climate control/heater problems?
Thread Starter
Junior Member
Joined: Jan 2015
Posts: 20
Likes: 1
C400
climate control/heater problems?
Hi everyone,
I recently picked up a 2015 C400. I noticed that the air coming out of the central vents on the dash are much cooler than air coming out of the side vents on the dash. Is this normal? Last night it was 40F outside and I had to turn the climate control to 78-80F inside the car to feel slightly warm air coming from the central vents. The side vents however felt at least 10degrees warmer. Is this normal?
I recently picked up a 2015 C400. I noticed that the air coming out of the central vents on the dash are much cooler than air coming out of the side vents on the dash. Is this normal? Last night it was 40F outside and I had to turn the climate control to 78-80F inside the car to feel slightly warm air coming from the central vents. The side vents however felt at least 10degrees warmer. Is this normal?
Junior Member
Joined: Dec 2014
Posts: 18
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2015 C300 4Matic, Premium Pkg, Multimedia Package, Panorama Sunroof
Hi everyone,
I recently picked up a 2015 C400. I noticed that the air coming out of the central vents on the dash are much cooler than air coming out of the side vents on the dash. Is this normal? Last night it was 40F outside and I had to turn the climate control to 78-80F inside the car to feel slightly warm air coming from the central vents. The side vents however felt at least 10degrees warmer. Is this normal?
I recently picked up a 2015 C400. I noticed that the air coming out of the central vents on the dash are much cooler than air coming out of the side vents on the dash. Is this normal? Last night it was 40F outside and I had to turn the climate control to 78-80F inside the car to feel slightly warm air coming from the central vents. The side vents however felt at least 10degrees warmer. Is this normal?
Thread Starter
Junior Member
Joined: Jan 2015
Posts: 20
Likes: 1
C400
Mine is set on Auto. I've also tried various manual settings and there's always a noticeable difference between the center vents and the side vents on the dash. The center vents always blows cooler air.
MBWorld Fanatic!
Joined: Sep 2014
Posts: 1,822
Likes: 33
From: Whitefield, NH
2015 C300 Sport: Palladium, Premium, Multimedia, Leather, BLIS
You can synchronize or unsynchronize both sides with that thing called "synch." Try it both with and without synch enabled, and see if that makes any difference.
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Thread Starter
Junior Member
Joined: Jan 2015
Posts: 20
Likes: 1
C400
I've tried every combination possible and there is always a noticeable difference in temperature from the central vents on the dash. It's never as warm as the air coming out of the side vents. I'm going to do a more scientific test and borrow a laser thermostat from a friend to measure the actual temperature of air coming out of the vents when I get a chance later this week.
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Junior Member
Joined: Nov 2014
Posts: 21
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w205
I haven't noticed this but I have noticed that when the fan is set to level 5 or 6 (hard to tell when on AUTO but you can set it manually) there is a high pitched whistling sound coming from the windshield defog vents. The noise isn't THAT bad but sometimes its more noticeable. The noise goes away if I set it to the max or to the lower setting.
Member
Joined: Jan 2012
Posts: 180
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From: Sydney, Australia
C250 CDI coupe, Obsidian Black Vision Pack, Drive Assist Plus pack, Comfort Pack, Rev Camera
I've tried every combination possible and there is always a noticeable difference in temperature from the central vents on the dash. It's never as warm as the air coming out of the side vents. I'm going to do a more scientific test and borrow a laser thermostat from a friend to measure the actual temperature of air coming out of the vents when I get a chance later this week.
Newbie
Joined: May 2015
Posts: 1
Likes: 0
C300
Hi everyone,
I recently picked up a 2015 C400. I noticed that the air coming out of the central vents on the dash are much cooler than air coming out of the side vents on the dash. Is this normal? Last night it was 40F outside and I had to turn the climate control to 78-80F inside the car to feel slightly warm air coming from the central vents. The side vents however felt at least 10degrees warmer. Is this normal?
I recently picked up a 2015 C400. I noticed that the air coming out of the central vents on the dash are much cooler than air coming out of the side vents on the dash. Is this normal? Last night it was 40F outside and I had to turn the climate control to 78-80F inside the car to feel slightly warm air coming from the central vents. The side vents however felt at least 10degrees warmer. Is this normal?
MBWorld Fanatic!
Joined: Jan 2015
Posts: 2,075
Likes: 59
From: Manchester, UK
BMW e89 Z4 sDrive 35i & MB S205 C200 AMG Premium Plus
If this is anything like BMW, their vents are independently controllable and temp differences are there so you can warm the cabin but keep cool air on your face.
Newbie
Joined: Oct 2015
Posts: 1
Likes: 0
C180 W205
I think I have something similar but stranger. The left side of the car is a lot cooler than the right side despite the fact that I adjusted the settings to low for both zones!
I sent the car to the dealer and they sent that the freon went low somehow! The car is only 500 km and a week old so its very annoying.
They claim that they revised the whole AC circuit and everything seems ok. Any suggestions ?
I sent the car to the dealer and they sent that the freon went low somehow! The car is only 500 km and a week old so its very annoying.
They claim that they revised the whole AC circuit and everything seems ok. Any suggestions ?
