Function Schematic For Stationary Heater (STH) Electrical System - PE83.70-P-2050-97FBA
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Model 205, 253
with code 228 (Auxiliary heater)
| Code: | Designation: | Position: |
|---|---|---|
| 1 | Stationary heater, status | 22H |
| 1 | Stationary heater, status | 9H |
| 1 | Stationary heater, status | 7E |
| 1 | Stationary heater, status | 17H |
| 1 | Stationary heater, status | 11H |
| 1 | Stationary heater, status | 13H |
| 1 | Stationary heater, status | 18C |
| 1 | Stationary heater, status | 22K |
| 1 | Stationary heater, status | 15L |
| 1 | Stationary heater, status | 18L |
| 1 | Stationary heater, status | 15F |
| 1 | Stationary heater, status | - |
| 1 | Stationary heater, status | - |
| 1 | Stationary heater, status | - |
| 10 | Low voltage differential signal video signal data transfer, signal | 29D |
| 11 | Departure time setting/activation, signal | 20C |
| 11 | Departure time setting/activation, signal | 9C |
| 12 | Departure time, signal | 24F |
| 12 | Departure time, signal | 8D |
| 12 | Departure time, signal | 15E |
| 12 | Departure time, signal | 10H |
| 12 | Departure time, signal | 9K |
| 12 | Departure time, signal | 14K |
| 12 | Departure time, signal | 16K |
| 12 | Departure time, signal | 18D |
| 12 | Departure time, signal | 12F |
| 12 | Departure time, signal | 13F |
| 12 | Departure time, signal | - |
| 12 | Departure time, signal | - |
| 12 | Departure time, signal | - |
| 12 | Departure time, signal | - |
| 13 | Stationary heater, request | 8E |
| 13 | Stationary heater, request | 10J |
| 13 | Stationary heater, request | 18D |
| 13 | Stationary heater, request | 13G |
| 13 | Stationary heater, request | 10C |
| 13 | Stationary heater, request | 16D |
| 13 | Stationary heater, request | 9K |
| 13 | Stationary heater, request | 14H |
| 13 | Stationary heater, request | 20H |
| 13 | Stationary heater, request | 20L |
| 13 | Stationary heater, request | 14K |
| 13 | Stationary heater, request | 17K |
| 13 | Stationary heater, request | 14F |
| 13 | Stationary heater, request | 17H |
| 14 | Ventilate/heat query, signal | 10C |
| 14 | Ventilate/heat query, signal | 20D |
| 15 | Ventilation/heating duration, signal | 23E |
| 15 | Ventilation/heating duration, signal | 18C |
| 16 | Ventilate/heat, request | 9B |
| 16 | Ventilate/heat, request | 20E |
| 17 | Fuel level, signal | 20E |
| 17 | Fuel level, signal | 9B |
| 18 | Circuit 15, status | 10B |
| 19 | Blower motor, request | 6C |
| 2 | Heat, request | 5G |
| 20 | Fuel pump, actuation | 5J |
| 21 | Coolant circulation pump, actuation | 6A |
| 22 | Stationary heater switchover valve, request | 5G |
| 23 | Stationary heater switchover valve, actuation | 1H |
| 24 | Consumer shutoff, request | 8A |
| 25 | Crash, signal | 19E |
| 25 | Crash, signal | 10B |
| 26 | Stationary heater radio remote control transmitter, signal | 10H |
| 26 | Stationary heater radio remote control transmitter, signal | 10K |
| 26 | Stationary heater radio remote control transmitter, signal | 15H |
| 26 | Stationary heater radio remote control transmitter, signal | 20H |
| 26 | Stationary heater radio remote control transmitter, signal | 20L |
| 26 | Stationary heater radio remote control transmitter, signal | 15K |
| 26 | Stationary heater radio remote control transmitter, signal | 17K |
| 27 | Open learning time window, request | 9H |
| 3 | Outside temperature sensor, signal | 35A |
| 4 | Outside temperature, signal | 8B |
