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OEM Wireless charger

Meesters

Go Kart Newbie
Location
Belgium
Car(s)
Golf 7.5 Variant
Yes, we have things to worry about, haha. I think easiest thing for me will be make a quick harness with only 4 of the 6 pins to see if things play nice.

1 - power
2 - convenience/comfort can low
- On 5NA charger this pin connects to MIB and external amp (if installed)
3 - convenience/comfort can high
- On 5NA charger this is the LIN bus wire to the MIB
4 - ground

The other 2 pins...
5 - LIN bus to the external antenna amp (which I do have and plan to install)
- On 5NA charger this goes to KESSY Module/BCM.
6 - Goes to the KESSY Module and BCM
- This is the wire that is in Pin 5 of the 5NA charger



Assuming this all works, if you are going 5NA to 3P0...
  1. Move wire from Pin 5 to Pin 6
  2. Remove the wire from Pin 2, it is no longer needed.
    1. Unless you have the external amp, in that case move wire from Pin 2 to Pin 5 and also pull the wire from infotainment unit.
  3. Add comfort/convenience can wiring
    1. Easiest, I think, is take tap this from HVAC Module (but do as you wish, of course)
    2. HVAC 20 Pin connector Pin 5 - high
    3. HVAC 20 Pin connector Pin 6 - low.
  4. Add module to your gateway installation list.
So today 3P0 charger came in and I connected it like explained. Sadly enough I couldn't get it to work, not on the bench and not in the car.. It is not recognised by my GW's. Like I hoped, it was recognised automatically, but it didn't. So I added HEX DE manually, but sadly without succes.

I tried wiring the following, starting with:

Pin 1, 12V
Pin 2, Can Convenience Low
Pin 3, Can Convenience High
Pin 4, Ground

Later on, I added Pin 6, to T73a/14, both on bench, or in car, didn't make a difference..

Even later on I connected Pin 5 to MIB, just because I hoped it would do something, since I have no MIB connected to the bench.

I also did try to connect it to different types of Can busses, but I already knew that it belongs most likely to the convenience/comfort bus.

So unfortunately no succes for the moment, hopefully you get it to work and you know what is the problem. And if you already have some advice or comments, let me know and I will try..
 

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Meesters

Go Kart Newbie
Location
Belgium
Car(s)
Golf 7.5 Variant
When my 3P0 arrives, and is wired/confirmed to work I expect the two of you will have settled on a design and produced something I can 3D print.
Well, no design with actual dimensions, but I made this today, since I was already tinkering with the wirelesscharger. I tested it, and the air flows out very nicely through the venting hole, you might consider this design (3D printed or not) if you ever might install the 5CG charger.
 

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Meesters

Go Kart Newbie
Location
Belgium
Car(s)
Golf 7.5 Variant
@Meesters That's bad news for now. I'm surprised the gateway didn't notice "something" on the can bus. I'm assuming your 7.5 has 3Q0 gateway. What is your software version?
Yes I have a 3Q0 gateway, sw version 3Q0907530L

@Cuzoe

Update, Car, sw number, 3Q0907530L version 5323
Bench, sw number, 3Q0907530AR version 5502
 
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Meesters

Go Kart Newbie
Location
Belgium
Car(s)
Golf 7.5 Variant
If anyone has any information how to connect or coding the 3P0035502 (A) wireless charger, for most recent VW Passat 9 and Golf 8.5, would be happy to hear

Thanks in advance.
 

Cuzoe

Autocross Champion
Location
Los Angeles
Passat B9 diagram is what I used for the wiring "instructions" in my prior post. I couldn't find any B9 or 8.5 scans.

This 2024 Audi RS3 scan has module DE...
https://forums.ross-tech.com/index.php?threads/44453/

Part number is 4N0035502B looking that up do on eBay that have the connector attached. The 6-pin and the antenna connector are in a different position relative to the 3PO. But 1-4 are populated, and based on the colors look like power, can, can, ground.

Of course it has the 5WA gateway. In my quick googling I can't find anything though I seem to remember reading that these gateways are a different speed on the can bus. Anybody got any input on that?
 

Jachas

Go Kart Champion
Location
PL
Car(s)
A3 8V
In my quick googling I can't find anything though I seem to remember reading that these gateways are a different speed on the can bus. Anybody got any input on that?
5WA gateway is completely different story compared to 3Q0/5Q0. 5WA have Ethernet gateway in it and some CANs are FD (flexible data). According to SSP680 (A3 8Y) . Powertrain, Diagnose, Driver assistant and chassis CANs are FD, rest like Infotaiment, Hybrid, Comfort, Gearbox are regular CAN.

