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

Mr

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 06-14-2021, 08:31 AM
  #1  
Newbie
Thread Starter
 
rasalie's Avatar
 
Join Date: Jun 2021
Posts: 3
Received 0 Likes on 0 Posts
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.
Old 06-14-2021, 01:18 PM
  #2  
MBWorld Fanatic!
 
bmwpowere36m3's Avatar
 
Join Date: Jun 2020
Posts: 1,363
Received 1,008 Likes on 675 Posts
'11 E350, '11 E550, '98 M3, '95 E320
You'l need to scan for codes and look at live data (temp sensor values, among others) with appropriate scanner.
The following users liked this post:
CaliBenzDriver (06-15-2021)
Old 06-14-2021, 08:17 PM
  #3  
MBWorld Fanatic!
 
CaliBenzDriver's Avatar
 
Join Date: Apr 2019
Location: Silicon Valley
Posts: 5,662
Received 3,449 Likes on 2,298 Posts
MY'14 W212 M276 3.5NA @60kMi
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.
Old 06-15-2021, 02:11 AM
  #4  
Newbie
Thread Starter
 
rasalie's Avatar
 
Join Date: Jun 2021
Posts: 3
Received 0 Likes on 0 Posts
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]
Old 06-15-2021, 10:11 AM
  #5  
Out Of Control!!
 
konigstiger's Avatar
 
Join Date: Jul 2003
Location: North Scottsdale, AZ
Posts: 15,903
Received 4,435 Likes on 3,152 Posts
'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.

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


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

Quick Reply: Mr



All times are GMT -4. The time now is 07:58 AM.