This is my write up - how to repair fading to your dual zone climate control unit back to a nice green glow.
Parts & basic tools needed for job:
(only 5 required) 3mm Blue colour bulb covers (ebay item no. 150491476310)
(only 5 required) 3mm 12v filament 'grain of wheat' mini bulb (ebay item no. 400110358903)
Flat sided (slot screw drive) screwdriver and flat head screwdriver bit
4mm mini hex socket set
Please note the ebay item number for both parts has remained unchanged for the last 2 years. If you are unable to find the part numbers on ebay, then you need to search for the items yourself
Here is mine, note how its faded in the areas as shown in the photos.
Another close up
STEP 1 - Remove the centre dashboard fascia
This is the easy bit, NO TOOLS are required to remove the fascia. Watch how I carefully remove the fascia.
First, press to open ashtray. With the ashtray open, feel the notch beneath the centre dashboard fascia with your hands and gentle pull away starting from bottom and working your way round the fascia. The fascia is held in position by several clips.
For extra room, you may want to shift the gear selector to neutral, please ensure foot brake is applied at all times and keys are removed from the ignition barrel before disconnecting the Dual Zone Climate Control Unit.
STEP 2 - How to separate the Dual Zone Climate Control Unit from the fascia
There are 4 mini bolts/hex screws holding the Dual Zone Climate Control Unit to the fascia. They all need to be undone to separate the unit from the fascia. You will need 4mm mini hex socket to undo them at each corner and its easy to do. See photo illustration and video.
STEP 3 - How to dismantle the Dual Zone Climate Control Unit
The Dual Zone Climate Control Unit is separated from the centre dashboard fascia and is now ready to be dismantled.
Pay careful attention!
Turn dials fully to anti clockwise position as illustrated in the photo below. The dials are pattern keyed and must be set fully to the anticlockwise position to extract them from the unit.
Now gently pull to extract each dial from the dual zone climate control unit as illustrated in the photos below. Taking care remove them all one at a time.
Now the dials are all removed, note the pattern key and the reason why it was necessary for the dials to be turn fully to anticlockwise position to extract them.
Now moving onto the next part.
There are 8 notches holding the dual zone climate control unit together. There are 3 notches at the top side, 3 notches at the bottom side, 1 notch each at the left and right side and they all clip together holding the unit in one piece.
Take apart the dual zone climate control unit using a flat head screwdriver or a flat head screwdriver bit and carefully dislodge the unit apart at the notches. See photos for illustration.
Top 3 notches
Left side notch
Right side notch
Bottom 3 notches
When all notches have disengaged, carefully pull apart and remove the top cover of dual zone climate control unit.
This is how it looks with the top cover removed.
Next, remove the plastic optical light distributor, which rests over the dual zone climate control circuit board.
Next, remove the dual zone climate control circuit board by hold the base and flopping it upside down.
IT WILL DROP OUT BUT MAKE SURE YOU CATCH IT!
Dual Zone Climate Control Circuit Board
and this is how it looks on the reverse side.
STEP 4 - Prepare Replacement Bulbs
Colour match to OEM greatly depends on the overall combined colour mix. With non standard parts this is a challenge!
Replace all 5 bulbs with new blue covers and bulbs with the aim to achieve the most best colour match as possible. The blue hue from the cover with yellow output from the filament yields a colour closely match to green. It might not be exact match to OEM, but will be close enough.
Take 5 blue covers and 5 bulbs and slip the covers on as illustrated in the photos shown below.
Next, take bulbs and cut down to length. Measure 1.5cm (15mm) from top of bulb and trim off excess wire at the bottom.
Use tweezers and bend wire to make like little feet. See photo for illustration.
The little bulb feet will aid good soldering mount to circuit board.
STEP 5 - Prepare The Circuit Board
Note basic soldering skills required
There are 5 OEM bulbs denoted on the circuit board as PL1, PL2, PL3, PL4, PL5. For illustration purpose I have numbered them respectively 1, 2, 3, 4, 5, see photo below.
Bulbs 2 and 4 are affected shown at the beginning. Bulbs 1, 3 and 5 were previously replaced by me but I will be replacing all 5 for a good colour match.
Heres PL1, this was previously replaced. Note how I used a non standard bulb holder.
The OEM bulbs are 5mm's in size and are held in place by a holder which provides addition support at the base of the bulb and sits just above the soldered joints to the circuit board. Prepare the circuit board by using soldering iron to remove the bulbs. You need to apply heat from the soldering iron to undo the solder joints and the joints will come apart as it becomes molten. De-solder and remove each bulb one at a time taking extra care not to damage the circuit board.
Remove bulb at PL1
CONTINUED AT POST #18