Page 33 of 38
3.1 Circuit diagram (for ECE cars only)
Fold out folded page 3-9.
A3 Light module
A52 ABS/DSC control module
A53 Headlight adjustment control system (LWR) control module
B42 Load sensor at the rear right
B64 Load/level sensor at the front right
M80 Headlight servo motor, left
M81 Headlight servo motor, right
X1B* Black 10-pin plug
X1S* Black 10-pin plug
X596 Terminal 31 connector
X991 26-pin plug, Bordeaux
X1034 4-pin plug, natural (left headlight)
X1035 4-pin plug, natural (right headlight)
X1170 42-pin plug, natural (ABS/ASC control module)
X1451 6-pin plug, black (level sensor, rear right)
X1608* Terminal 31 connector
X10116 K-bus connector
X10117 54-pin plug, black (light module)
X10275 6-pin plug, black (level sensor, front right)
X10466* K-bus connector
The components marked "*" only refer to this circuit diagram, all other components refer to the BMW dealer
organisation circuit diagram.
The cables marked ”#” are in the vehicle wiring harness and are not supplied with the xenon light retrofit kit.
Cable colours
BL = blue
BR = brown
GE = yellow
GN = green
GR = grey
RT = red
SW = black
WS = white
EN/3-3
Page 34 of 38
MM
A3
VB K-BUS
54X10466*
K-BUS
1421
x0,35
WSRTGEx0,5
BLRT
KL 54 (Pin 25)X10117
X596A53
X1034
Q21 Q211 1
3
Q21
3 26Q21 31E
x0,5
BLRT
x0,5
BRSWx0,5
BLRT
VB31X1608*VB31
2 1 4
Q22 Q11 Q12 Q22 Q11 Q12 Q22 Q11 Q122 2
3 3
4 4
4
Q221Q112Q12
x0,5
GEBR x0,5
GERT x0,5
BLBR
x0,5
GEBR x0,5
GERT x0,5
BLBR
10 8 9
3
Q214Q221Q11 Q21 Q22 Q11 Q21 Q22 Q11 Q21 Q22 Q11
7 7
8 8
9 9
x0,5
GESW x0,5
BLBR x0,5
BLSW
x0,5
GESW x0,5
BLBR x0,5
BLSW
M80
LTG. VERD LTG. VERDRILLT LTG. VERDRILLT LTG. VERDRILLTLTG. VERD LTG. VERDRILLT LTG. VERDRILLT LTG. VERDRILLT
x0,5
BRSW
VB K-BUSX10116
x0,35
WSRTGE
#### ###
ECE
Page 35 of 38
A52
X10117
27LWR
X1170
18DFAVR
DFAVR LWR
1324
x0,5
GERTx0,35
GEWS
X991
11
2
Q12 Q12 Q12 Q12
X1035
10 10
x0,5
GEBR W
x0,5
GEBR W
X1S*
X1B*
623623X1451 X10275
B42 B64
20 7 22 16 5 18
X991
x x0,5
GRGN0,5
GRWSx0,5
GRBRx0,5
SWGNx0,5
SWWSx0,5
SWGR
HSSH HSGH HSPH
HSSH HSGH HSPHHSSV HSGV HSPV
HSSV HSGV HSPV
M81
F 53 0088 EVA
DRILLT DRILLT
#
3-9
Page 36 of 38
3.2 Circuit diagram (for US cars only)
Fold out folded page 3-19.
A3 Light module
A52 ABS/DSC control module
A53 Headlight adjustment control system (LWR) control module
B42 Load sensor at the rear right
B64 Load/level sensor at the front right
M80 Headlight servo motor, left
M81 Headlight servo motor, right
X596 Terminal 31 connector
X991 26-pin plug, Bordeaux
X1034 4-pin plug, natural (left headlight)
X1035 4-pin plug, natural (right headlight)
X1170 42-pin plug, natural (ABS/ASC control module)
X1451 6-pin plug, black (level sensor, rear right)
X1608* Terminal 31 connector
X10116 K-bus connector
X10117 54-pin plug, black (light module)
X10275 6-pin plug, black (level sensor, front right)
X10466* K-bus connector
The components marked "*" only refer to this circuit diagram, all other components refer to the BMW dealer
organisation circuit diagram.
Cable colours
BL = blue
BR = brown
GE = yellow
GN = green
GR = grey
RT = red
SW = black
WS = white
3-12/EN
Page 37 of 38
MM
A3
LWR
VB K-BUS
LWR
54X10466*
K-BUS
13
1421
x0,35
WSRTGEx0,35
BLRTx0,5
GE
KL 54 (Pin 25)X10117
X596A53
X1034
3Q21
3 26Q21 31E
x0,5
BRSW
VB31X1608*VB31
2 1 4Q22 Q11 Q12
4Q221Q112Q12
11 10 8 9
3
Q214Q221Q112Q1 Q21 Q22 Q11 Q12
M80
x0,5
BLRTx0,5
GEBR x0,5
GERT x0,5
BLBRx0,5
GE x0,5
GESW x0,5
BLBR x0,5
BLSW
LTG. VERDRILL LTG. VERDRILLT LTG. VERDRILLT LTG. VERDRILLT x0,5
BRSW
VB K-BUSX10116
x0,35
WSRTGE
USA
Page 38 of 38
X10117
27
3
5
ERT
A52
X1170
18DFAVR
DFAVR
24
x0,35
GEWS
X991
1
12
X1035623623X1451 X10275
B42 B64
20 7 22 16 5 18
X991
x0,5
GRGNx0,5
GRWSx0,5
GRBRx0,5
SWGNx0,5
SWWSx0,5
SWGR
HSSH HSGH HSPH
HSSH HSGH HSPHHSSV HSGV HSPV
HSSV HSGV HSPV
M81
F 53 0089 EVA
5
EBR
LLT
3-19
