Driver Information - ADS II With Electronic Level Control

Driver Information on ADS II With Electronic Level Control






NOTE:
^ Numbers in parentheses ( ) indicate a component or tool in the associated illustration.
^ The adaptive damping system (ADS) malfunction indicator lamp (A1e27) for ADS II and the suspension is located in the instrument cluster.

SWITCHING ON THE IGNITION AND STARTING THE ENGINE
When the ignition is switched on (ignition/starter switch in position "2"), the malfunction indicator lamp in the instrument cluster lights up (bulb check) and goes out when the engine is running. The indicator lamps in the level control and comfort/sport switches also light up and display the setting previously selected when the engine is running.

MALFUNCTION INDICATOR LAMP EVALUATION
The adaptive damping system (ADS) malfunction indicator lamp (A1e27) lights up when the engine is running if there are electrical faults in the ADS/suspension system.

The fault is stored in the adaptive damping system (ADS) control module and can be read out with the Hand-Held Tester (HHT).

The lamp also lights up if the vehicle level at the front axle is more than 45 mm below the normal level. The light goes out again if the level is raised again to 35 mm below the normal level.

EMERGENCY RUNNING
A fault causes the ADS to be switched off, the damping is switched to the hardest stage. At the same time, depending on the type of fault, either the level control is brought to the normal vehicle level or kept at the adjusted level. Manual and automatic level adjustment is no longer possible.

ADAPTIVE DAMPING SYSTEM (ADS) COMFORT/SPORT SWITCH (S45/1)
A selection can be made between two damping characteristics using the adaptive damping system (ADS) comfort/sport switch. The red indicator lamp (LED) lights up in the switch (S45/1) in the comfort/sport switch position.

LEVEL ADJUSTMENT SWITCH (S77/1)
(Two switches are contained in this switch unit)

Level Adjustment Switch (High/Normal) (S77/1s2)
- The vehicle level can be raised in two stages by 15 mm or 30 mm using the switch. The high level switch position is displayed by the red indicator lamps (LEDs) in the switch (s2)

- If one or both indicator lamps in the switch flash, the required vehicle level is still not reached.

Level Adjustment Lock-Out Switch (S77/1s1)
- Before raising the vehicle (wheel changing, hoist), the lock-out switch (s1) must be operated when the engine is running. The vehicle level which has just been adjusted is retained. This is signalled by a red switch illumination and the adaptive damping system (ADS) malfunction indicator lamp (A1e27) which is switched on. The engine can be switched off again after the switch (s1) is operated.






DISPLAY OF LED's IN LEVEL ADJUSTMENT SWITCH DURING SYSTEM OPERATION