B5 Models Please discuss all 1996 - 2001 B5 A4 topics here...

Defroster

Thread Tools
 
Search this Thread
 
  #1  
Old 03-05-2008, 12:46 PM
Shwabmyknob's Avatar
1st Gear
Thread Starter
Join Date: Jul 2007
Location: Latham NY
Posts: 183
Default Defroster

If I let my car sit the snowflake light comes on and the windows clear but as soon as I start driving it goes off and then they fog up and I can't see jack. Its been raining for two days straight so its pretty hard to drive right now since I can barely see out of my windows.
 
  #2  
Old 03-05-2008, 01:01 PM
Leifer's Avatar
Senior Member
Join Date: Oct 2007
Location:
Posts: 1,037
Default RE: Defroster

I don't get it. Do you have the defroster on...? Where does the snowflake light come up? If it comes up on the dash, it merely means "**** man it's cold as ***** outside"
 
  #3  
Old 03-05-2008, 02:12 PM
Shwabmyknob's Avatar
1st Gear
Thread Starter
Join Date: Jul 2007
Location: Latham NY
Posts: 183
Default RE: Defroster

Down by the heater controls there is a snowflake button. If I hit that nothing happens it won't stay on. But what I'm saying is that when i have the defroster on if i'm stopped the snowflake appears down on the heater controls and the windows clear, but when i drive it dissapears.
 
  #4  
Old 03-05-2008, 06:36 PM
Shwabmyknob's Avatar
1st Gear
Thread Starter
Join Date: Jul 2007
Location: Latham NY
Posts: 183
Default RE: Defroster

Nobody? I can't see and it sucks.
 
  #5  
Old 03-05-2008, 06:51 PM
auditech79's Avatar
Site Moderator
Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004
Default RE: Defroster

When the snowflake button is lit (pre 2000 models) it means the A/C compressor is on and its drying out the window. The engine management WON'T let you use the A/C compressor if its too cold outside so it doesn't freeze up the lines.

The same applies to 2000+ vehicle that get the snowflake icon in the display, if the snowflake is on, the A/C can't be used.
 
  #6  
Old 03-05-2008, 07:53 PM
Shwabmyknob's Avatar
1st Gear
Thread Starter
Join Date: Jul 2007
Location: Latham NY
Posts: 183
Default RE: Defroster

Thanks, Thats prolly it its been around 33 degrees here so thats why it shuts off, but how come it works when i'm stopped?
 
  #7  
Old 03-05-2008, 08:00 PM
hiwords's Avatar
5th Gear
Join Date: May 2007
Location: noob from NY
Posts: 7,728
Default RE: Defroster

no idea why it works when you're stopped but just use 63* and have the fan all the way up.it's alot slower but that's your last resort lol
 
  #8  
Old 03-05-2008, 10:17 PM
Shwabmyknob's Avatar
1st Gear
Thread Starter
Join Date: Jul 2007
Location: Latham NY
Posts: 183
Default RE: Defroster

Yea, so i just found my problem. I reached in the back to grab something only to put my hand in a F****ing puddle. The drivers side front is a little damp but the drivers side rear was SOAKED. Any idea where I should check for leaks. Its dark and cold so i'll have to check tomorrow and use the extractor on the carpets.
 
  #9  
Old 03-05-2008, 11:07 PM
auditech79's Avatar
Site Moderator
Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004
Default RE: Defroster

You need to pull up the carpets and use a shop vac to suck all the fluid out of the 4" mat.
Once thats all dried out, check the pillars for water damage, if you see that, its the sunroof leaking. If no water damage is present, the pleanum drain under the battery got clogged up and flooded the compartment through the pollen filter housing. Take out the battery and un-clog it.
Also, check the coolant level, if its low it could be your heater core leaking.
 
  #10  
Old 03-05-2008, 11:23 PM
Shwabmyknob's Avatar
1st Gear
Thread Starter
Join Date: Jul 2007
Location: Latham NY
Posts: 183
Default RE: Defroster

Thanks for the info, Which would be the easiest to fix? I did have the sunroof open yesterday while it stopped raining for a bit so maybe It didn't seal properly? What do i have to unclip to get the carpet up?
 


Quick Reply: Defroster



All times are GMT -4. The time now is 06:55 AM.