Heater/heat output switch, Climatronic control unit, air conditioning system control unit, auxiliary air heater control unit, auxiliary air heater element
A
-
Battery
E16
-
Heater/heat output switch
J255
-
Climatronic control unit
J301
-
Air conditioning system control unit
J519
-
Onboard supply control unit
J533
-
Data bus diagnostic interface
J604
-
Auxiliary air heater control unit
T4u
-
4-pin connector
T10c
-
10-pin connector
T20
-
20-pin connector
T20c
-
20-pin connector
SA5
-
Fuse 5 on fuse holder/battery
Z35
-
Auxiliary heating heater element
44
-
Earth point, lower part of left A-pillar
507
-
Screw connection (30), on fuse holder on battery
B397
-
Connection 1 (convenience CAN bus, high), in main wiring harness
B406
-
Connection 1 (convenience CAN bus, low), in main wiring harness
*
-
only models with heater
**
-
only models with semiautomatic air conditioning system