Most of the SMD LEDS on the 999cc Fortwo are PLCC-2 (TANTAL/B) and they
are a very common fitment. Some of these are dome lens type.
Some of the fiments are dome lens PLCC-4, this is unique to the new smart.
There are also some much smaller LEDs being used. These are 0805 package LEDs.
This is where I got mine from, clicky.
I'm Too Scared To Do This, Who Can I Pay?
CrazyLeds can change your SMD LEDs for you. Just ask them.
Dome Lens Info
The transparent dome narrows the spread of light and evens out the brightness.
Like most LEDs, they only work one way around. Standard LEDs are marked
with a single flat edge and 1 shorter leg. The SMD LEDs have a recessed
triangle in the corner, these are marked as red in the pictures.
Soldering SMD LEDs
The first job is to remove the existing LEDs, you have 3 ways to remove them:
1. Use two soldering irons, one on each joint and flick the LED off;
2. Use one soldering iron and a solder sucker, can be awkward because of the size;
3. Use one soldering iron and some solder wick to remove the excess.
Once the board has been purged of LEDs, clean the board up and flux the solder pads on the board and LEDs. Position one of the replacements and quickly solder each side.
The 'normal' way to solder is to touch the tip to the device and push the solder against the tip and the device until it melts. When soldering SMDs this isn't recommended as the heat will kill it.
It is better to melt the solder onto the tip and quickly dab the soldered tip onto the LED, this limits the heat transfer, flux will help the solder flow to the LED quickly shortening the time even more.
Once they have all been done, visually check the whole thing before testing, if any of
them don't work then check the solder joint and the orientation of the LED.
Remove the stereo as seen here.
Remove the Torx9 screws from top and bottom.
The fascia will now fold down to reveal the 16 Torx6 fixing screws. Remove all of these.
All of the LEDs in the stereo are 0805 package LEDs, these are very small so you had better hone your soldering skills before attempting this. These are only 2mm long and 1.3mm wide!
There are 22 visible 0805 package LEDs on the stereo front ...
...and 2 more under the volume knob. You have to pull the knob and the plastic light guide off.
You will have to untwist the LCD frame from the back of the stereo to see the LCD LEDs.
The below picture shows the orientation of the LEDs and marks the holes for the LCD frame.
The LCD is lit by 5 PLCC-4 LEDs.
Replace all or some to achieve the look you require.
Looks much nicer.
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