you don't say what year your Golf is but most are just a simple case of removing the front facia , usually held in with a couple of screws,on later golfs you have to remove the stereo. Unscrew the speedo dials and reach around and unclip the power blocks and speedo cable this lets you tilt the unit forward and unclip the bulbs. new bulbs can be bought at a auto store and replaced easily. the longest part is removing the facia
Try changing the headlight switch.
Why?
The speedometer doesn't work. It doesn't respond to the speed we are going.
It depends on the year and options. Which year model are you asking about? On the 1996-2000 cluster, there's a light between the tach and speedometer for the cruise control (if equipped).
Tach is driven by a motor signal, speedo is from the trans the sensor is bad on the transmission
you have to pull the entire speedometer cluster on the back of it you will see little lights turn them until they come out and replace them with new ones
Blue wire is for a tach I believe
For lights behind the speedometer/tach warning light area, you have to take the screws out of the panel and then guide it out enough that you can twist it sideways and pull out the burned out bulbs. Replace with bulbs #194 and I would use the Long Life version of the bulbs.
There isn't one, you shift by "feel" or by the red tick marks on your speedometer ,|,&.
The Mazda tachometer and the speedometer have separate cables. The tachometer cable probably does not work properly. Change the tachometer cable.
If you only need bulbs then your solution is easy, however if the needles themselves no longer illuminate, then there is no bulb to replace since the needles are the bulbs. Your local Lexus dealer will be happy to assist you in this matter, there is one catch...they will only sell you the entire instrument panel. The last quote I got was around $300.00.
you need to replace dash illumination bulbs only problem the speedometer cluster has to be removed