Remove/Install DC/DC Converter Control Unit For Windshield Heater - AR54.21-P-1603FRX
Model 257
with code 597 (Heated windscreen)
except code B01 (48V technology)
Model 290
with code 597 (Heated windscreen)
except code B01 (48V technology)
Shown on model 257
| Topical note | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m). | ||
| 2 | Remove door sill (1). | ||
| 3 | Remove floor covering (2) from front passenger footwell. | AR68.80-P-0008FR | |
| 4 | Unscrew nuts (3). | ||
| 5 | Remove footrest (4). | ||
| 6 | Detach electrical lines (5). | *BA54.21-P-1003-01E | |
| 7 | Disconnect electrical connector (6). | ||
| 8 | Unscrew nuts (7) and remove DC/DC converter control unit (8). | ||
| 9 | Install in the reverse order |
CONTROL UNITS/BASE MODULE
| Number | Designation | Model 257 | Model 290 | |
|---|---|---|---|---|
| BA54.21-P-1003-01E | Nut, line to windshield heater control unit | Nm | 8 | 8 |