DIY A/C Button
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
DIY A/C Button
Hey, guys I tackled this project over the summer and took some pictures to write up a DIY but never got around to do it. So here it is, I hope this helps.
Materials:
Sheet Styrene
Q-Tips
Glue (preferably "hobby" glue)
Isopropyl Alcohol
AC Removal Keys
Pencil
"Baby" flat head screw driver
"Baby" phillips screw driver
Materials:
Sheet Styrene
Q-Tips
Glue (preferably "hobby" glue)
Isopropyl Alcohol
AC Removal Keys
Pencil
"Baby" flat head screw driver
"Baby" phillips screw driver
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Step 1: Removing the A/C unit
Step 1: Removing the A/C unit
Take the AC REMOVAL keys (which you can purchase at your local Stealership)
And insert them into the AC unit.
Make sure to push in hard enough until you hear a click and remove the wiring harness.
Take the AC REMOVAL keys (which you can purchase at your local Stealership)
And insert them into the AC unit.
Make sure to push in hard enough until you hear a click and remove the wiring harness.
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Step 2: Dissassembling the A/C Unit
Step 2: Dissassembling the A/C Unit
Remove the three screws located on the bottom of the unit.
Then, remove the cover.
Finally, be VERY careful and remove the head unit plate because there is a wire attached.
Remove the three screws located on the bottom of the unit.
Then, remove the cover.
Finally, be VERY careful and remove the head unit plate because there is a wire attached.
Last edited by CLK430Benz; Mar 3, 2011 at 10:49 PM.
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Step 3: Remove the Front Facing Head Unit Cover
Step 3: Remove the front facing head unit cover
Make sure to remove the broken plastic button that looks like this from the unit. However, this is a picture of the fixed finished part.
Then flip it over to expose the broken button if it is not the + - Fan Control Button.
As you can see there is a broken plastic piece that creates the contact to activate the button. Here, you have to cut a very thin piece of the sheet styrene with the scissors to bridge the open gap to recreate contact with the electrical board of the unit. Then take the q-tips with isopropyl alcohol clean the plastic parts so to allow the glue to stick better (make sure you do this to the broken part too). Then apply a very little bit of glue to both parts stick them together. Let it dry for about 5 minutes and it should then look like this:
Make sure to remove the broken plastic button that looks like this from the unit. However, this is a picture of the fixed finished part.
Then flip it over to expose the broken button if it is not the + - Fan Control Button.
As you can see there is a broken plastic piece that creates the contact to activate the button. Here, you have to cut a very thin piece of the sheet styrene with the scissors to bridge the open gap to recreate contact with the electrical board of the unit. Then take the q-tips with isopropyl alcohol clean the plastic parts so to allow the glue to stick better (make sure you do this to the broken part too). Then apply a very little bit of glue to both parts stick them together. Let it dry for about 5 minutes and it should then look like this:
Last edited by CLK430Benz; Mar 3, 2011 at 11:01 PM.
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Step 4: Fixing the + - Fan Control
Step 4: Fixing the + - Fan Control
To fix the + - Fan Control you apply the same concept mentioned above. Cut the sheet styrene to act as a crutch for the button. Make sure both plastic pieces are cleaned with isopropyl alcohol before applying the glue. Then let it dry again for 5 minutes and reinstall the part back into the head unit.
To fix the + - Fan Control you apply the same concept mentioned above. Cut the sheet styrene to act as a crutch for the button. Make sure both plastic pieces are cleaned with isopropyl alcohol before applying the glue. Then let it dry again for 5 minutes and reinstall the part back into the head unit.
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Step 5: Put Everything Back Together = DONE!
Step 5: Put Everything Back Together = DONE!
Hope this DIY helped. It was my first and if you have any questions send me a PM or an email. My climate control is working perfectly to this day.
ENJOY!
Hope this DIY helped. It was my first and if you have any questions send me a PM or an email. My climate control is working perfectly to this day.
ENJOY!
Last edited by CLK430Benz; Mar 3, 2011 at 11:19 PM.
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Newbie
Joined: Mar 2011
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2001 CLK 55
Amazing, thank you soo much! this has been a great help and encouragement to keep my car.
