Ride-Level Adjustment

Ride-Height-Calibration

On the E70, in contrast to previous models, the following control modules are calibrated simultaneously depending on the equipment fitted:

Electronic Height Control

vertical dynamics management

Dynamic Drive

After work on the air suspension system involving the control module stated, correction values must be entered in the control modules. These correction values are determined in this test module after entering rim size and actual values on the E70. They are saved automatically in the recognized control modules.

Service functions

Ride-height-calibration
Ride-height-calibration must be carried out after the following operations:
- Replacement of the control module
- Replacement of height-level sensors
- Replacement of the wiring harness
- Saved fault 5D56 with fitted Dynamic Drive

Before the ride-height-calibration is run, the following points must be observed:

The vehicle must be in a horizontal position.

The chassis must not be tensioned.

The air suspension must have ceased operation (to be safe, switch the engine on and off).

The supply must be ensured (check battery voltage).

During the ride-height-calibration, the vehicle must not be loaded or unloaded.

Before calibration, check the height once again.

The ride-height-calibration is run automatically in the following sequence after entering the rim size and measured actual value (gap between wheelhouse edge / rim flange at bottom):

Recognition of the fitted control modules.

Check of the vehicle speed if Dynamic Drive is fitted.

Setting the transport mode if level control is fitted.

Reading in the rim size and actual values.

Calibration of the fitted control modules.

After the ride-height-calibration, the transport mode is automatically deleted. Control operation starts with the engine running. (In all cases, the transport mode must be deleted again before delivery to the customer).