Fiestaguides.co.uk > Guides > Interior

Ever wanted to change your dials to something a little different?
Well I did, so I decided to try and fit the mk4 dials after I read Al's (Project/DJStalker)
very good guide, but I decided to fit the black versions of the dials as you don't see them
very often and because they only cost me a fiver!

So in this guide I will show you how to wire them up to a non air bagged Mk3
and a Air bagged MK3 and 3.5 using a homemade adaptor so you do not have
to cut the original wiring loom in your car.

this guide also shows you how to wire up the door ajar warning light .

I will also show you how to fit and wire up a low washer fluid sensor and the mk4 low fuel indicator in a later guideand

Tools Needed:

Soldering iron and stand,
Solder,
Helping hand or crocodile clips.
Screwdrivers
Dremal and bits
Insulation tape
Hot melt glue gun
Copper Clad board (www.Maplin.co.uk)
PCB socket and plug (www.Maplin.co.uk)

Mk4

Like It

Loking Good

Applies to:
All Mk3 and Mk3.5 Fieatas

Firstly you will need to get hold of a set of mk4 clocks out of a higher spec like Ghia if possible,
as they will have all the wires. You can get one from a scrap yard or Ebay, your call. From a scrap yard you will need to remove the trim around them, this is done by undoing
the 2 screws in the dials aperture and one under a cover at the side of the centre vents.
Once out, simply undo the 4 screws holding the cluster to the dash and pull out.
Disconnect the Speedo cable then Cut the loom as far back as you can to give you plenty of wire to play with.
Below are the new mk4 dials that will be fitted into a mk3 dash, notice the two connectors, one white and one blue.

The mk4 clocks are basically the same as the mk3 versions therefore do not require much altering to fit.

Set too and remove your original clocks. 2 screws under the cowl and 4 around the cluster.
Pull out and disconnect the Speedo cable and the wiring multiplug.

Making the PCB,

Get some copper clad board, and simply push it into the socket connector in the car
while the ignition is off and it will scratch the surface of the copper,
take the board out of the connector and mark in between the scratches.
Mark 1cm from the edge of the board and mark it.

Cut the board down to the 1cm line and use a hack saw blade to notch through just
the copper between the scratches, on the lines.

Use some cleaner and remove the excess pen.

Now use a 1.5mm drill bit and drill on each section of copper in line with the scratches.
This hole is for the wire from the mk4 loom.

Use the table below and connect the wires to the copper board. Strip the ends of the wires and push the exposed wires through the board
from non copper side and solder in place.

