Retrofit washer fluid level indicator

rogerius

Newbie
May 18, 2005
9
0
Hi. In my case, pin 10 was occupied, so I connected to it. Pin 28 was empty. I still had cables with pins in the garage that were left over from installing side assist. These are the narrower pins, i.e. either 000979009E or 000979025E. If think this first.

@Antera do you know what number this is? these are the same as for the gateway module. Because that's what I have left.
if I connect to pin 28, and insted of pin 10 i connect to ground, will it be ok? Is this connection fused or not needed?
 

Attachments

  • washer retro.jpg
    washer retro.jpg
    44.3 KB · Views: 83

spezwend

Active Member
Jun 23, 2023
68
35
Confirmed. Its totally the same on Formentor. I did this retrofit and it works!
What pins for the wire did you use on the BCM T46B connector?

edit:

Okay, found it, MQS female pins. Looks like, there is a slight difference on sensor GND (10 or 19) wires, but SIG wire is always pin 28. I found T-Roc 2017 and Golf 8 2020 diagrams.
 

Attachments

  • Golf8.jpg
    Golf8.jpg
    121.8 KB · Views: 68
  • T-Roc.jpg
    T-Roc.jpg
    134.4 KB · Views: 67
Last edited:
  • Like
Reactions: KoNG

KoNG

Active Member
Jul 27, 2016
509
107
London
Good morning installed the blindspot on my T-roc 2018 I took the two used radars of a Tcross and I didn't need to load any parameters and no dataset they self-calibrated and everything works correctly
How is this related to washer fluid indicator? Or Seat at all?
 
  • Like
Reactions: Antera
Jul 25, 2022
9
0
No fuse. Direct connect to 28 and 10. Nothing else. Pin 10 is ground, no car gro

Hi. Today I installed the indication of the windshield washer fluid. The work is not difficult.

What we need:
1. Plug 1J0973202
2. Two 2-meter cables (or one double)
3. automotive cloth tape (for better look)
4. Two connectors for T46B plug
5. Something to coding (i have obd11)
6. Our tanks already have built-in fluid level electrodes.

We have to disconnect the battery, remove the left wheel, unscrew the front part of the wheel arch, remove the battery (it interferes with pulling the cable), unscrew the plastic under the steering wheel and the left part from the lever to open the hood. We remove the middle plug (B) from the BCM (t46b), unplug it, connect the cable to pins 10 and 28, pull it through the bulkhead to the engine compartment, lead it somehow to the washer tank (I led it through the top and went down behind the lamp just like the original washer harness), connect the plug and we code:

1. 09 central electrics
2. adaptations
3. hw_verbau
4. change insufficient washer fluid from to installed



I'm still waiting for my plug, so don't laugh at the connectors on the tank :)
Hi. Witek, today before I’ve connected plug with two wires to the tank ( full of washer fluid) I’ve verified with ohmmeter two pins… and there was no electric circuit between them. Is it normal? Or maybe my washer fluid tank is faulty? I was pretty sure that washer fluid close the circuit and when the level of fluid is below the pins, circuit is open, so electric module light the signal on dashboard. Currently I want to finish this job before Saturday and connect the pins inside of the car, but I doubt if it will work?
 
Jul 25, 2022
9
0
Connect them en code it and you will see
I think I have no choice ;).The last question: after disconnect battery should I adapt comfort module or something else? ( in my old Leon MK1 I always had to adapt electric windows after disconnect battery. Thanks in advance for your answer.
 
Genuine SEAT Parts and Accessories.