Hi all,
My HUD dimmer switch replacement fixed the one problem I had (wouldn't move.)
It unfortunately didn't fix the other problem. When the sun is out the HUD is almost invisible. I just took it apart to reflow the light sensor connections with a soldering iron. Cleaned it and put it back together and no difference.
I did notice that the dimmer switch does nothing in the top third of its travel. In other words, you have to move the switch about 1/3 of the way before it starts to dim the display.
I am suspecting that the LED segments are just wearing out, I recall 50k hours half life or so which would be around 5-6 years of always on time. This car is almost 24 years old now, so it's entirely plausible that it has lost half its brightness.
Unless someone else found another gotcha with these HUD units?
