Ac climate control
Thread Starter
Newbie
Joined: Apr 2019
Posts: 12
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From: Portugal
320cdi w210
Ac climate control
Hello, I have the following values of climate control.
https://youtu.be/w8B-7fFZnbo
Anyone can help me, especially the 7 that is the pressure, is it ok?
Other issue is the left and right vent has different temperature...left seems that there is no cold air, but right is cold as hell.
https://youtu.be/w8B-7fFZnbo
Anyone can help me, especially the 7 that is the pressure, is it ok?
Other issue is the left and right vent has different temperature...left seems that there is no cold air, but right is cold as hell.
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Joined: Nov 2015
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From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
7 is the pressure in bars. That seems ok.
3 & 4 are your heater core temps - left and right respectively - they should be the same if they are blowing correctly.
Where are your error readings?
3 & 4 are your heater core temps - left and right respectively - they should be the same if they are blowing correctly.
Where are your error readings?
Thread Starter
Newbie
Joined: Apr 2019
Posts: 12
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From: Portugal
320cdi w210
I have filled the AC system last saturday and few hours later I got the error B1241 - Low freon. I reset the error and then seems it´s fine, except the left core temperature it´s warm and right one very cold.
Probably the car workshop didn´t filled with the correct quantity of freon. How can I check it?
Thank you
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Joined: Nov 2015
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From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Thank you khomer,
I have filled the AC system last saturday and few hours later I got the error B1241 - Low freon. I reset the error and then seems it´s fine, except the left core temperature it´s warm and right one very cold.
Probably the car workshop didn´t filled with the correct quantity of freon. How can I check it?
Thank you
I have filled the AC system last saturday and few hours later I got the error B1241 - Low freon. I reset the error and then seems it´s fine, except the left core temperature it´s warm and right one very cold.
Probably the car workshop didn´t filled with the correct quantity of freon. How can I check it?
Thank you
What year is your MB?
Please update your user CP info to include your w210 year.
MBs since 1991 used R134a refrigerant.
Thread Starter
Newbie
Joined: Apr 2019
Posts: 12
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From: Portugal
320cdi w210
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MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,456
Likes: 140
From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Check the sticky's for "Duo valve". This valve controls the coolant going to each side of the heater core. Possibly, one side is stuck and keeping the heater core hot all the time, even when AC is on.
Duovalve Removal and cleaning
Did your car shop check for leaks with UV dye at all when they refilled?
Duovalve Removal and cleaning
Did your car shop check for leaks with UV dye at all when they refilled?
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Thread Starter
Newbie
Joined: Apr 2019
Posts: 12
Likes: 0
From: Portugal
320cdi w210
Check the sticky's for "Duo valve". This valve controls the coolant going to each side of the heater core. Possibly, one side is stuck and keeping the heater core hot all the time, even when AC is on.
Duovalve Removal and cleaning
Did your car shop check for leaks with UV dye at all when they refilled?
Duovalve Removal and cleaning
Did your car shop check for leaks with UV dye at all when they refilled?
For me is that they refilled the R134 with incorrect KG.
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,456
Likes: 140
From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Thank you I will check. They did a pressure test in order to check the leaks and everything was fine. They did a test like 2minutes after the refilling and both heater cores were cold. But after some hours I got that error of low R134 (EC light always red). After reseting the AC it´s only working for the right side...
For me is that they refilled the R134 with incorrect KG.
For me is that they refilled the R134 with incorrect KG.
You can still have a possible (slow) leak somewhere?
But check the link provided first, and do a search and read up on the past threads related to this "no ac on left side". Do the simple checks/tasks first to see if it resolves your issue.
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From: V E G A S
1922 Ford Model T / no OBD
You can spend weeks dropping parts in the system, or you can spend 90 seconds to troubleshoot it.
http://www.mercedesmedic.com/ac-air-...le-codes-list/
Come back with 2 sets of reading per the site and attached notes.
http://www.mercedesmedic.com/ac-air-...le-codes-list/
Come back with 2 sets of reading per the site and attached notes.
