Heat Wiper Blade, Basic Function - GF82.30-P-9902A
Model All (CAR) With Code 874 (MAGIC VISION CONTROL incl. heated windshield washer system)
Overview
This document contains the following information:
- General
- Function requirement
- Function
General
The wiper blade heater prevents the washer fluid nozzles in the wiper blades from freezing and it prevents the wiper rubber sticking to the windshield.
Their flexibility is retained by heating up the wiper blades all over.
Function requirement
- Engine running or drive train operational
Function
From an outside temperature below 5°C, the wiper blade heater is activated and actuated cyclically up to -15°C. The cycle time here i always 60 s. If the outside temperature falls below -15°C, the wiper blades are permanently heated.
If the temperature changes, the preceding cycle is always run through to the end.
| Outside temperature | Actuation | Pause |
|---|---|---|
| 5... -2°C | 20 s | 40 s |
| -2...-9°C | 30 s | 30 s |
| -9...-15°C | 40 s | 20 s |
| <-15°C | 60 s | 0 s |
Actuation of the wiper blade heater is interrupted if the washer fluid pump is actuated. The wiper blade heater is actuated again 5 s after switching off the washer fluid pump.
| Function schematics | |||
|---|---|---|---|
| Function schematic, heat wiper blade | Model 167 with code 874 (MAGIC VISION CONTROL incl. heated windshield washer system) | PE82.30-P-2502-97A | |
| Model 223, 232 with code 874 (MAGIC VISION CONTROL incl. heated windshield washer system) | PE82.30-P-2502-97B | ||
| Control units | |||
| Basic function of signal acquisition and actuation module at front | Model 167, 223, 232 with code 874 (MAGIC VISION CONTROL incl. heated windshield washer system) | GF54.21-P-9896A | |
| Model 238 as of model year 2021 with code 874 (MAGIC VISION CONTROL incl. heated windshield washer system) | |||
| Components | |||
| Wiper blade heater, basic function | GF82.30-P-2005A |