Bumping an old thread like I always do lol
I just installed paddles in my EX35. It was pretty straight forward, hardest part was getting the paddles mounted. Our cars come programmed for the paddles since they must have the same unified meter box as the G37.
I had to make my own steering column mounts, some aluminum, and brackets followed by 3 cables running from the paddles to the unified meter box above the radio. Then it was smooth sailing, cut the plastics ever so gently and assembled everything.
I got my kit off ebay for $140 since the seller had them in beige only and no one wanted the kit. It didnt bother me since I just wanted the paddles and they are the exact same in all of the kits. The plastics were useless even if i wanted to make them fit. THe EX35 has a narrower steering column design so the oem plastics had to be trimmed and turned out 99% perfect I would say, majority of people would never know it was added after the fact.
Pictures
1. remove steering wheel completely, take out multifunction switches, clockspring, rest of the jazz
2. drill 2 holes and tap to 6mmx1 threads
3. Mount paddles into place (from the front, noticed hex bolts with washers). Paddles have a side bolt as well.
4. Using a piece of 1/8 x 1 inch alloy, drill two side holes and thread to 6mmx1 for side bolts to affix paddles. This prevents paddles from moving side to side. Its just for more support since mine were pretty strong with just the top mount in place.
5. Mount bracket into place and tap a threaded hole into the metal part of the steering column. I used the sharpest drill bits i had to made the job even faster. Tap new thread.
6. Add hex bolt into the new thread for the plate. You will notice the paddle bolt at the very top of the shot as well.
7. MUCH LONGER Than this once pic but the last part is trimming the plastics to fit the paddles. Cut a small slit with a dremel tool to get you started and slowly make the space larger. The side with the steering power switch adjuster is the hardest since its so tight with all the parts together. I used some sticky fabric after the shot to give it a more oem look after the cut. There is no oem option available for our plastics since they are different from the g37.
7.5 More pics of flexible felt I temporarily put in place since it was bothering me. Might leave it as is.
8. Running video
9. Running in D and pressing paddles. It switches to manual mode by itself and then back to D if left alone or gear change is coming up.
10. Final install pics driver's view
Wiring
- the paddles are a simple switch that completes a continuity circuit (with the ground)
- paddle 1 upshift (pin1 = ground, pin 2 = run to unified meter pin location 6)
- paddle 2 downshift (pin1 = ground, pin 2 = run to unified meter pin location 26)
Overall schematic of paddles and how they wire up next to the shifter inputs
You will be wiring up to the unified meter box (white box above radio unit) the plug you are after has 40 pins (the bigger one) and the pins are read from the back of the plug.
pin 6 = paddle shift up
pin 5 = paddle shift down
The paddles also need to be grounded, I joined their cables together and hooked up the paddles to the bolt under the steering column which is the vehicles negative. So whenever you press the paddles it completes a circuit with the ground giving the unified meter box a negative signal on pin 5 or 6 to signal an upshift or downshift.
As a heads up you will see that pin 5 and pin 25 are filled and 6 and 26 are right next to them. Pin 5 = shifter up, 25 = shifter down so that makes sense. That was my backup in case my car was not wired, just hook the paddles up to the shifter pins and then the paddles would only work when the shifter was in DS mode.
Function - oem as designed
- in D: push paddles up or down and M will display on cluster with the gear its in for a few seconds, it will then go back into D mode if the paddles are left alone. Paddles will allow up or downshift in D mode as a form of override.
- in DS: you can use paddles or gear shifter to up or downshift as before, it will not go into DS mode by itself if paddles are left alone.
Anyone else interested in this setup and a proper DIY ? It took a few hours total.
Cheers
-Ciprian