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golfprorich
Newbie


Joined: 24 Apr 2017
Posts: 37



PostPosted: Fri Jan 03, 2020 6:16 pm    Post subject: My Cayenne 955 Paddle Conversion Reply with quote

Well I'd seen the conversion done on Boxsters, 996s, 997s etc and thought it would be a nice for the Cayenne and relatively simple. However..... what

Unlike the others the Tip buttons do not sit in the steering wheel itself but are part of the airbag unit, and this includes the wiring. It is not the same, simple two wire system the other cars use.

Not to be put off as I had already bought the paddles I arranged a quick trip to DeMort's house armed with airbag unit and some cider Laughing He had advised me that the airbag unit uses canbus so he set about with his ohmmeter to work out how the buttons send the signal and through what pins. There are resistors on the ribbon cable so there was no other option than to solder the paddle wires direct to the button terminals.....which are tiny!

On the way back from DeMort's I stopped in at the in-laws as I have no soldering equipment and the father-in-law managed to solder some lengths of wire to each terminal. As to not cramp the wiring I used the right side for the upshift and the left side for the downshift. Unfortunately one of the solder joints let go on the way home so back I went!

The next challenge was to get the Tip button circuit boards, new wiring and the backplate all back together without breaking the solder joint. A bit of dremmeling and a couple of holes for the wires to run through and it went back ok. I had to cut off the button for the steering wheel lights which is fine as I never want to turn them off anyway!

I then taped the wiring safe and soldered some wires which had a terminal as I wanted the paddle wiring to not be hard wired to enable future airbag or steering wheel removal.

It's not pretty but does what I needed it to do..



I repeated for the other side and then did a test in the car to make sure the wiring actually worked! Connected everything up but didn't push home the airbag and left the paddle wires out the side. Started the car and put it in D. Touched the end of the upshift wires together and it moved to M2, result! Touched the downshift wires together and it changed to M1. Felt this was the turning point now so it was on to mounting the paddles!

Firstly marking it out then attacking it with a dremel and multi tool! There's quite a bit of metal that needs removing, some carbide tipped bits were very useful!





Where the paddles mount is quite curved and I wasn't able to get a flush fit all round because the paddles are flat. So I smeared at little bit of silicon sealant to take up where the gaps are, which is only about a mm on part of each side. Not ideal but you can't see it anyway from the driver's seat!!

Paddles fitted with wiring run through..



Now onto putting it all back together, my biggest fear was damaging the new wiring whilst reseating the airbag unit. I think I closed my eyes whilst giving it that final shove home Surprised However nothing was damaged and the paddles worked perfectly Thumb

How it looks..



Nice and subtle, I had the thought of painting the paddles button silver but glad I didn't.
Went out for a decent drive this afternoon and it really is miles better than the buttons or using the stick.
It's not been an expensive mod at all but has taken a lot longer than I would've expected, mainly because of not wanting to break anything. Even the grinding out of the steering wheel you have to be so careful because if you cut it too far that's your wheel knackered what

What with the dash LCD replaced and now this the driver's seat is much more pleasant place to be. Although it was grief I'm glad I did it though and big thanks to DeMort for his invaluable help with it all thumbsup [/img]
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Cayenne S 4.5 V8
 
  
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7848
Location: Brighton


PostPosted: Mon Jan 06, 2020 8:34 pm    Post subject: Reply with quote

All i did was figure out where to attach the wires so i played a very small part to be fair .

This is a very rare mod on these cars as it's not that easy to know how to attach the paddle wiring unlike sports cars .. post here with any questions .. it can be done so well worth considering it as a mod to do if you prefer manual shifting ... if not .. it just looks good !
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



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MarkGolf
Imola


Joined: 13 Nov 2012
Posts: 815
Location: S.London


PostPosted: Tue Jan 07, 2020 10:21 am    Post subject: Reply with quote

Very nicely done!!

I may attempt this at some point, great work!

What does @demort drink? I owe him!
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Current fleet
1991 964 Carrera
2005 997 Carrera S
2008 957 Cayenne GTS
2003 Boxster 2.7
1994 Eunos Roadster S Special Turbo 270bhp!
1991 Mercedes 500SL
1979 Mercedes 280e
1995 VW Golf VR6 3.0
 
  
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7848
Location: Brighton


PostPosted: Tue Jan 07, 2020 8:30 pm    Post subject: Reply with quote

MarkGolf wrote:
Very nicely done!!

I may attempt this at some point, great work!

What does @demort drink? I owe him!


Lol .. i drink strongbow but you owe me nothing .. it's been a pleasure to add my humble opinions to your work effort ... PDCC .. we both learned on that one !
_________________
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

7pm - 9pm

Indy Mechanic .
 
  
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golfprorich
Newbie


Joined: 24 Apr 2017
Posts: 37



PostPosted: Tue Jan 07, 2020 8:35 pm    Post subject: Reply with quote

MarkGolf wrote:
Very nicely done!!

I may attempt this at some point, great work!

What does @demort drink? I owe him!


Thanks mate, it was a bit griefy but worth it for sure!!

deMort wrote:
All i did was figure out where to attach the wires so i played a very small part to be fair .

This is a very rare mod on these cars as it's not that easy to know how to attach the paddle wiring unlike sports cars .. post here with any questions .. it can be done so well worth considering it as a mod to do if you prefer manual shifting ... if not .. it just looks good !


You set the ball rolling and gave me the confidence to see it through Thumb
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