Mr
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E class 2012 September W212
Mr
Hello, I have 2012 E class saloon E220 diesel W212, when I switched on AC, passenger side blowing a bit warm air but the driver-side blowing cool air, but when it is a really hot day AC not very effective. What are the reasons for these issues? Thank you.
Out Of Control!!
Joined: Apr 2019
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
maintenance....
When is the last time the cabin filter was replaced? You know the one for the air you're breathing... when it's plugged up there's hardly any air that can circulate 
When the air temperature is unbalanced from side to side, suspect the set of air actuators need service: either replace 'em -or simply clean and lube internals.
When the AC compressor short-cycles like every 5Secs... then it's another can of worms.
When the air temperature is unbalanced from side to side, suspect the set of air actuators need service: either replace 'em -or simply clean and lube internals.
When the AC compressor short-cycles like every 5Secs... then it's another can of worms.
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E class 2012 September W212
[cabin finger changed with the last service
QUOTE=CaliBenzDriver;8357000]When is the last time the cabin filter was replaced? You know the one for the air you're breathing... when it's plugged up there's hardly any air that can circulate
When the air temperature is unbalanced from side to side, suspect the set of air actuators need service: either replace 'em -or simply clean and lube internals.
When the AC compressor short-cycles like every 5Secs... then it's another can of worms.[/QUOTE]
QUOTE=CaliBenzDriver;8357000]When is the last time the cabin filter was replaced? You know the one for the air you're breathing... when it's plugged up there's hardly any air that can circulate
When the air temperature is unbalanced from side to side, suspect the set of air actuators need service: either replace 'em -or simply clean and lube internals.
When the AC compressor short-cycles like every 5Secs... then it's another can of worms.[/QUOTE]
Out Of Control!!
Joined: Jul 2003
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From: North Scottsdale, AZ
'71 Pinto
Best to have someone pull codes preferably using MB diagnostics. As suggested could be faulty sensor, actuator however, may simply need refrigerant recharge inclusive of checking for leaks.
