Quote:
Originally Posted by Mr Kleen
The 135i DCT switches are completely different from the M3 DCT switches. Many people have installed M3 DCT switches and paddles in an automatic 135i. I'm hoping this DIY will enable M3 switches with 135i DCT.
The 135i DCT is the same transmission as the 135is DCT and 335is DCT, but has different paddles, switches and console gear selector from the M3 DCT.
Someone correct me if I'm wrong. (It's the internet, of course someone will correct me LOL!)
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I was pretty sure that the 335is has M3 paddles, then assuming that all cars equipped with DCT trans had DCT paddles. Being wrong on that. the diagram I wrote up above still should work for any paddle to DCT paddle swap. Just make sure the signal going to your MF switches, still go to it from the DCT you replace it with. And if pin 2 goes to ground. Make sure you provide a ground for pin 2 on your DCT harness. Simple as that.