IMPORTANT: This is not just Plug and Play. Travel assist not necessary to have installed, but recommended to. Automatic lane change possible, but Camera software needs to be up-to-date and correct part number. Also need to have parking sensor frond and back.
As promised, following I will give instruction of installation, costs and
coding. This is for Sportstourer, but hatchback is almost the same.
Install:
1. Remove the rear bumper and interior panel right side:
-take out rear light, screws are behind cover
-remove all 8 screws from wheel arch left and right
-Remove underside screws (6x) and 2x plastic clip
-Remove 2x screw under rear light
-Remove panel by undoing screws (or push is slightly aside to get between it)
-remove bumper and attach radars and cable to the chassis, then run the cable through the rubber grommet.
2. Run the cable from right rear of car to right front:
-pull the cable with a cable puller underneath all the interior panels or remove them.
3. Doorpanel removal and cable installation:
-Remove door panel by taking off the handels and switch, then remove 2 screw and take it off.
-Remove speaker and take the cable set for the light and pull it through the rubber grommets and insert the wires in the door connector. Lin wire (Red wire in the lamp) goes in Pin 13 of connector. Ground in pin 14.
-Swap all components over to the new door panels
4. Cable routing to left side and installation:
-Take the ground wire and the 2 wires for the lamp of the right side and attach these. (Make sure you match the LIN wire and Ground wire of the lamp accordingly in the door connector)
-Take the rest (left side lamp wires, CAN high and low, Fuse wire) to the left side of the car.
-route the cables how you like, but do check that you have enough cable left to insert it and tuck it away properly. (I routed mine underneath the carpet, across the transmission tunnel.)
-once it sits properly, plug in the wires for the lamp in the door connector (make sure the wire from the radar Pin 6 (LIN wire) goes in Pin 13 door connector)
-use a wire connector and take the can High and Can low and attach these to the existing wire on the cambus gateway. If you use the gateway directly, it will be Can High Pin 7 (Gray cable) and Can Low Pin 6 (Orange/Brown).
-you can also use the black connector at the hood release, this also has the Can high and Can Low wires, but in the connector they are on Pin 12 and Pin 13 (Pin 12 Can High, Pin 13 Can Low)
-Side Assist CAN is an extension to the existing CAN
network, so make sure the connection to the wires is good. You can use an item where you tap into the wire, or just strip the wire of insulation and wrap the other wire around it and then solder it together.
-After this is all done, pull out the fuse box left of steering column and remove the blocking pin, then insert Fuse wire. This part can be tricky, but try and wriggle around the box so you can see the back side and have enough space to insert the wire.
5.
Coding and CP removal:
-You have now installed all the components, now you need to do some
coding and remove the Component Protection.
Coding can be done with dongle from Kufatec, or using
OBD11. CP removal needs to be done with ODIS or a tool that gives access to VW servers.
coding is as follows: (credit to Niky89 on another forum)
1) GATEWAY
Register 3C modules
2) Control unit: 03 Brakes (ABS)
Long
coding:
Byte 18 activate bit 3 (already ON in my car)
Byte 30 activate bit 4 (already ON in my car)
Adaptations:
-Delay management:
Rear cross traffic assistant: Not activated --> Activated
3) Control unit: 17 Dashboard
Long
coding:
Lane change assistance: No --> Yes
Lane change assistant, BAP distance: No --> YES
Lane retention assistant, BAP distance: No --> YES
Lane_change_assistent: no —> yes
Blind_spot_detection: no —> yes
4) Control unit: 5F Multimedia
Adaptations:
-Vehicle function list BAP:
SWA_0x1A: Not activated --> Activated
SWA_0x1A_msg_bus: Not activated --> Terminal 15
-Vehicle menu operation:
menu_display_lane_assistant: Not activated --> Activated
menu_display_lane_assistant_over_threshold_high: Not activated --> Activated
5) Control unit: A5 Driver Assistance
Long
coding:
SWA: Not_coded --> Coded
blind_spot_detection: Not_coded --> Coded
HC_Mob_line: Not_coded —> Coded (this is for automatic lane change)
HC_var(this is for automatic lane change)
6) Control unit: 19 Gateway
Long
coding:
PaCo_Rear_Cross_Traffic_Alest: not installed --> installed
7) Control unit: 75 Telematics
Adaptations:
-Vehicle function list BAP:
Lane change assistance: Not activated --> Activated
SWA_0x1A: Not activated —> activ
8) Control Unit: 44 steering assistance
Adaptions:
Qfk_ma_function: Not_active —> Active (this is for automatic lane change)
9) Control Unit: 13 ACC
Long
Coding:
Lane_change_support: not activated —> activated
After the
coding, Get the CP removed.
Dealer can do this, but won’t because they don’t like, otherwise find someone who has equipment.
Finally, the cost:
740€ - Doorpanels (Bought via
Dealer)
660€ - Kufatec set (Radars, Bracket, Cables,
coding dongle)
110€ -
OBD11
75€ - CP removal
5€ - Zipties, connector and tape
——— total
1590€ (this can very depending on country and shipping cost)
If you let someone do this for you, expect more than 2000€ for this retrofit.
Last but not least, I made schematic which shows which wires go where, and component numbers. Kufatec set I bought: (includes installation
https://kufatec.com/en/lane-change-assistant-incl.-rear-traffic-allert-for-seat-leon-kl/45285
View attachment 43366
For my car, the left side already had the cable in the door for the light, but the pins were as original, unlike Kufatec set where the LIN wire left lamp is supposed to go into Pin 14 of door connector. In my case however Wire 14 had to be placed into Pin 13 of door connector.
here an foto of the Kufatec set, but you can also buy components yourself and make your own cables, whatever you find easier and more fun.
View attachment 43367
And as last, a photo of original Side assist lamp and cable in left doorpanel.
View attachment 43368
I forgot to make photos of installation in car, but it’s mostly straightforward and if you are an mechanic or have lots of experience disassembling interior than this shouldn’t be hard. Expect to be busy between 6 to 8 hours max.
After everything is done, made a calibration test drive (goes automatically) and it correctly detects overtaking traffic or traffic driving beside you. Have not yet experienced an alert when driving out a parking spot or when opening door when traffic is coming, but this will also work.
if you have any questions, send me a PM.
