AC issue
Thread Starter
Junior Member
Joined: Jul 2021
Posts: 65
Likes: 12
From: NW Florida
2012 E550
AC issue
2012 E550
The driver side blows colder than the passenger side, and I've read how going from full low to full max 6 times should fix the issue, but it doesn't. I wouldn't say the passenger side blows hot either, just not as hot as the driver. Also, the driver side blows cold in the morning and not as cool in the afternoon, even after sitting all day. After about 20 minutes of driving it gets colder, but not like freezing cold, and it's the same for the passenger side. With summer approaching and living in Florida, I would like to get this resolved.
Does this sound like a blend door issue or maybe just a recharge?
Does anyone have a pic of the blend door? I'm usually good at finding what I need on the internet, but falling short on this.
Thanks
The driver side blows colder than the passenger side, and I've read how going from full low to full max 6 times should fix the issue, but it doesn't. I wouldn't say the passenger side blows hot either, just not as hot as the driver. Also, the driver side blows cold in the morning and not as cool in the afternoon, even after sitting all day. After about 20 minutes of driving it gets colder, but not like freezing cold, and it's the same for the passenger side. With summer approaching and living in Florida, I would like to get this resolved.
Does this sound like a blend door issue or maybe just a recharge?
Does anyone have a pic of the blend door? I'm usually good at finding what I need on the internet, but falling short on this.
Thanks
Out Of Control!!
Joined: Apr 2019
Posts: 11,990
Likes: 6,822
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
DIAGNOSE FIRST
2012 E550
The driver side blows colder than the passenger side, and I've read how going from full low to full max 6 times should fix the issue, but it doesn't. I wouldn't say the passenger side blows hot either, just not as hot as the driver. Also, the driver side blows cold in the morning and not as cool in the afternoon, even after sitting all day. After about 20 minutes of driving it gets colder, but not like freezing cold, and it's the same for the passenger side. With summer approaching and living in Florida, I would like to get this resolved.
Does this sound like a blend door issue or maybe just a recharge?
Does anyone have a pic of the blend door? I'm usually good at finding what I need on the internet, but falling short on this.
Thanks
The driver side blows colder than the passenger side, and I've read how going from full low to full max 6 times should fix the issue, but it doesn't. I wouldn't say the passenger side blows hot either, just not as hot as the driver. Also, the driver side blows cold in the morning and not as cool in the afternoon, even after sitting all day. After about 20 minutes of driving it gets colder, but not like freezing cold, and it's the same for the passenger side. With summer approaching and living in Florida, I would like to get this resolved.
Does this sound like a blend door issue or maybe just a recharge?
Does anyone have a pic of the blend door? I'm usually good at finding what I need on the internet, but falling short on this.
Thanks
Its not totally simple. These solderless modules are hard to reach between the floor carpet and airbox under the dashboard.
Best bet is to use a good scanner to read what exactly is happening with your AirCon system. A simple fault reset may restore joy for free if you're dealing with low voltage chaos.