| 5 | Interior temperature, signal | 35B |
| 5 | Interior temperature, signal | 8A |
| 6 | Stationary heater button, status | 6D |
| 7 | Stationary heater status indication, request | 4D |
| 8 | Audio/COMAND® controller, request | 26C |
| 9 | Switch-on request, signal | 30D |
| A1 | Instrument cluster | 25E |
| A2/102 | Left telephone antenna | 18K |
| A2/102 | Left telephone antenna | 18G |
| A2/103 | Right telephone antenna | 18L |
| A2/103 | Right telephone antenna | 18G |
| A2/109 | Telephone antenna splitter | 15L |
| A2/109 | Telephone antenna splitter | 16G |
| A2/125 | Communications module/stationary heater antenna splitter | 12H |
| A2/129 | Communications module/stationary heater antenna | 17H |
| A2/155 | Telephone and stationary heater antenna changeover switch | 13K |
| A2/52 | Emergency call system antenna | 17E |
| A26/17 | Head unit | 24C |
| A32m1 | Blower motor | 4B |
| A32n1 | Blower regulator | 4C |
| A40/8 | Audio/COMAND® display | 29F |
| A40/9 | Audio/COMAND® control panel | 30C |
| A6 | Stationary heater unit | 2F |
| A6/1 | Stationary heater radio remote control receiver | 8J |
| A6b1 | Stationary heater temperature sensor | 2F |
| A6f1 | Stationary heater thermal fuse | 2F |
| A6m2 | Stationary heater combustion air blower | 2G |
| A6n1 | Stationary heater control unit | 2G |
| A6r4 | Stationary heater glow plug/flame monitor unit | 2G |
| A8/3 | Stationary heater radio remote control transmitter | 22J |
| B14 | Outside temperature sensor | 36A |
| CAN A | Telematics CAN | 27C |
| CAN A | Telematics CAN | 27D |
| CAN B | Interior CAN | 12C |
| CAN B | Interior CAN | 12A |
| CAN B | Interior CAN | 20A |
| CAN B | Interior CAN | 28A |
| CAN D | Diagnostic CAN | 14D |
| CAN HMI | User interface CAN | 22D |
| CAN HMI | User interface CAN | 22F |
| CAN HMI | User interface CAN | 22G |
| Code 350 | Ecall Europe emergency call system | 10E |
| Code 360 | HERMES UMTS | 12E |
| Code 362 | HERMES LTE | 12E |
| Code 362 | HERMES LTE | 15F |
| Code 386 | Comfort telephony | 12K |
| Code 899 | Multifunction telephony | 12K |
| Code B24 | Radio remote control for stationary heater | 7H |
| Code B54 | Live Traffic Information | 10E |
| HSVL | High-speed video link | 27D |
| LIN B13 | Roof LIN | 36B |
| LIN B8-2 | Climate control LIN 2 | 7F |
| LIN B8-2 | Climate control LIN 2 | 7C |
| LIN B8-3 | AC operation LIN | 8F |
| LIN B8-3 | AC operation LIN | 4D |
| M13/5 | Coolant circulation pump | 5A |
| N10/6 | Front SAM control unit | 34A |
| N112/1 | Telematics services communication module | 11E |
| N112/9 | HERMES control unit | 14E |
| N2/10 | Supplemental restraint system control unit | 25G |
| N22/1 | Climate control control unit | 8C |
| N58/1 | Climate control operating unit | 3E |
| N58/1s8 | Stationary heater button | 2E |
| N70 | Overhead control panel control unit | 38B |
| N70b1 | Interior temperature sensor with integrated fan | 39B |
| N73 | Electronic ignition switch control unit | 19C |
| U1049 | Not valid for code 386 (Convenience Telephony) or for code 899 (Multifunction telephony) | 12L |
| U1052 | Not valid for code 360 (HERMES UMTS) and with code 362 (HERMES LTE) and with code B54 (Live Traffic Information) and with code 350 (eCall Europe emergency call system) | 12J |
| U1055 | Valid for code B54 (Live Traffic Information) and code 350 (eCall Europe emergency call system) | 12H |
| Y16 | Stationary heater switchover valve | 1H |
| Y23 | Stationary heater fuel pump | 6H |