air conditioning failed, no cold air comes out.
Thread Starter
Junior Member
Joined: Aug 2020
Posts: 28
Likes: 3
From: Spain
ml 350 bluetec
air conditioning failed, no cold air comes out.
Good morning to see if any expert can help me, it's been a couple of days since my air conditioning comes out cold, after diagnosing with xentry, there are no recorded failures, and the actuators are ok, I only see something lowers the pressure of the refrigerant gas about 5 bars, it may be due to lack of gas, some other idea, Thank you in advance.
Out Of Control!!
Joined: Apr 2019
Posts: 11,923
Likes: 6,776
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Good morning to see if any expert can help me, it's been a couple of days since my air conditioning comes out cold, after diagnosing with xentry, there are no recorded failures, and the actuators are ok, I only see something lowers the pressure of the refrigerant gas about 5 bars, it may be due to lack of gas, some other idea, Thank you in advance.
Out Of Control!!
Joined: Apr 2019
Posts: 11,923
Likes: 6,776
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
SOLENOID.... NOT PUMPING
With 5Bar (cold engine bay) A/C should cool nearly well.
It does not so :
Read the "compressor solenoid"...
** IF ** solenoid % duty is shown active without high side pressure increase then replace your failed/jammed $50 solenoid or new compressor.
It does not so :
Read the "compressor solenoid"...
** IF ** solenoid % duty is shown active without high side pressure increase then replace your failed/jammed $50 solenoid or new compressor.
Last edited by CaliBenzDriver; Jun 29, 2025 at 09:47 PM.
