E-Class (W212) 2010 - 2016: E 350, E 550
Sponsored by:
Sponsored by: CARiD

Oil in AC Condenser?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jan 10, 2026 | 07:15 PM
  #1  
adam1point0's Avatar
Thread Starter
Newbie
 
Joined: Jan 2026
Posts: 4
Likes: 0
2011 Mercedes Benz E350 4 Matic
Oil in AC Condenser?

Hey everyone,

I’m planning on replacing both my A/C compressor and A/C condenser on my 2011 Mercedes-Benz W212 E350 4 matic, and I want to make sure I handle the A/C oil correctly.



The parts I’m installing are:

• A/C Condenser: Denso 2045000654

• A/C Compressor: Mahle Behr ACP342000S



My main question is about oil quantity and distribution.

How much PAG oil should be added to the new compressor, and does the new condenser require any oil to be added, or should the condenser be installed completely dry?



I want to make sure the oil amount is correct before pulling vacuum and charging the system so I don’t over- or under-oil it.



Any advice or factory-correct guidance would be appreciated. Thanks.
Reply
Old Jan 10, 2026 | 09:03 PM
  #2  
S-Prihadi's Avatar
MBWorld Fanatic!
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
First you must check with MB WIS on how much denso compressor oil is to be added for NEW condenser ( and its new dessicant filter ).
I am not in Jakarta my home base and my PC back home has the EPC/WIS...
Attached what I got from my archive in MB world.


As for NEW compressor, it is easy, oil balance the new compressor.

.


If you want to do the HVAC job well, replace all o-rings at hose ends too. They will be brittle soon.
4 o-rings at the EVAP side : https://mbworld.org/forums/e-class-w...total-4-a.html

I have replaced 3 of my HVAC hoses ( out of total 4 hoses ) as preventive, so now all my hose ends are using new-o-ring



Have fun..... and make sure you own a proper micron gauge and a good vacuum pump.


Attached Files
Reply
Old Jan 10, 2026 | 09:09 PM
  #3  
adam1point0's Avatar
Thread Starter
Newbie
 
Joined: Jan 2026
Posts: 4
Likes: 0
2011 Mercedes Benz E350 4 Matic
Originally Posted by S-Prihadi
First you must check with MB WIS on how much denso compressor oil is to be added for NEW condenser ( and its new dessicant filter ).
I am not in Jakarta my home base and my PC back home has the EPC/WIS...
Attached what I got from my archive in MB world.


As for NEW compressor, it is easy, oil balance the new compressor.
https://youtu.be/eCyDO7uxrOY

.


If you want to do the HVAC job well, replace all o-rings at hose ends too. They will be brittle soon.
4 o-rings at the EVAP side : https://mbworld.org/forums/e-class-w...total-4-a.html

I have replaced 3 of my HVAC hoses ( out of total 4 hoses ) as preventive, so now all my hose ends are using new-o-ring



Have fun..... and make sure you own a proper micron gauge and a good vacuum pump.
thank you
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 06:17 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE