So I'm going to put some links here, which I can then refer to, as well as anyone else wanting to do this.
I am going to source the Correct Wiring plugs for the BiXe's from a scrappy, or buy the 5 pin and 4 Pin connectors from MB.
In the link is a pic of the back of a Facelift BiXe same as the ones that I have bought, the 4 pin Socket is for the Self Levelling Motor and needs the Wires taking out of the cars existing (square) plug and wiring to these 4, diagram is in the first link below.
The 6 Pin Socket connects straight into the Cars 6 Pin Plug, but needs an Earth wire connecting to the 5 Pin Socket at the bottom of the BiXe Lamp unit then hopefully it all works except for the "Range Adjustment", which is what the other wires in the 5 pin socket do on the BiXe's, more research needed into that.
But looks like the link below will get the BiXe's working just without "Range Adjustment", whatever the hell that is, note that "Range Adjustment" is not the same as "Levelling Motors", there is extra wires to these lamps in the 5 pin plug no mention of what these do in any of the posts in the Encyclopaedia, except "Earth the Brown Wire" ................
EDIT :- Ahhh ok further research suggests "Range Adjustment" means in Plain Engleeeeeesh "Shield Motors"
Pix are clickable
Back of lamp showing all 3 plugs, Four, Five and Six pin:-
6 pin which should plug straight into Car:-
4 Pin which does levelling Motor, and connects to the 4 Wires on the square plug on Car :-
5 pin Brown Wire to Earth, also shows the other Wires which, (alledgedly) remain not connected
I also found this, in blue
below, (which I have edited a little so it makes more sense) !!
It would appear that to make the Shield Motor work, I also need to ground the pin at the other end of the 5 pin plug ...............
The new Facelift BiXe light (assuming you got the correct one, there are two versions and many people make the mistake of getting the one with only two connections) should have 3 connectors. 2 connector is maybe single Xe or Halogen ???????????
Connect the original "headlight" connector from the car end (the 6 pin oval one) to the centre connector on both headlights. The other square connector from the car end is for the auto levelling system and obviously wont' fit into the new light cause the receptacle is oval and not round. Worse case is that you solder wire onto the headlight pins and there are only 4 pins and tap the extended wire onto the wire from the car end connector.
That's it and this will activate the levelling system. It's a vertical connector with 4 pins. They should match up to the 4 wires coming from the car. The levelling connector is the one closest to the side of the car or the 'fatter' end of the headlight.
The remaining 3rd connector at the smaller end of the headlight (under the Fog Bulb) is not used but you will need to ground the first and last pin meaning you will need to attach a wire to the first pin and then to the last pin and have another wire coming out of the last pin grounded somewhere on the car or vice versa just make sure both the first and last pins are grounded. Do this for both sides. Without this ground, you will not be able to use the high beam HID. Basically you should have one short wire connecting the first and last pin and one long wire coming out of the last pin as the final ground wire.
So it would appear that the many who did not do this are happily driving around thinking they have BiXe's when in fact they only have Xe Dips, no Xe Full Beam
4 and 5 pin plugs, and wired terminals to go in them are available from MB :-
Part Numbers ................
2 off A 000 153 08 42 Plug
2 off A 220 545 38 05 Plug
14 off ?? A 000 540 38 05 Connectors with wires (not certain on these qty's will edit when I've checked exactly) !!
4 off ?? A 000 540 39 05 Connectors with Wires (not certain on these qty's will edit when I've checked exactly) !!
I'm going to remove the RHS Depo in a while, make up some temporary wiring to plug the leveller into my cars Square Plug, plus some temporary Earths from the 5 pin on lamp and try them, see what works and what doesn't