AC cold on right, hot on left. (Newbie)
Thread Starter
Newbie
Joined: Nov 2024
Posts: 1
Likes: 0
From: Mckinney, TX
2002 S55 AMG
AC cold on right, hot on left. (Newbie)
Hello. This is my first post, but i just bought a 2002 S55 AMG. Fixing up all the small cosmetic things. Putting on new tires and brakes. Working through error codes and trying to solve the A/C issues. I have read all I can find for the A/C issue with cold on the passenger side and hot on the driver side. I have looked at the W220 encyclopedia. Went through error code in AC system and just did the ACC parameter values menu and ACC flap test menu.
Just to clarify what is going on:
- A/C set at 70 or so and it sends cool air to passenger side.
- A/C set at 70 and it is warm air blowing on driver from center vent and really hot air from vent by door. If I set it to about 58 degrees or so, the air from center will get cool, but vent by door still hot. I just close vent by door for now, but hot air still coming out that side as it can be felt when you open the door.
- Not sure if it's related, but side mirror on driver side is streaked like the mirror heating is burned out or has burned out the mirror.
I have attached the readings I got from the ACC Parameters Value test and some numbers were really high. (Outside temp was about 18 or 19 Celsius) When I scanned the car earlier today, there were only two codes related to AC stuff:
B1887 - Motor N70m1 does not run
B1000 - Control unit N22 is defective
FYI, everything seems to work fine on the control unit, but maybe something internally is defective? Could the temp sensor fan in the overhead unit be the cause of all this? (Doesn't seem likely)
From all the reading, seems like the Duovalve is the problem, but maybe there is more to it?
Thanks for the help.
Just to clarify what is going on:
- A/C set at 70 or so and it sends cool air to passenger side.
- A/C set at 70 and it is warm air blowing on driver from center vent and really hot air from vent by door. If I set it to about 58 degrees or so, the air from center will get cool, but vent by door still hot. I just close vent by door for now, but hot air still coming out that side as it can be felt when you open the door.
- Not sure if it's related, but side mirror on driver side is streaked like the mirror heating is burned out or has burned out the mirror.
I have attached the readings I got from the ACC Parameters Value test and some numbers were really high. (Outside temp was about 18 or 19 Celsius) When I scanned the car earlier today, there were only two codes related to AC stuff:
B1887 - Motor N70m1 does not run
B1000 - Control unit N22 is defective
FYI, everything seems to work fine on the control unit, but maybe something internally is defective? Could the temp sensor fan in the overhead unit be the cause of all this? (Doesn't seem likely)
From all the reading, seems like the Duovalve is the problem, but maybe there is more to it?
Thanks for the help.
