Help please!

[colamangr]

Hello!
I would like to ask something. Before a month i installed the IHKA(automatic clima) to my car(e34 520 91) I thought all was ok until i saw that picture
I only have the KLIMATAKTUNG thing (and i haven't installed it yet because i don't know where it goes) but i see that it needs and the other one "Relaisbox" and another black box which i don't know what it is...
My questions are:where the KLIMATAKTUNG thing goes and do i need the other two(Relaisbox and "black box")?

[Qsilver7]

Hello!
I would like to ask something. Before a month i installed the IHKA(automatic clima) to my car(e34 520 91) I thought all was ok until i saw that picture
I only have the KLIMATAKTUNG thing (and i haven't installed it yet because i don't know where it goes) but i see that it needs and the other one "Relaisbox" and another black box which i don't know what it is...
My questions are:where the KLIMATAKTUNG thing goes and do i need the other two(Relaisbox and "black box")?

There are different IHKA control units (IHKA 1, IHKA 2, IHKA 3) and there are different relays that go with different IHKA units.

Click the following link to see the parts diagram for BMW part nbr 61 31 1 379 737: http://www.realoem.com/bmw/showparts...61&fg=25&hl=10

BMW part nbr 61 35 2 233 107 (item on the top left) is not for your 520...if you go to the online parts database and punch in that nbr (using the Parts Cross Reference feature) you'll see that it is for 530i/540i/M5: http://www.realoem.com/bmw/partxref....=on&showeur=on

The item on the bottom in your pic (BMW part nbr 8 355 139 is the DWA (theft control unit) and it also is not for your 520i...you can enter the part nbr, using the Part Cross Reference feature, and see which E34s use that part: http://www.realoem.com/bmw/partxref....=on&showeur=on