Oil in AC Condenser? - MBWorld.org Forums

Jan 10, 2026 | 07:15 PM

adam1point0

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Joined: Jan 2026

Posts: 4

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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.

Jan 10, 2026 | 09:03 PM

S-Prihadi

MBWorld Fanatic!

Joined: May 2018

Posts: 6,651

Likes: 6,598

From: Jakarta-Indonesia

2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid

.

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

W166 M276 drain evacuate and recharge ac.pdf (484.7 KB, 36 views)

Jan 10, 2026 | 09:09 PM

adam1point0

Thread Starter

Newbie

Joined: Jan 2026

Posts: 4

Likes: 0

2011 Mercedes Benz E350 4 Matic

Quote:

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

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