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iichel wrote: Mon Mar 08, 2021 1:34 pm The 311 relay, it's the 646 relay in the beige relay holder.

will I take it off and put on that apparatus? I'll connect the two lines and in a fuse box sb59, sb39 will be empty

https://imguh.com/image/TDlnj

It's a bit difficult to explain, but I'll try.

One of the modifications that need to be done for the BCM Max is to lead the wires from the J331 relay to the BCM.
- Disconnect battery minus
- Remove the J331 relay
- Bridge the two large terminals with a piece of substantial metal
- Remove SB39b and SB59b wires, cut off the connectors, extend the wires and connect the wires to resp T73a/63 and T73b/68
- Make a new wire from T73a/a to SB59b and T73b/2 to SB39a
- Add a wire from T73a/62 to SB34b

Like this, courtesy of ciclo for the image.

Im wondering how do you even reach the relay box without taking the dash. Is there a "secret" access ?

yes, from the side of the dash or take off the steering column trim

iichel wrote: Mon Mar 08, 2021 1:56 pm It's a bit difficult to explain...
...SB34b

Like this, courtesy of ciclo for the image.

https://i.imgur.com/n4g7gO0.jpg

Enchanting image from the origins of creation.

A cooler one:

...by ciclo...

umit53 wrote: Mon Mar 08, 2021 1:02 pm which is j331? And how do I do that ....
https://imguh.com/image/TDS8N

1- In the original electrical installations, the J331 relay is in charge of supplying energy to the halogen headlights (Low Beam).

2- When installing an electric bridge like this ...


(I think I have all the possible images from other installations, depending on a huge number of factors... this is dedicated to you and your 6R ).
... we send +30 power signals to fuses 39 and 59 directly without any dependency.
Eureka! we already have +30 at the output of the two fuses, and we have eliminated any type of dependency.

3- From the fuses output, we send +30 to pins BCM T73a/63 and T73b/68.
Eureka! the BCM Max is now ready to control the low beams.

4- From the T73/2 terminals we send the energy to the headlights under the control of the BCM Max, precisely through the wires that were originally the output of the fuses.

5- We add a T73a/62 signal-wire to the wire that feeds the high beam, so that the low beams stay on when we activate the high beams.

Easier impossible.

amer6R wrote: Mon Mar 08, 2021 3:47 pm Im wondering how do you even reach the relay box without taking the dash. Is there a "secret" access ?

From both sides, left and right, and also from below ... bend over and look.
However I am with you, we should be permanently angry, protesting and complaining to VW for any small minor detail ...