What Fan Speed Do you Usually Use
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Joined: Jan 2017
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W205 C63 S
What Fan Speed Do you Usually Use
In Texas heat normally 80 to 95 F, what ac fan speed do y'all usually use? I find that speeds 1 to 3 are pretty weak and at 4 is when you actually start feeling some decent air flow. Also is your ac ice cold to the touch during the summer or just decently cool due to high outside temps?
Out Of Control!!
Joined: Nov 2018
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From: San Francisco Bay Area
2019 C63CS
I don't live in Texas, but temperatures here are anywhere from low 60s to low 100s in the summer depending on coast or inland. I just leave everything in Auto and temp usually set to 70 in the summer. I turn it down a bit if I have a lot of heat stored in my body or just came from a workout. On a chillier day I up it to 72. If I get a little warm from the seats, I turn on the ventilation, but otherwise the system does its job w/o me having to mess with it. I even have 3 out of the 5 vents closed most of the time. Both on the passenger side are closed, because my wife doesn't like being blown at by air, and I have the center one closest to me closed, cause I don't really like it either and the one by the window I direct up and towards the window, so it creates kind of an air curtain w/o directly blowing at me. The one in the very center points straight back blowing the air between passenger and driver w/o blowing at either one. I find this car has the best vent setup of any car I've ever owned and the AC doesn't get noisy or starts whistling if you close one or more vents. BTW, my car is black on black and it never fails to quickly cool the interior on a hot and sunny day just left on the Auto setting. Don't try to outsmart it I guess.
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Joined: Mar 2019
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From: NYC area
2019 C63S Coupe
In Texas heat normally 80 to 95 F, what ac fan speed do y'all usually use? I find that speeds 1 to 3 are pretty weak and at 4 is when you actually start feeling some decent air flow. Also is your ac ice cold to the touch during the summer or just decently cool due to high outside temps?
Otherwise it's super cold in my coupe. .
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Joined: Jan 2017
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W205 C63 S
The temp. Here in nyc been very hot 90+ and the ac is ice cold. I keep both temp.control units at Low setting and adjust the air flow accordingly. When I play golf I put the reflective Sun Shield on the inside windshield dash board which helps keep the temperature down some somewhat and also protects the dash .
Otherwise it's super cold in my coupe. .
Otherwise it's super cold in my coupe. .
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C63 AMG
I agree that you don't really feel the airflow until speed 4 on hotter days. I usually keep it on auto on 69 and the car gets cool pretty quickly - on hot days the speed is 4+. I recently got ceramic tint all the way around (35% all around and 80% windshield) and the car has become significantly cooler with the heat reflected.
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Joined: Oct 2014
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From: New York
c63s
I set it to 6 to get the car cooled down and maybe 5 mins into drive, I'll lower it to 3 - 4 as it starts getting cold. The ac is almost on par with the civic's ac (gets colder way faster). It's set at recirculating and lowest temp, This is on 90+ for the past few weeks.
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Joined: Jul 2020
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From: Saudi Arabia
c63s 2020
What air flow do you guys use (Diffuse,Focused...)
do you guys feel any different when changing it?
for me Focused is in summer, and diffused in winter.
do you guys feel any different when changing it?
for me Focused is in summer, and diffused in winter.
Last edited by zeexe; Aug 7, 2020 at 09:50 AM.
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Super Member
Joined: Mar 2019
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From: NYC area
2019 C63S Coupe
I use the blower anywhere between 1 to 7. And once the car gets nice and cold I use the blower speed at 1 or 2.
The LOW setting works for me.
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Senior Member
Joined: Jun 2019
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From: DFW, Texas
2017 AMG C63
I tend to keep it on 5 or below fan speed simply because 6 - 8 are too noisy. I generally only use the higher settings when I first get in the car on a hot day, to get the temp down to a reasonable level.
BTWI am also in Texas.
BTWI am also in Texas.
Out Of Control!!
Joined: Nov 2018
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From: San Francisco Bay Area
2019 C63CS
I'm curious. Why do so many of you futz with manually adjusting fan speed? It's an automatic climate control where you set the cabin target temperature and then it blows enough air into the cabin to reach that desired cabin temperature as quickly as possible and then reduce the airflow just enough to maintain the desired temperature and increase it again as necessary. It's like the thermostat in the house. You set your desired temperature and then let the AC/heater do its job. The temperature setting is not the temperature of the air that's blowing out of the vents, unless you set it to LOW and then it blows as cold as it can. Messing with the fan speed just reduces the system's ability to quickly reach the desired temperature and maintain it. Is there a lack of understanding what an automatic climate control system is designed to do? I don't miss the days of having to constantly adjust the warm/cold air mixture along with the fan speed just to be comfortable if the outside temperature changes throughout the day.
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2017 Mercedes-Benz AMG C63 Cabriolet, 2014 Ducati Multistrada 1200 S
I'm curious. Why do so many of you futz with manually adjusting fan speed? It's an automatic climate control where you set the cabin target temperature and then it blows enough air into the cabin to reach that desired cabin temperature as quickly as possible and then reduce the airflow just enough to maintain the desired temperature and increase it again as necessary. It's like the thermostat in the house. You set your desired temperature and then let the AC/heater do its job. The temperature setting is not the temperature of the air that's blowing out of the vents, unless you set it to LOW and then it blows as cold as it can. Messing with the fan speed just reduces the system's ability to quickly reach the desired temperature and maintain it. Is there a lack of understanding what an automatic climate control system is designed to do? I don't miss the days of having to constantly adjust the warm/cold air mixture along with the fan speed just to be comfortable if the outside temperature changes throughout the day.
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Joined: Oct 2016
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2020 AMG C63S Brilliant Blue
Adding a little twist to the thread:
Do you guys use recirculate or straight outside air? I find that this car in recirculate actually doesn't blow colder air like all other cars I've owned.
Do you guys use recirculate or straight outside air? I find that this car in recirculate actually doesn't blow colder air like all other cars I've owned.
Thread Starter
Member
Joined: Jan 2017
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W205 C63 S
During 85+ temp I use recirculate so it puts less stress on the compressor and I agree. My previous w204 and few loaner cars I got, I feel like Mercedes AC isn't the coldest. Its definitely more than enough cold but my friends older Toyotas ac feels extremely ice cold in the hot summer and could have you shivering in 100+ degrees.
Junior Member
Joined: Jul 2020
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From: Saudi Arabia
c63s 2020
the recirculation button resets itself after sometime, I have to press it every time an old truck passes or in a smelly area .... annoying if you ask me...
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From: Las Colinas (Irving, Texas)
2024 GLE 63 S AMG SUV
I live in Dallas and I just had the windows on my 2020 C63S AMG Coupe tinted with XPEL Prime XR Plus Ceramic window tint and now the air conditioner freezes me out of the car if I turn it to the coldest setting 
I also had XPEL Ultimate Plus PPF installed on the front as well
I also had XPEL Ultimate Plus PPF installed on the front as well