And 5WA gateway is from revised MQB platform, named MQB37 (Golf8 and siblings like A3 8V, leon 4gen, formentor, octavia 4gen, Caddy 5gen). And in last month or two, MQB37 was revised and named MQBevo (All aftermentioned cars after facelift + Passat b9/superb 4 and Tiguan 3/Kodiaq). Gateway was changed from 5WA to 5QS


So it's something like connecting golf 7 stuff to golf 6 (PQ platform) I supose
 

Meesters

Go Kart Newbie
Location
Belgium
Car(s)
Golf 7.5 Variant
Passat B9 diagram is what I used for the wiring "instructions" in my prior post. I couldn't find any B9 or 8.5 scans.

This 2024 Audi RS3 scan has module DE...
https://forums.ross-tech.com/index.php?threads/44453/

Part number is 4N0035502B looking that up do on eBay that have the connector attached. The 6-pin and the antenna connector are in a different position relative to the 3PO. But 1-4 are populated, and based on the colors look like power, can, can, ground.

Of course it has the 5WA gateway. In my quick googling I can't find anything though I seem to remember reading that these gateways are a different speed on the can bus. Anybody got any input on that?
Good research work I must say, however sadly enough it seems mqb gateway probably can't talk to HEX DE I suppose. Where you got wiring diagram, Erwin?
5WA gateway is completely different story compared to 3Q0/5Q0. 5WA have Ethernet gateway in it and some CANs are FD (flexible data). According to SSP680 (A3 8Y) . Powertrain, Diagnose, Driver assistant and chassis CANs are FD, rest like Infotaiment, Hybrid, Comfort, Gearbox are regular CAN.

And 5WA gateway is from revised MQB platform, named MQB37 (Golf8 and siblings like A3 8V, leon 4gen, formentor, octavia 4gen, Caddy 5gen). And in last month or two, MQB37 was revised and named MQBevo (All aftermentioned cars after facelift + Passat b9/superb 4 and Tiguan 3/Kodiaq). Gateway was changed from 5WA to 5QS


So it's something like connecting golf 7 stuff to golf 6 (PQ platform) I supose
Wauw, what knowledge, how you know all that stuff if I may ask? I think the charger is not connected through ethernet, because based on standards, ethernet uses minimum 2 pairs of wires, and as Cuzoe mentioned there are only 4 wires connected at all.

Do you think 5WA gateway could be retrofitted on golf 7, using only regular CAN? I'm a real noob, sorry for asking 😄
 

Jachas

Go Kart Champion
Location
PL
Car(s)
A3 8V
I think the charger is not connected through ethernet, because based on standards, ethernet uses minimum 2 pairs of wires, and as Cuzoe mentioned there are only 4 wires connected at all.
The "regular" Ethernet in the most popular form uses 8pins in RJ-45 connector with 4 data wires, but in VW's is used "Automotive Ethernet" (descibed in SSP680) is only 2 wires for data transfer.

In many applications, Ethernet replaced MOST optical data bus (MIB3 amps are using Ethernet instead of MOST, same with MIB to cluster for "maps on cluster" feature)


Do you think 5WA gateway could be retrofitted on golf 7, using only regular CAN? I'm a real noob, sorry for asking 😄
I don't know if someone tried, but probably it's gonna be impossible as all the topology of car network changed (for example, Immo was moved from cluster to BCM on MQB37 and MQBevo, Kessy introduced 4 new, optional anntenas on every corner to fight with car theft using "suitcase" method, keys have motion sensor to deactivate it kessy function to save battery and futher protect from suitcase method disabling engine start if key is not moving) It may be possible to retrofit, but it would require more stuff to swap and/or custom flashing of some modules

Wauw, what knowledge, how you know all that stuff if I may ask?
80% of knowledge I quote/use is in SSP's , 20% is everyday work on these cars and TPI's/TSB's ;)
 

Cuzoe

Autocross Champion
Location
Los Angeles
Although we only have one data point so far my thinking was/is that maybe we get lucky with module DE. The 2Q0 blind spot radars are still used with 5WA... From memory here aren't those on can bus extended?

@Jachas I would assume that means MQB-Evo still has can bus extended. Is there now a dedicated driver assistant bus using can-FD?

And is my travel weary mind correct that convenience/comfort can are different names for the same thing on MQB? I guess I would need to check the gateway pin out.
 

Meesters

Go Kart Newbie
Location
Belgium
Car(s)
Golf 7.5 Variant
80% of knowledge I quote/use is in SSP's , 20% is everyday work on these cars and TPI's/TSB's ;)
A, right, so you do work in the automotive industry 👍 Good to know 😉

Although we only have one data point so far my thinking was/is that maybe we get lucky with module DE. The 2Q0 blind spot radars are still used with 5WA... From memory here aren't those on can bus extended?
This morning I tried literally all CAN-BUS's on bench, also I interchanged LOW and HIGH for every bus. So far,, nothing.

@Cuzoe
Hopefully you can differentiate yourself and get it working. For now I think I'll give up unless someone else comes up with a brilliant comment today 😊.

Have a nice weekend.
 
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