A/C blower fan and or flap issues
Thread Starter
Newbie
Joined: Feb 2014
Posts: 4
Likes: 0
1999 CLK320
A/C blower fan and or flap issues
My 99 CLk has had this issue since I bought it. The air coming from the vents is hardly blowing out at the rate it should be, even on the max setting. The other issue is that no matter what setting you switch the vents to, there is constantly air coming up through the front window defrost vent. The two center vents also never have air flowing through them, the far side vents on driver and passenger side are the only two that have air flowing through them. Could this be a mechanical flap issue inside the dash or is it related to the control module? I live in south Texas lol and have black interior so I'd like to get this fixed before the weather warms up again.
Junior Member
Joined: Oct 2012
Posts: 37
Likes: 0
2000 Mercedes Benz Clk 320
My 99 CLk has had this issue since I bought it. The air coming from the vents is hardly blowing out at the rate it should be, even on the max setting. The other issue is that no matter what setting you switch the vents to, there is constantly air coming up through the front window defrost vent. The two center vents also never have air flowing through them, the far side vents on driver and passenger side are the only two that have air flowing through them. Could this be a mechanical flap issue inside the dash or is it related to the control module? I live in south Texas lol and have black interior so I'd like to get this fixed before the weather warms up again.
Junior Member
Joined: Oct 2012
Posts: 37
Likes: 0
2000 Mercedes Benz Clk 320
I found instructions by googling it, but if i recall you need to be in position two, set both sides to room temperature (hit hot and cold button on at the same time) and then hit the rest and defog (i think, might need to double check this)
Junior Member
Joined: Oct 2012
Posts: 37
Likes: 0
2000 Mercedes Benz Clk 320
Mercedes w208 clk320 climate control vent flap test:
Mercedes w208 clk320 climate control vent flap test - YouTube
Also see:
2001 E320 Mercedes Airconditioning Flap test and codes AC HVAC - YouTube
Mercedes w208 clk320 climate control vent flap test - YouTube
Also see:
2001 E320 Mercedes Airconditioning Flap test and codes AC HVAC - YouTube
Trending Topics
Senior Member
Joined: Jun 2013
Posts: 287
Likes: 5
From: New Hampshire
Magma Red W208 55 AMG, W203 C230 Kompressor Sedan 6speed M/T, W220 S500
I almost guarantee it's your blower motor regulator. Both my w210 and w208 had this exact problem and in both cases it was the regulator.
MB World Stories
The Best of Mercedes & AMG
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
Super Member
Joined: Mar 2005
Posts: 932
Likes: 38
From: North of Boston
success!!! got a connector for reservoir and voila, center vent blowing AC!!! If you have a center vent AC problem, start at the vent distribution box under glove compartment...I tested it with my mouth to see if suction....if none...trace back to air reservoir hidden behind wheel well (https://mbworld.org/forums/newreply....=714194)...see pics..etc...back to vacuum connection at engine....if any leaks along the way, the vents will all open and middle one stays closed....as soon as vacuum attached to distribution box, they should all operate normally.