Mk3 clocks NON AIRBAG

White Plug

Mk4 Pins Mk4 Wire Colour Function Mk3 Pin Mk3 Wire Colour

W1 Violet + 12 Volts ignition 6 Black/Yellow

W2 Black/orange Low Fuel Light N/A N/A

W3 Black/Red Low Washer Fluid Light N/A N/A

W4 White/Green Choke Warning Light 9 Brown/green

Glow Plug Warning Light 9 Brown/yellow

W5 Black Earth 5 Brown

W6 White/Red Fuel Gauge 4 Brown/Black

W7 White/Red Engine Temperature Gauge 3 Brown/White

W8 Black/Blue Brake System Warning Light 8 Brown/Yellow

W9 Black/Red ABS Warning Light 7 Brown/Black

W10 Black Earth 5 Brown

W11 Violet/White High Beam Light 12 Blue/White

W12 Orange/Blue Dash Illumination 13 Grey/Yellow

Blue Plug

Mk4 Pins Mk4 Wire Colour Function Mk3 Pin Mk3 Wire Colour

B1 Blue/Black Indicator, Left 14 Black/Green

B2 Blue/Yellow Indicator, Right 15 Black/White

B3 Black/Blue Door Ajar Warning Light N/A N/A

B4 Black/Red Traction Control Warning
Light(Linked to W9) N/A N/A

B5 Black/Orange Catalytic converter
Warning Light N/A N/A

B6 Black/Green Airbag Warning Light N/A N/A

B7 Blue/Black Alternator Charge Warning
Light 2 Blue

B8 White/Black Rev Counter 10 Green

B9 Black Earth 5 Brown

B10 Black/Green Low Oil Pressure Warning
Light 1 Brown/Green

B11 N/A N/A N/A N/A

B12 N/A N/A N/A N/A

Mk3 clocks WITH AIRBAG

White Plug

Mk4 Pins Mk4 Wire Colour Function Mk3 Pin Mk3 Wire Colour

W1 Violet + 12 Volts ignition 6 Black/Yellow

W2 Black/orange Low Fuel Light N/A N/A

W3 Black/Red Low Washer Fluid Light N/A N/A

W4 White/Green Choke Warning Light Additional Brown/green

Glow Plug Warning Light Connector Brown/yellow

W5 Black Earth 5 Brown

W6 White/Red Fuel Gauge 4 Brown/Black

W7 White/Red Engine Temperature Gauge 3 Brown/White

W8 Black/Blue Brake System Warning Light 8 Brown/Yellow

W9 Black/Red ABS Warning Light 7 Brown/Black

W10 Black Earth 5 Brown

W11 Violet/White High Beam Light 12 Blue/White

W12 Orange/Blue Dash Illumination 13 Grey/Yellow

Blue Plug

Mk4 Pins Mk4 Wire Colour Function Mk3 Pin Mk3 Wire Colour

B1 Blue/Black Indicator, Left 14 Black/Green

B2 Blue/Yellow Indicator, Right 15 Black/White

B3 Black/Blue Door Ajar Warning Light N/A N/A

B4 Black/Red Traction Control Warning
Light(Linked to W9) N/A N/A

B5 Black/Orange Catalytic converter
Warning Light N/A N/A

B6 Black/Green Airbag Warning Light 9 Brown/White

B7 Blue/Black Alternator Charge Warning
Light 2 Blue

B8 White/Black Rev Counter 10 Green

B9 Black Earth 5 Brown

B10 Black/Green Low Oil Pressure Warning
Light 1 Brown/Green

B11 N/A N/A N/A N/A

B12 N/A N/A N/A N/A

Please note that on airbag models pin 9 on the mk3 wiring is for the airbag control light,
meaning that if the mk3 is a diesel then the glow plug warning light is wired up
separate to the main plug and would require tapping into the wires and the original bulb removing.

In the middle of the board there will be dead space so drill a hole large enough
to push a tie wrap through, this will secure the board to the original wiring.

At the end of the copper board drill 2 holes for the low washer fluid wire and the other for the door ajar wire.
Directly in front of these drill more holes to allow a connector block to fit.

Through the drivers side air vent you will be able to see a wire going up the A pillar towards the roof,
within this there will be a Brown/Red wire. Take a spur from this and run it to the pin crated for
the door ajar warning light. Insulate the connection and secure the wires.

Double check the gaps between the connection copper plates to ensure no solder has bridged them.

Use some sticky backed foam or hot melt glue and insulate the back of the board. Then wrap all the wires together.

Remove your existing clocks if not done so, plug the new connector into the existing loom,
then to the back of the mk4 clocks.

Test them to make sure all the functions work this includes switching the key to
ignition where the battery and oil lights will come on and the airbag if present. Turn the key to start the car and it should move the rev counter dial a little.
If it doesn't, don't worry about it at the minute.

Flick the indicator stalk to indicate in the directions, left and right and it
should blink the light on the dash.

Pull the indicator stalk towards you and you will flash your main beam and the
blue light will illuminate.
Turn the sidelights on then the headlights and the dash should illuminate

If you have a manual choke, pull it out and the swirly line will illuminate,
this is meant for the glow plug warning light but doubles up as a choke.

If for any reason any of the above does not light up then the bulbs may be faulty, replace and try again.

Disconnect the multiplugs and the adaptor and set to one side while you modify
the dash slightly to enable the clocks to fit the hole.

You will need to cut the bottom of the dash opening a little to allow the clocks to fit,
Cut the bottom mountings off the clocks to allow them to fit into the hole.
At the side of where the mountings used to be there will be a slanted piece of plastic,
cut this off flat as in the picture. It will stop the clocks falling back through the dash.

Again the top of the clocks will need modifying to make them fit the mk3 dash. See the pictures below.

To fix the clocks in you will need to create a bracket out of metal to connect
the mounting lugs at the top to the dash, the bottom of the clocks are just wedged in and kept in by the cowl.
Re-connect the wiring adapter and tie-wrap it secure and wrap it all in insulation tape.
Screw the clocks in then replace the cowl and secure it with the screws.

You may notice that the rev counter may read half the value of the old dials, on some cars(Engine dependent.)
this is a known problem and i am trying to figure out how to fix this, so please check back for details.

And that's it for this guide, sorry if some areas are vague but I'm just learning the mk4 conversions.