POLO 6C PDC PARKING SENSOR RETROFIT

[giannis20vt]

i have found useful information in this thread

viewtopic.php?t=72859&start=30

[giannis20vt]

I'm getting ready to install the 8K PDC
The wiring I got from aliexpress is for GOLF 7 and it puts the brain in the front (on the Polo it's at the back)
I find it easier to install the brain forward rather than modify the wiring.
The PDC


I'm thinking of possible places.
The 1st point is on the lower left, next to the hood opening lever.





2nd point inside the dashboard, left or right of the steering wheel.





I think the 2nd point is quite convenient, I think I can support the PDC with screws on its plastic nerves from the inside of the dashboard.



I am still thinking about it.

[ciclo]

The 2nd place is fine in case it is easy to hold the PDC unit properly on those plastic ribs/nerves with the tools you have available.

For the 1st one I recommend not drilling, the steel plate in that area is hard enough to need high quality drill bits. Maybe Velcro or double sided tape, both 'high quality' and wide operational temperature range, would be better to hold the PDC unit in this area.

Either of the two places is fine, I would choose the 2nd. The trim where the hood release lever is located is usually removed, and the clearer things are there the easier it is to remove that trim.

[giannis20vt]

The 2nd place is fine in case it is easy to hold the PDC unit properly on those plastic ribs/nerves with the tools you have available.

For the 1st one I recommend not drilling, the steel plate in that area is hard enough to need high quality drill bits. Maybe Velcro or double sided tape, both 'high quality' and wide operational temperature range, would be better to hold the PDC unit in this area.

Either of the two places is fine, I would choose the 2nd. The trim where the hood release lever is located is usually removed, and the clearer things are there the easier it is to remove that trim.

The 1st option, that of the hood release lever, offers easier access to the PDC when needed, but it is a little more difficult to manage the cables due to space, and of course it is also what you say about its retention-fixation.
The 2nd option is more difficult to access, since the plastics of the steering column must be removed (3 screws), but it offers enough space for cables, etc.

I have to decide...

[ciclo]

I think the wiring harness designed for the Golf will be better suited to the second area you have chosen.

Once the PDC unit is installed and the system is running, it is strange that you have to remove it again. The location of the PDC mini speaker is also favorable there.

Removing the three screws from the steering column covers can be done sitting in the driver's seat, however to remove the trim from the hood lever you have to bend over (bend/break your spine...).
Surprisingly or maybe not, this is a very common complaint from those who have worked with wires in that 6R/6C area...

May the gods of Olympus accompany you in your wise decision.

[giannis20vt]

I think the wiring harness designed for the Golf will be better suited to the second area you have chosen.

Once the PDC unit is installed and the system is running, it is strange that you have to remove it again. The location of the PDC mini speaker is also favorable there.

Removing the three screws from the steering column covers can be done sitting in the driver's seat, however to remove the trim from the hood lever you have to bend over (bend/break your spine...).
Surprisingly or maybe not, this is a very common complaint from those who have worked with wires in that 6R/6C area...

May the gods of Olympus accompany you in your wise decision.

Thanks for your answer and your comments.

The decision was made, you helped a little, position No2. Surely the position is more convenient for the cables and there is nothing to disturb.
It seemed easy but it wasn't. The holes in the plastic were very difficult to make, because of the part, there is no room for a normal drill to go in to make them.
So I ended up with a patent tool, I'm not proud of the appearance, but it worked fine and that's what matters.



So the holes were opened.



I put foam adhesive on the PDC where it would come into contact with the car parts to keep it from rattling.

It went into place, the screws were screwed in, and that had a degree of difficulty.



The module went into place. The photo is from the side of the door inwards.

[ciclo]

Very well done. There is even room for PDC wiring, and to be able to work on the relays if needed.

[giannis20vt]

Can bus connection

The PDC needs to be connected to the CanBus car system
According to VW for Polo 6C the connection is:



This is to BCM, T73C connector, Pins 44 and 45



To this specific canbus connection there are some others modules of cource.



The solutions for the canbus connection are:
1.Directly to BCM.
2.From the Power steering control unit
3.From the ABS unit.

I chose to make the connection from the power steering unit.
It was the closest and relatively convenient point.



I made the connection to pins 1 and 2 from the T3 plug.
I also used a 2pin plug because I haven't installed all the wiring yet, so it's like waiting for a connection.




That's it.

This is what I have done so far.

I found out that the rear sensor wiring for the GOLF ends up on the left side of the bumper, but on the Polo it should end up about in the center. So it looks like I have to slightly modify the rear wiring of the sensors.

[ciclo]

Good way.

[giannis20vt]

Yesterday i modified the rear wiring. I undid the fabric tape, i modified the wires and i used the same tape for covering the modified wiring.
I wonder what kind of fabric tape VW uses for the wiring intended for external parts of the car.
The wiring i bought was covered with fabric tape, but is was different from the "clasic" fabric tape. Is was more solid but not plastic.

[ciclo]

I'm not an expert, but we all know that there are a myriad of cloth tape models used depending on the manufacturer's requirements. It is not possible to determine exactly which model of cloth tape is used for which location on the vehicle, each brand has its own requirements. There are even different types of cloth tape within the same brand for the same location on different models, also, the way in which the cloth tape is applied.

The little elves do the testing and then manufacture the wiring according to operating conditions and manufacturer requirements.

The wheel arch (ABS system) and engine areas are the most sensitive, which is why plastic/rubber tube covering is used instead of cloth tape, even in other not so obvious places on the vehicle.

As far as retrofitting is concerned, currently, not before (last two decades), even 'white label' cloth tape for automotive use is good enough to last a long time under normal operating conditions. Obviously, the weather conditions must be taken into account when protecting the wiring harnesses, an arctic or desert climate is not the same as a mediterranean climate.

The correct protection and 'installation' of the wiring harness in a vehicle is essential.

[giannis20vt]

Of course there are different tapes, even from the same manufacturer.
Until now I know the classic fabric tape, with which I have done all the wiring up to now.
I notice that the wiring in the engine area has different types of tapes, but until now I didn't pay much attention.
The photo I posted is of the wiring kit I got from a supplier. In the kit there were 4 wirings, the two are for the sensors on the bumpers, and they were done with the tape on the right of the photo. The other 2 that are for the interior of the car, have been made with the film on the left of the photo, which is also the classic film we are talking about. That's why its use surprised me.

[amer6R]

coroplast oem

[ciclo]

Yes, Coroplast is a very good cloth/fabric tape, I used an indoor model outside over a decade ago and it is still in perfect condition, in fact I still use it for small sections in outside areas due to this experience.

[giannis20vt]

ΟΚ, thank you both for the info.
Well Coloplast is the brand name. I will search for it.