So I decided to purchase the Westfalia detachable tow bar this week and set about fitting it. I bought the towbar and dedicated electrics from PF Jones. I've fitted it to a 2017 T6 and taken a few photos which may help someone. Not a bad job, but I'm fortunate to have ramps at our garage. It's a job that could be done on your driveway but you would need to roll around the floor which would take a lot longer to do.
To summarise I did the job in the following order.
1. Remove bumper, rear reinforcer and fit relevant trim piece and fixings.
2. Remove spare wheel and under trays including wheel well trim.
3. Fit and torque tow bar bolts.
4. Disconnect battery, run cable from battery tray through cutout in corner battery housing and route cable through same route as brake pipes, around adblue tank, down left hand chassis rail to tow bar bracket. Securing with cable ties where possible.
5. Terminate the relevant wiring to loom as I didn't need to connect anything under passenger seat.
6. Connect tow bar wiring to socket and refit under trays and spare wheel.
7. Locate a bulkhead grommet to upper drivers side of master cylinder (this is a rectangular grommet with multiple choices of holes) which takes the canbus wiring just above body module. 8. I unplugged both sockets from body module and connected orange and brown and orange and green wires as per instruction. There are a few twisted orange wires paired up so pay attention to the trace colour on orange canbus wires. These connect into the white multi plug on BCM. I then connected the black and red wire from tow bar loom to the black and red wire on black multi plug. There are yellow coloured rings around the cable to confirm the right connection.
9. Tidy up cables, refit multi plugs to BCM carefully, no force required or you could damage pins and refit any dash trims as necessary.
That's pretty much it, not too difficult just be methodical.
10. Connect tow bar wiring to battery terminals and reconnect battery.
A simple lighting board to check all lights work and I'll follow up with VCDS coding to finalise fitting to have any notification on dash etc.
To summarise I did the job in the following order.
1. Remove bumper, rear reinforcer and fit relevant trim piece and fixings.
2. Remove spare wheel and under trays including wheel well trim.
3. Fit and torque tow bar bolts.
4. Disconnect battery, run cable from battery tray through cutout in corner battery housing and route cable through same route as brake pipes, around adblue tank, down left hand chassis rail to tow bar bracket. Securing with cable ties where possible.
5. Terminate the relevant wiring to loom as I didn't need to connect anything under passenger seat.
6. Connect tow bar wiring to socket and refit under trays and spare wheel.
7. Locate a bulkhead grommet to upper drivers side of master cylinder (this is a rectangular grommet with multiple choices of holes) which takes the canbus wiring just above body module. 8. I unplugged both sockets from body module and connected orange and brown and orange and green wires as per instruction. There are a few twisted orange wires paired up so pay attention to the trace colour on orange canbus wires. These connect into the white multi plug on BCM. I then connected the black and red wire from tow bar loom to the black and red wire on black multi plug. There are yellow coloured rings around the cable to confirm the right connection.
9. Tidy up cables, refit multi plugs to BCM carefully, no force required or you could damage pins and refit any dash trims as necessary.
That's pretty much it, not too difficult just be methodical.
10. Connect tow bar wiring to battery terminals and reconnect battery.
A simple lighting board to check all lights work and I'll follow up with VCDS coding to finalise fitting to have any notification on dash etc.