First hello to everybody, I'm new here and I hope this is the right section and that you will be able to help me.

The car is Audi A4 TDI 1.9 year of production 2000. The original battery lasted aroung 5 years and last week the car did not want to start (no power from battery). So the car was started by connecting external power from another car to this one. After that, the battery was charged over the night but next morning still didnt work so a new battery was bought.
And here's the problem: The dashboard (almost everything on it) doesn't work anymore, the backlight is gone, all instruments arent working, radio and air conditioner backlight is gone, even the lighter's backlight doesn't work.
I don't know exactly since when this problem occured (after connecting other car's power, after charging or after installing a new battery).

If anyone knows why or has similiar experiences please tell me what caused this problem and how to fix it (if it can be done with software-VAG-COM or repairing if something is broken).
First thing i cheked are the fuses and they seem not to be blown. Im looking at some schematics of these electronics but atm I cant find where a power line finishes.
Does anyone have a good link for schematics I need?

Here are some pics I made to show you how it looks CLICK

I hope the post is not too messy and that you will be able to help me if there is anyone with such knowledge

 

Check for a blown fuse.

 

Thank you for your reply. Are there any more fuses besides those on the left of the dashboard, cause i checked those and noone seems blown.

 

Get the car VAGed and post the codes.

 

only 2 fuses for the dash in there #5 and #15 replace them both they might have a bad connection

 

VAG-COM Version: Release 311.2-N


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

Address 01 -------------------------------------------------------
Controller: 038 906 019 BR
Component: 1,9l R4 EDC 0000SG 1064
Coding: 00002
Shop #: WSC 06335
2 Faults Found:
18058 - Powertrain Data Bus: Missing Message from Instrument Cluster
P1650 - 35-00 - -
18057 - Powertrain Data Bus: Missing Message from ABS Controller
P1649 - 35-10 - - - Intermittent
Readiness: N/A

Address 03 -------------------------------------------------------
Controller: 8E0 614 111 AH
Component: ABS/ASR 5.3 FRONT D10
Coding: 00012
Shop #: WSC 06435
No fault code found.

Address 08 -------------------------------------------------------
Controller:
Note: Excessive Comm Errors

Skipping Address 15-Airbags

Address 17 -------------------------------------------------------
Controller: 8D0 920 900 H
Component: KOMBI+WEGFAHRS. M73 D14
Coding: 00140
Shop #: WSC 00000
Ident.-Nr. Wegfahrs.:AUZ5Z0Y0175115
2 Faults Found:
00667 - Ambient Temperature Signal
29-10 - Short to Ground - Intermittent
00668 - Supply Voltage Terminal 30
53-00 - Supply Voltage Too Low

Address 25 -------------------------------------------------------
Controller: Bitte Adress
Component: e 17 eingeben
No Faults Found
or DTCs not supported by controller
or a communication error ocurred

Address 35 -------------------------------------------------------
Controller: 8D0 862 257 B
Component: ZV-Pumpe, Funk D12
Coding: 12865
Shop #: WSC 06335
3 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01366 - Opened Due to Crash Signal
35-00 - -
00956 - Key 2
09-00 - Adaptation Limit Surpassed

Address 56 -------------------------------------------------------
Controller: 4B0 035 186 E
Component: Radio 0001
Coding: 00201
Shop #: WSC 06335
1 Fault Found:
00852 - Loudspeaker(s): Front
36-00 - Open Circuit

End -------------------------------------------------------

 

remove ground wire from the battery - switch all main high beams and fogs on infact anything that draws power and the system will be cleared (leave for 30 mins min) unless you have a VAG then delete the codes and check again, most of the code mean nothing its just the system didn't calibrate properly

 

I cant clear this:
00668 - Supply Voltage Terminal 30
53-00 - Supply Voltage Too Low

If I clear it, it reappears, other codes were cleared, I'll try with battery, too and report. :S

Edit: No, it didnt help clearing the codes with VAG and removing groud from battery for 35mins. Still same problem. Anybody know what could the above code mean, what could be wrong?

 

I think something on the dash panel is not working.
Could anyone be so kind to help me find the appropriate scheme for it? I would also need the scheme of the two connectors (green and blue)...

I have found this scheme but if I follow the line I suspect, after some pages I end at a point where there is a number i cant find in that pdf anywhere and cant see where it ends if anyone knows where it ends please tell me... HERE is a pic of the point that i cant find a sheme for...

If you have any experience in finding schemes for audi electronics I would really appreciate if you could help me...

I have made also pics of the panel... here

 

I'll see if I can find anything when I go home.

Have you just tried re-connecting the connectors and seeing if it was a loose connection?