Wiring Diagram Of Stationary Heater (STH) Control Module - PE83.70-P-2101-97FBA
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 up to model year 2019
with code 228 (Auxiliary heater)
Control unit A6, A6/1
Model 253 (except 253.99) up to model year 2020
with code 228 (Auxiliary heater)
Control unit A6, A6/1
| Code: | Designation: | Position: |
|---|---|---|
| AO | Use of wiring diagrams | 40L |
| A2/125 | Communications module/stationary heater antenna splitter | 31L |
| A6 | Stationary heater unit | 4A |
| A6 | Stationary heater unit | 14A |
| A6/1 | Stationary heater radio remote control receiver | 20A |
| A6/1 | Stationary heater radio remote control receiver | 28A |
| A6b1 | Stationary heater temperature sensor | 6A |
| A6b1 | Stationary heater temperature sensor | 15A |
| A6f1 | Stationary heater thermal fuse | 8A |
| A6m2 | Stationary heater combustion air blower | 13D |
| A6m2 | Stationary heater combustion air blower | 12A |
| A6n1 | Stationary heater control unit | 7A |
| A6r2 | Glow plug | 5A |
| A6r3 | Flame monitor | 4A |
| A6r4 | Stationary heater glow plug/flame monitor unit | 15D |
| Code F205 | MODEL SERIES 205 | 19D |
| Code F205 | MODEL SERIES 205 | 12A |
| Code F253 | MODEL SERIES 253 | 17D |
| Code F253 | MODEL SERIES 253 | 2A |
| Code F253 | MODEL SERIES 253 | 10A |
| F1/3 | Passenger-side A-pillar fuse box | 3L |
| F1/3f318 | Fuse 318 | 1K |
| K40/5 | Rear fuse and relay module | 24L |
| K40/5f410 | Fuse 410 | 23L |
| N22/1 | Climate control control unit | 11L |
| W16/4 | Right major assembly compartment ground point | 3E |
| W6 | Left wheel arch trunk ground point | 27L |
| W6 | Left wheel arch trunk ground point | 29L |
| W76 | Fuel pump ground point | 8G |
| X18 | Cockpit wiring harness and frame floor assembly electrical connector | 18G |
| X18 | Cockpit wiring harness and frame floor assembly electrical connector | 9E |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 20G |
| Y16 | Stationary heater switchover valve | 6L |
| Y23 | Stationary heater fuel pump | 8L |
| Z6/30 | Circuit 31 connector sleeve | 27G |
| Z68/24z1 | Connector sleeve, data line for climate control LIN 2 | 9G |
| Z68/25z1 | Connector sleeve, data line, A/C control panel LIN | 12G |