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Audi A4 Rear Demister Not Working

Cut 4mm wire F5 (White/Yellow) around 1.5 inches back from "F" connector. After calling an Audi Parts guy to figure out which relay controls the rear defroster, I was told that it is Relay #7 under driver's side dash panel. Coding 00?xx: Chassis 0 = Sedan/Avant 1 = Cabrio 00x?x: Heated Windshield 0 = Heated Windshield not installed 1 = Heated Windshield installed 00xx?: Sunroof 0 = No Sunroof OR Normal Is there any need to do any coding now? my review here

I'm glad you were able to fix it and take some pics of the repair. I have also checked the voltage on the defroster lines with a multimeter but there was 0 volts. Powered by vBulletin Version 4.2.2 Copyright © 2016 vBulletin Solutions, Inc. VCDS Map User Joined: Dec 8, 2007 Messages: 951 Likes Received: 15 mlody said: ↑ The old relay was perfect and I put that one back in but the wires have http://www.vwaudiforum.co.uk/forum/showthread.php/55319-Rear-Demister-not-working

Mine was on the right hand side - the brown return wire. Any reputable automotive shop should stock them - go to the shop and say, "Do you have a 12v 30A Automotive Relay Mr Shopkeeper!" Also available from Maplins - 40A rated Human Verification In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in Honestly I've just been to lazy to take the rear deck and what not off to figure out what the problem is.

My issue was a damaged wire connected to the switch, which needed to be replaced. If you would like to provide feedback/suggestions please post in here in the Store Feedback forum. ~ Community Support Results 1 to 18 of 18 Thread: A4 Sedan Rear Defroster Not This will save you having to fork out £70+ for a new motor just before Xmas !!! double din CD player from a B7 A4) won't power on.

Can you remember which module controls the heated elements in the Vag com? It was 40 amp relay as suggested by the Audi Parts guy, although I have not found any other electrical problems in the car. bugger edit*** I just had to add a pin in the block for +UB and run a wire to a power feed from SENS. The "thick" wires will get warm owing to the amount of current the rear window element draws - the fuse is 30A.

Further investigations are required to look into the coding of these two units. Does your new unit have the switches for heated seats, and you don't have heated seats fitted? Iím sorry for the delay in posting this update but I was swamped with work and traveling. The new unit worked okay apart from the rear demister switch/led acting exactly like your getting.

XenForo add-ons by Waindigo™ ©2015 Waindigo Ltd. find more info This is all a bit more complex than my 1986 vw T3 haha Last edited by Christofy; 03-01-2013 at 06:20 AM. Some XenForo functionality crafted by Audentio Design. Current road going missile..... ........Smart Roadster - arguably the most fun you can have in a car without using lube!! #2 Nickynibbles, Jan 8, 2008 blackwood Member Joined: Mar 18, 2004

As you can imagine,this is doing my head in,especially at this time of year,it is a nightmare trying to keep the screen clear.Even at running temp and on auto,the screen will this page Complete. I have also checked the voltage on the defroster lines with a multimeter but there was 0 volts. I don't think there is one that is labeled 7 but I could be wrong.

Advanced Search Forum Model Specific Sections Volkswagen - Sponsored by Hyper-Remaps Golf - Jetta - Vento - Bora Golf MK4 - 1999 - 2004 Rear Demister not working? Any idea what coding I should look at with the vag com? Fingers crossed yours is sorted now, did you time yourself putting the glovebox back on? get redirected here Also due to me discovering the car has auxiliary heating, which is excellent and relieves the problem of the wires a little...

Any advice would be appreciated! __________________ Laser Red 2000 Audi A4 1.8TQM 12-09-2013, 01:47 PM #2 The Stig Audiworld Junior Member Join Date: May 2009 Location: Greensboro, My local garage has a code reader,though not vagcom,so will try that tomorrow and see if it shows anything up. Other solutions?

I also cleared any DTC errors with VAG-COM - I tested at various stages to see if relay switched and the rear demist light would stay on before connecting the 12V/30A

HELP! Email Address: OR Log-in User Name Password Remember Me? the question is, How is the rear demister activated, Where is the timer/control unit ? Have checked the fuse and all seems OK so....

i took the aircon unit out and behind it i've seen melted wire (from the relay). By continuing to use this site, you are agreeing to our use of cookies. Any help would be appreciated! http://da4design.com/audi-a4/audi-a4-windscreen-demister-not-working.php Then we want to hear what you think about the merchandise you bought.

Tried it again with the same result. Not that I use the climate much, sunshine means roof down woohoo 2003 A4 Cab 2.4 V6 Manual / 54k miles genuine woohoo (on a 11 year old car lol) This one should be labeled 213. I took the glove box off and the green servo and gave it all a wiggle and its all working now????

Which 2 pins are you referring to? This is exactly what I did with mine. I have a lead but have very little experience with using it. I also used this how-to for photos of whats under the D-pillar.

The way it is wired in the photo prevents the rear demister from ever receiving positive power. VCDS Map User Joined: Dec 8, 2007 Messages: 951 Likes Received: 15 fourcircle said: ↑ My new climate control unit is working without having to code it in VCDS. If it does then try pressing the up arrow with the climate in auto mode and turn the fan speed up. User Name: Password Please enter a password for your user account.

Regards Keith Re: Rear Demister not working? #3 bpascua View Profile View Forum Posts View Blog Entries View Articles View Gallery Uploads Stalled Join Date Oct 2007 Posts 5 Post