rear heated windscreen does not work

[audisingh]

i have checked the fuses and they are all intact.

when i press the heated windscreen button, it comes on and then goes off two seconds later.

i have recently wired up the heated seats wiring loom from kufatec.

anybody have any ideas?

:beerchug:

[bez101]

have you nocked a wire when you wired the seats behing the cc

[audisingh]

hi, thats a thought... i will check that. Do you know which column block the heated windscreen wire belongs to behind the climate control unit?

cheers

[bez101]

no idea on what wire is for what just a thought seen as tho u have added wires like i did when i did it on my old b6 u could have knocked 1 out

[audisingh]

checked all the connections behind the climate control. No Luck. I will try the old climate control unit to rule out the wiring maybe.

[audisingh]

just tried the old climate control unit and the rear heated windscreen works. So that rules out the wiring. Could it be the climate control unit?

[benjie]

I was about to ask if you had changed the climate unit due to wearing buttons/heated switches needed and you've answered it!

It is the wiring I'm afraid (or lack of it) Nov 2004 and on units don't have the relay for the rear window in them, the design was changed for some reason. You need to wire a relay in behind it. I have the guide (from another forum member), if you PM me your e-mail address I can send the guide to you. (Can't upload here as the file's too big!

[bez101]

benjie beat me to it its what he said needs relay iv seen a few posts on here on how to do it

[benjie]

I can't take credit however as another forum member told me, though his name escapes me!

[audisingh]

Wired in the relay yesterday and it is working a treat!

Thank you once again!

Happy New Year Everyone!

[benjie]

Good news as it's getting colder!

[badboi4lyff]

hi mate can you tell me how you got the switch to work.. i have the same problem, i got my heater console out of a 2007 a4 and it just lights up for a sec then goes out.. i looked at a post on another site but it looked too complicated..!

[benjie]

PM me your e-mail address and I can e-mail you the instructions. If you find them too difficult (I had to get a mate to help me!) then take them to an independent garage and they should be able to do something with them!

[audisingh]

If you follow the tutorial in the word document that Ben sends you, it should be pretty straight forward. I just brushed up my knowledge on how relays work prior to the install. Let me know if you need any help.

[sdthorne1]

Hi
can anyone please ping me the instructions on how to wire in the above demister relay as i have the same problem after installing a later controller. My email address is sd_thorne@btinternet.com.
Many thanks
Steve

[benjie]

I will e-mail you as soon as I have access to me laptop as the documents are on there...

I'm currently on holiday in Dublin (Mmm... Guiness!)

[benjie]

E-mail sent.

[sdthorne1]

Thanks mate. Took me a while to figure them out but they made sense in the end. However was reading some other posts on here and found one that says you can just swap the face plates over and hey presto.
But thanks again for taking the time to send through!

[Myersjow123]

I was about to ask if you had changed the climate unit due to wearing buttons/heated switches needed and you've answered it!

It is the wiring I'm afraid (or lack of it) Nov 2004 and on units don't have the relay for the rear window in them, the design was changed for some reason. You need to wire a relay in behind it. I have the guide (from another forum member), if you PM me your e-mail address I can send the guide to you. (Can't upload here as the file's too big!


Is there any chance you could give a clue on how to fit this relay please to enable the rear heated window to work. Cheers.

[benjie]

I didn't do mine I'm afraid, a friend (with some auto-electrical knowledge!) did it for me!

[davelee79]

Hi guys! i too am now struggling with the same heated rear window issue! i need the wiring diagram as discussed in this thread ive tried contacting Benjie however im new to this forum so have less than 10 so cannot email him direct, could some one please pm me with an email address so i can contact them direct? I really appreciate any help guys thanks

David.

[benjie]

^ All sorted!

[Sandbags]

Hi guys, I have the same problem, with myA4. Is anyone could send me that wiring diagram, please. 84sandbags@gmail.com Thank you folks

[Myersjow123]

Hello mate just recently bought A4 1.9 tdi and heated rear window not working just wondered if you could send me the wiring diagram for the relay please. My e mail address is alanmyersjow@hotmail.co.uk cheers

[benjie]

Sent the files to you both!

[Sandbags]

Thanks the quick answer Ben. ;)
Very helpfull pdf.
Audi a4 b6 front change to b7 with rieger kit, stuning,real tuning (part 01) - YouTube (http://www.youtube.com/watch?v=C1onVf3Pqcc)

[chris_jan]

Hi Benjie, I have what seems to be the same problem: A4, 52 plate, 130bhp 1.9 Tdi Avant. Indicator light for hrw comes on when you press the button but goes off again. Told by my garage 'twas in the CC unit!

I would be very grateful to see the guide, please. Is there room behind the CC unit to put in the relay? My email is: chris@hand-n-head.freeserve.co.uk

Thanks very much.

[nj12nets]

Hi benjie do you think you could email me the file?

Thank you

[Stashedood]

Hi Benjie , cold I trouble you for the same details plz , my email address is STASHEDOOD@AOL.COM.

Cheers Darren

[Lizard821000]

I’m now having the same issue , to save any work, can you just find a
CC unit with the heated seat option pre 2004 from another b6 and just swop that over with your original? Will that work too? I’m rubbish with electrics and if I can just swop over a unit instead I’m game 🤞🏻

Straight swop like