One of my favorite features of modern cars is the one touch lane change turn signals, and after years of driving in LA (I'm currently in TN for work) I got used to it for snappy lane changes.
So I went on a search to add it to my 89 325i that I daily. Couldn't find a diy so I took some pictures along the way.
The main thing I wanted to do was wire it only into the switch so I could remove it by only replacing the turn signal switch, no actual harness cutting.
I bought this module from eBay Germany.
Then I removed the steering wheel and turn signal lever.
I used their instructions and the etc, made this wiring chart :
-------------------------E30---------------------------------------Komfortblinker
+12v-----------------Green/Violet-------------------------Red
GND------------------Brown----------------------------------Black
Left Input----------Blue/Red from Relay-----------Orange / Black
Left Output-------Blue/Red to connector--------Orange
Right Input--------Blue/Black From Relay--------Yellow / Black
Right Output-----Blue/Black to connector------Yellow
You have to cut the relay output signals to put the one touch relay in line, which is why I wanted to do all the wiring on something replaceable. The +12v and GND are just splices.
There's also not much space under the steering column cover so I put the splices near the connector to put it closer to the pedals.
(ignore the green/yellow splice, I cut the wrong one and had to rejoin it)
I soldered on all the wires trying to keep them neat and tidy.
After this I added a zip tie by the splices for strain relief.
After that, I just plugged the connector back in the car and put everything back together, and it worked perfectly the first time.
Here's a video from before I put the steering wheel back on.
I think I got the module cheaper, more like 40 euros, but for that much plus some solder and flux and about an hour, it works great.
Hope someone else finds this interesting.
Tim
So I went on a search to add it to my 89 325i that I daily. Couldn't find a diy so I took some pictures along the way.
The main thing I wanted to do was wire it only into the switch so I could remove it by only replacing the turn signal switch, no actual harness cutting.
I bought this module from eBay Germany.
Then I removed the steering wheel and turn signal lever.
I used their instructions and the etc, made this wiring chart :
-------------------------E30---------------------------------------Komfortblinker
+12v-----------------Green/Violet-------------------------Red
GND------------------Brown----------------------------------Black
Left Input----------Blue/Red from Relay-----------Orange / Black
Left Output-------Blue/Red to connector--------Orange
Right Input--------Blue/Black From Relay--------Yellow / Black
Right Output-----Blue/Black to connector------Yellow
You have to cut the relay output signals to put the one touch relay in line, which is why I wanted to do all the wiring on something replaceable. The +12v and GND are just splices.
There's also not much space under the steering column cover so I put the splices near the connector to put it closer to the pedals.
(ignore the green/yellow splice, I cut the wrong one and had to rejoin it)
I soldered on all the wires trying to keep them neat and tidy.
After this I added a zip tie by the splices for strain relief.
After that, I just plugged the connector back in the car and put everything back together, and it worked perfectly the first time.
Here's a video from before I put the steering wheel back on.
I think I got the module cheaper, more like 40 euros, but for that much plus some solder and flux and about an hour, it works great.
Hope someone else finds this interesting.
Tim
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