Recharge A/C or just add Freon
06-17-2020, 05:52 PM
#1
Member
Thread Starter
Recharge A/C or just add Freon
My 2011 4matic front only A/C is working good but not as cold as it has been since last year. Don't have any leaks all climate control functions on command and dash work fine. Was thinking of just adding freon to get it back to norm. Just have couple questions want to get opinions on. Any help and thoughts would appreciate.
Should I just recapture, vacuum and recharge the system I have the equipment. It hasn't been done since I've own the car.
If I go this route anyone know the capacity of R134a the car holds. I've found chart stated 1070 grams or 37 ounces.
Should I just recapture, vacuum and recharge the system I have the equipment. It hasn't been done since I've own the car.
If I go this route anyone know the capacity of R134a the car holds. I've found chart stated 1070 grams or 37 ounces.
Last edited by dweb4; 06-17-2020 at 05:55 PM. Reason: typo
06-17-2020, 07:53 PM
#2
Super Member
Join Date: Jun 2003
Location: Aridzona
Posts: 642
Received 83 Likes
on
72 Posts
'15 S550, '10 E350 P1/P2, '02 ML320
Not a bad idea to recover the refrigerant and check to see if it will hold a vacuum before adding any more.
As for the charge amounts, its 1070g without the rear A/C evaporator (1180g with the rear A/C evaporator.)
There is also a list of options for adding oil, but they are all related to r/r of a component or failed hose, so perhaps not applicable in this case.
As for the charge amounts, its 1070g without the rear A/C evaporator (1180g with the rear A/C evaporator.)
There is also a list of options for adding oil, but they are all related to r/r of a component or failed hose, so perhaps not applicable in this case.
06-19-2020, 01:13 AM
#3
Super Member
Join Date: Jun 2013
Location: Staten Island, NY
Posts: 777
Received 65 Likes
on
53 Posts
2011 GL 550, 2010 MB S550, 2004 BMW 645Cic 1988 Corvette
Before you add freon, when was the last time you changed the cabin air filters? If they haven't been changed in a while they will clog and reduce airflow.
