Thought I'd change this to an How to!
this is my first attempt at writing one so might not be great!
First you need to buy some bits (I got mine from Maplins) ...
- LED's - (3mm Blue maplin code N31BY)
They need to be the 3mm ones for the switches but I got different ones for the heater controls simply as they had limited stock.
I would reccomend to try getting wide angle ones for the heater bulbs - something I might change to in the future.
- Resistors (I got 4x M270R for the switches and 1x M43R fot the heater controls - as reccomended by guy in Maplins)
- Shrink Wrap (I just got a mixed bag from Maplins)
Tools Required....
Philips screwdriver
Wire cutters
Long nose pliers
Tweezers
Soldering Iron and solder
Electrical Tester - to determine you have correct illumination wires.
Lighter - to shrink the shrink wrap (could use soldering iron for this)
First remove the swich panel. Just pull up from the corners under the switches.
Then unplug the wiring from the switches and push out each individual switch.
Pull (hard - don't be scared!) the front cover of the switch and it will come off.
Then with long nose pliers carefully pull out the bulb and its holder. The bulb in the middle is the illumination bulb.
With the tweezers unwrap the bulb wire, it loops around twice (easy once you have it in your hand).
Remove the bulb.
I cut down the rupper where the bulb goes just to make more light spread and easier LED fitting.
Now replace with a 3mm LED - This is tricky as the LED contacts are much thicker than the bulbs wires.
I heated the contact up to bend easier. I only looped the contacts around once, no need to go back around. It's too much of a struggle anyway
Refit back into switch with longnose pliers.
Don't re-fit the front as you will need to test for correct polarity and also position the LED.
Now to find the illumination wire - I used the Workshop manual to determine which wire for each switch and also double checked with a electrical meter.
I would suggest you do this asI don't want to take responsibility for you blowing your car up
I found the illumination wire was a Red Wire with a blue trace
The one pulled to the side away from the others in the pic below (this is for rear fog)
Cut the wire and fit in a resistor
Make sure to fit heat shrink tube before soldering both sides
(no pics of soldering - but we all know what that looks like)
Slide over heak shrink and heat up to shrink around resitor and soldered wires
Thats all done - now plug the switch in and test if the bulb works - if it doesn't take out the bulb and fit the other way around.
Once all working hold the switch front upto the switch and check for correct illumination. I had to fiddle about adjusting the LED to make sure lighted up correctly.
Once happy that all is lined up push on the switch front, unplug from wiring.
Repeat this for the rest of your switches and enjoy.