circlip ears, the first ear needs to be lifted while squeezing to lift over the plastic disc.
Each ear can be lifted with a small flat tool while the circlip pliers are squeezing. The clip should come out in a spiral fashion. Not all at once like a common circlip.
Throw the circlip and plastic disc in the rubbish.
Install new circlip and new disc.
Yellow plastic disc in the 10-year refresh should be replaced.
Use a small flat tool to pry up the inner three teeth of the circlip. When squeezing the circlip ears, the first ear needs to be lifted while squeezing to lift over the plastic disc.
Each ear can be lifted with a small flat tool while the circlip pliers are squeezing. The clip should come out in a spiral fashion. Not all at once like a common circlip.
Throw the circlip and plastic disc in the rubbish.
Install new circlip and new disc.
Last edited by chassis; Aug 26, 2025 at 07:20 AM.
Thread Starter
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
So, MB on purpose made 3mm gap for off-white plastic cap to be able to shoot up and hit the circlip , when and if the r134a pressure rise up.
I hammer it down about 3mm, just like the video, but I use soft blow hammer.
Dang so crude, as to use a hammer
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======
Very nice, no sign of blackened oil trace (black death ).
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The only hose set which I will not renew is the one with IHX internal heat exchanger, because its rubber hose portion is NOT at hottest zone ( engine bay) like the other 3 hoses.
The other 3 will be renewed.
Dessicant bag shall only be opened -10 to 20 minutes to complete sealing of hvac system.
This time I can vacuum down to 100 micron I hope.
============
Out of the 120cc of ND-8 compressor oil, i have the opportunity to at least replace 40cc or up to 60cc....so awesome this opportunity.
I hammer it down about 3mm, just like the video, but I use soft blow hammer.
Dang so crude, as to use a hammer
.
======
Very nice, no sign of blackened oil trace (black death ).
.
.
.
.
.
The only hose set which I will not renew is the one with IHX internal heat exchanger, because its rubber hose portion is NOT at hottest zone ( engine bay) like the other 3 hoses.
The other 3 will be renewed.
Dessicant bag shall only be opened -10 to 20 minutes to complete sealing of hvac system.
This time I can vacuum down to 100 micron I hope.
============
Out of the 120cc of ND-8 compressor oil, i have the opportunity to at least replace 40cc or up to 60cc....so awesome this opportunity.
Last edited by S-Prihadi; Aug 26, 2025 at 07:53 AM. Reason: add info
Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Why do they use the pink o-ring instead of green silicone ??
flattened O-Ring
I hate how the undersized O-rings are "one time use" only for garanteed to leak.
flattened O-Ring
I hate how the undersized O-rings are "one time use" only for garanteed to leak.
Last edited by CaliBenzDriver; Aug 26, 2025 at 04:24 PM.
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Thread Starter
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Thread Starter
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