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Junior Member
Joined: Aug 2007
Posts: 23
Likes: 0
From: Jacksonville Beach, FL
2001 CLK55
This had the makings of a great DIY post, so after reading it carefully I have learned how to remove the head unit and the backplate. Nothing else.
Newbie
Joined: Apr 2010
Posts: 4
Likes: 0
2001 Clk55 AMG
Hi Clk430
Great job on posting the Dyi on the AC button repair. I have a 2000 clk430 and my AC + - are not working also my drivers side Auto button. Can you repair it for me if I ship it to you. You make it l
Great job on posting the Dyi on the AC button repair. I have a 2000 clk430 and my AC + - are not working also my drivers side Auto button. Can you repair it for me if I ship it to you. You make it l
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Sorry, I can not repair it for you because I do not have the time and I do not want to take the responsibility if something else breaks.
If you have any questions, don't hesitate to ask.
Best!
Newbie
Joined: Jun 2012
Posts: 3
Likes: 0
From: Atlanta, GA
2002 clk 430
Hey, guys I tackled this project over the summer and took some pictures to write up a DIY but never got around to do it. So here it is, I hope this helps.
Materials:
Sheet Styrene
Q-Tips
Glue (preferably "hobby" glue)
Isopropyl Alcohol
AC Removal Keys
Pencil
"Baby" flat head screw driver
"Baby" phillips screw driver
Materials:
Sheet Styrene
Q-Tips
Glue (preferably "hobby" glue)
Isopropyl Alcohol
AC Removal Keys
Pencil
"Baby" flat head screw driver
"Baby" phillips screw driver
Junior Member
Joined: Nov 2007
Posts: 16
Likes: 1
From: Huntington Beach
2011 E550 Coupe, 2002 CLK55 AMG
Great DIY...made me understand how things work inside the unit. Bought the keys on ebay for a couple bucks and repaired the Auto button and fan speed button. Problem was the DIY is very vague regarding the removal of the faceplate. No way in hell that it comes off without removing every button. After messing with it on my kitchen table for hours I ended up putting it back in the car...popped off the bad buttons from the front...pulled the broken pieces out with tweezers...glued and braced them...popped them back in and forgot about it. Its been fine for 4 months. The bracing (crutch) is brilliant...but why all the extra work? And how the F did you remove the faceplate???
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Great DIY...made me understand how things work inside the unit. Bought the keys on ebay for a couple bucks and repaired the Auto button and fan speed button. Problem was the DIY is very vague regarding the removal of the faceplate. No way in hell that it comes off without removing every button. After messing with it on my kitchen table for hours I ended up putting it back in the car...popped off the bad buttons from the front...pulled the broken pieces out with tweezers...glued and braced them...popped them back in and forgot about it. Its been fine for 4 months. The bracing (crutch) is brilliant...but why all the extra work? And how the F did you remove the faceplate???
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 386
Likes: 2
From: New York
2010 C300 4MATIC
Sorry, I don't remember. I do remember though that it was slightly thinner than a credit card and thicker than a business card. Hope this helps.
Newbie
Joined: Jun 2012
Posts: 3
Likes: 0
From: Atlanta, GA
2002 clk 430
Great DIY...made me understand how things work inside the unit. Bought the keys on ebay for a couple bucks and repaired the Auto button and fan speed button. Problem was the DIY is very vague regarding the removal of the faceplate. No way in hell that it comes off without removing every button. After messing with it on my kitchen table for hours I ended up putting it back in the car...popped off the bad buttons from the front...pulled the broken pieces out with tweezers...glued and braced them...popped them back in and forgot about it. Its been fine for 4 months. The bracing (crutch) is brilliant...but why all the extra work? And how the F did you remove the faceplate???
Newbie
Joined: Jun 2012
Posts: 3
Likes: 0
From: Atlanta, GA
2002 clk 430
Junior Member
Joined: Nov 2012
Posts: 67
Likes: 3
From: Thermal, CA
2004 CL500; 2010 S 63 AMG; 2001 CLK430 Convertible Designo,; 2012 CL63 AMG Black on Black Designo
Hello, I have not been here in a while. Is there a way to see the pictures that are now missing?
Thanks.
I need to push both auto buttons to reset my ac fault codes and one does not work
Thanks.
I need to push both auto buttons to reset my ac fault codes and one does not work
