DTC button and HDC button
The DTC button is used to change the operating mode of the chassis control system. The DTC button bears the lettering "DTC".
The DTC button can be used to select 3 switching modes:
- DTC button not pressed after terminal change: DSC in operation (standard)
- Press DTC button briefly: DTC in operation (notification "DTC" appears in the instrument cluster above indicator lamp)
- Press DTC button for longer period: DSC and ASC switched off, ABS and ABD-X still active (indicator lamp in instrument cluster lights up continuously)
E70, E71: The DTC button is located in the center console control panel (no control unit). The center console switching center is connected to the integrated heater/automatic climate control (IHKA). The IHKA sends the signal on the K-CAN.
E60, E61, E62, E63 from 03/2007: The DTC button is in the switch block on the left, next to the ashtray. The switch block is connected to the center console switch center (SZM). The SZM control unit is installed in the carrier behind the glove compartment.
The graphic shows E70, E71.
| Index | Explanation |
|---|---|
| 1 | Center console control panel |
| 2 | HDC button HDC means Hill Descent Control: Hill Descent Control |
| 3 | DTC button |
E70: The HDC button is also in the center console control panel.
E60 and E61: Those buttons on the steering column available for programming as desired can be assigned to control the Hill Descent Control (HDC). The HDC can also be activated via iDrive.
The DSC receives additional input signals from the following components: