Designation Description Coordinates Related diagram
B38  Rain sensor 19L  
C2  Electrolytic capacitor (generator/battery harness noise suppressor) 6E  
F1  Fuse and relay box 36L PE54.15
F1f22 Maxi-Fuse 22 36K  
F4 Fuse box in trunk 20L PE54.15
F4f9 Fuse 9 20K  
K40/2  Driver-side fuse and relay module box 6A
12A
20A
PE54.20
K40/2f1 Fuse, wipe relay module, stage 1-2 17A  
K40/2f2 Fuse, washer pump 21A  
K40/2f3 Fuse, HCS pump 7A  
K40/2f4 Fuse, Horns 2A  
K40/2f5 Fuse (SAM) 12A  
K40/2f6 Fuse, washer nozzle heating 11A  
K40/2k1 Wiper stage 1 relay 16A  
K40/2k2 Wiper stage 2 relay 14A  
K40/2k3 Windshield washer relay 19A  
K40/2k5 HCS pump relay 9A  
M5/1  Windshield washer pump 18L  
M6/1 Wiper motor 8L  
N10/1  Signal pickup- and activation module (SAM) left front 15F
29L
PE54.21
N70 Roof control unit control module 24L  
N73 Electronic ignition-starter switch (EIS) control module 11L
30A
34A
 
R2/2  Left heated windshield washer nozzle 15L  
R2/2x1 Left heated windshield washer nozzle connector 15J
16G
B.1/4
R2/3 Right heated windshield washer nozzle 16L  
S4  Combination switch 35L  
S4s4 Washer switch 35K  
S4s5 Wiper switch 34K  
S4x1 Combination switch connector 34H  
U88  Valid for vehicles with rain sensor 18G  
W1  Main ground (behind instrument cluster) 2H
30E
B.2/3
W16/3 Ground (output ground - component compartment - left) 17G B.2/1
W19 Ground (right front seat crossmember) 21L B.2/5
X4  Terminal block (circuit 30, left footwell) 2H
29E
B.1/3
X26/23 Engine compartment/cockpit connector 31E B.1/5
X30/7 CAN connector 25A B.1/5
Z3/26  Circuit 15 (unfused) connector sleeve 10G B.3/1
Z3/27 Circuit 15R (unfused) connector sleeve 11G B.3/1
Z37/2 Engine CAN-Bus (low) connector sleeve 27E B.3/2
Z37/3 Engine CAN-Bus (high) connector sleeve 28E B.3/2