Defroster button
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Member
Joined: May 2005
Posts: 180
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From: CA
09 S550
Defroster button
My friend has 2005 E-500 and when he turns the defroster mode on (for foggy windows hot air with A/C starts blowing on max) He can control the speed of the fan.
When I do it on my 2006 E-500 it just goes to max and I can not control the speed of the fan.
Can you guys post you year and model and tell me if you can contorol the speed of the fan or it just stays on max. Please do not confuse this with "auto" mode.
When I do it on my 2006 E-500 it just goes to max and I can not control the speed of the fan.
Can you guys post you year and model and tell me if you can contorol the speed of the fan or it just stays on max. Please do not confuse this with "auto" mode.
Member
Joined: Jun 2005
Posts: 168
Likes: 1
From: Southern California
2016 E350, 2013 C300 4MATIC, 2004.5 C230SS
Originally Posted by AJU_E350
'06 E350 - Seems like mine does MAX only. I'll double check tonight but I was thinking the same thing the few times I used it: "Why can I NOT adjust the fan speed???!!"
Beside somewhat noisy, it did clear up the windsheld pretty darn fast.
Thread Starter
Member
Joined: May 2005
Posts: 180
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From: CA
09 S550
Well that is what i thought, but my friends e-500, 2005 does it and he had a rental e-350, 2006 and it did it too. That is why this came up. What I want to find out how is it designed to work and how many people have it the way i do - can not control the fan speed.
thanks.
thanks.
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Newbie
Joined: Jul 2004
Posts: 10
Likes: 0
From: South Central Pennsylvania
2003 E500, vent seats, pano, solar, karmon hardon tunes
Defroster Fan
I had a '99 E320--could not lower the fan speed when using the defrost mode. When I got my '03 E500, was happily surprised that I could slow down the fan. It does staqrt on HI, but I can lower it to about 1/2 way.
MBWorld Fanatic!
Joined: Dec 2003
Posts: 1,439
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From: THE NAPA VALLEY, CA
Build date 2-04 E500
I also have full control over the fan speed from the highest setting to the lowest. Make sure your pressing the smaller fan icon and not the larger one..... I also notice when the defroster is activated it leaves the auto mode and goes to manual.
Last edited by HELL ONA HARLEY; Jan 2, 2006 at 11:09 PM.
MBWorld Fanatic!
Joined: Sep 2005
Posts: 6,189
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From: Albuquerque
'10 CL550, '12 GL550
It's a European regulation that cars must have a "max defrost" setting that's easy to obtain. That's what the defrost button is for. That's all it's for.
Otherwise, just use "auto" or use the contol wheel on manual to adjust where air goes and adjust fan speed.
Otherwise, just use "auto" or use the contol wheel on manual to adjust where air goes and adjust fan speed.
Thread Starter
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Joined: May 2005
Posts: 180
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From: CA
09 S550
Yeah i understand that. The thing that I do not get is how come some E allow control and some the same year don't. What I am trying to find out is how is it suppose to be (designed) from the factory?
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Joined: May 2005
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From: CA
09 S550
And one more thing.
When defroster mode is DIactivated A/C still stays on, is that how your cars are?
I also notice that after you diactivate the defroster mode, and diactivate A/C it still blows cold A/C air for about 5 min even though you have the tempruture set at 74.
When defroster mode is DIactivated A/C still stays on, is that how your cars are?
I also notice that after you diactivate the defroster mode, and diactivate A/C it still blows cold A/C air for about 5 min even though you have the tempruture set at 74.
Super Member
Joined: Sep 2004
Posts: 551
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From: Virginia
2005 Carlsson CD32 E320 CDI Inline-6
Build date 08/04
Max defrost by pushing the defrost, but I can subsequently slow down the fan by pressing fan down.
It only lets me go down to about 60% fan, no slower.
It only lets me go down to about 60% fan, no slower.
MBWorld Fanatic!
Joined: May 2005
Posts: 1,439
Likes: 540
From: Philadelphia, PA (USA)
2025 E53 Hybrid
Had fan control, but no longer
My E500 with 12/2004 build dated allowed control of fan speed when in defrost mode until today. I requested that the control module be replaced since the "auto" light on the passenger side was positioned slightly out of level. The misaligned light drove me crazy. MB dealer did not want to try to disassemble the switch to fix it so they ordered a complete a/c control panel. The new panel no longer allows control of the fan speed. Also the display is now in white numbers.
