Ok folks.. the ones still having this stupid problem, I had the same problem with my MK5 2008 MFD fading out all the freaking time!
BUT, now I know how to fix without paying $1000 for the dealer.. btw, fuck the dealer..
1- disconnect the negative cable battery from your car
2- follow this instructions here:
http://www.myturbodiesel.com/1000q/a5/instrument-cluster-removal-jetta-golf.htm
3- after removal the cluster.. open the cluster like the instructions..(DO NOT DISASSEMBLE THE SPEEDOMETER AND RPM GAUGES)
4- you gonna see the MFD LCD glass connected with a ribbon..with the motherboard in the cluster, using 2 toothpicks raise the 2 arms around the ribbon
5- take out the MFD from the white plastic fixture, be careful the MFD is a very tinny piece of LCD glass, so don't fuck around too much!
6- taking the LCD glass out.. use some Q-tips with alcohol and do some light cleaning on the ribbon connectors.. after, make sure is dry!
7- re-connect the ribbon back on the motherboard all the way down! btw, this cluster was built by SIEMENS in Germany, and looks like they didn't have connected all the way down, and by the time seems to get little dirty
8- re-assemble the entire cluster and install in your car again.. re-connect the negative battery again and VOILA!!! now I have my MFD shines and running strong like the SUN! No more defective lines and flickering! :happyanim:
I already fixed 4 MFD from mk5 before.. all with the same procedure above.. 100% fixed after! :wink:
If you guys need some photos, I can post later... step by step
Hope this helps!