Sequentronic automated manual transmission (SEQ), driver information - GF26.00-P-0002-01T
Models 209, 211
| 15.03.07 | The document has been updated to this date and will no longer be subject to revision. |
Gear display (A1p12) in instrument cluster (A1):
The display indicates the currently engaged gear with the symbol: "1", "2", "3", "4", "5", "6", "R" or the neutral position with the symbol "N". The display "0" appears if a gearshift is made while the vehicle is stationary without depressing the brake pedal. When the brake pedal has been depressed, the symbol "N" is displayed. When the operator selects the automatic shift mode, the system responds by displaying the symbol "A".
Permanent system monitoring by the automated manual transmission control module (N15/6) detects any faults occurring. If a detected fault switches the system to limp-home mode, the symbol "F" is displayed in the instrument cluster (A1) and the fault code associated with the fault is stored in the automated manual transmission control module (N15/6).
Safety concept
Input and output signals and the status of the system are constantly monitored by the automated manual transmission control module (N15/6) while driving. If a fault is detected, the system reacts according to the safety concept. This is comprised of emergency strategies, emergency action and safety modes.
If a fault occurs in the system, the emergency strategies prevent critical situations for the driver from arising. The system's level of functionality with the engine running is reduced. The driver is still able to reach the nearest workshop.
If several faults occur simultaneously, the panel on the multifunction display (A1p13) in the instrument cluster (A1) displays the text message for the fault with the highest priority.
Text messages in the multifunction display (A1p13)
Situation
Vehicle parked in "N"
Text display in instrument cluster
Engage parking brake!
Color
Red
Gear indicator in instrument cluster:
N
Warning buzzer
Yes (intermittent)
System reaction
The vehicle can be left in "N". The warning disappears as soon as the parking brake is applied or the ignition is switched off.
Situation
Opening of driver's door with engine running and gear engaged
Text display in instrument cluster
Select N!
Color
yellow
Gear indicator in instrument cluster:
Current gear
Warning buzzer
Yes (intermittent)
System reaction
If the driver does not depress either the accelerator pedal or the brake pedal for a period of approx. five seconds, the system automatically selects "N."
Situation
Engine start with gear engaged
Text display in instrument cluster
To start
Select N!
Color
yellow
Gear indicator in instrument cluster:
Current gear
Warning buzzer
No
System reaction
The start sequence is ignored.
Situation
Engine start with gear engaged (after previous shift to "N")
Text display in instrument cluster
Select N!
Request gear again
Color
yellow
Gear indicator in instrument cluster:
Current gear (gear indicator flashes on and off)
Warning buzzer
No
System reaction
The start sequence is ignored.
Situation
System emergency default mode activated
Text display in instrument cluster
Transmission limp-home mode
Visit workshop!
Color
Red
Gear indicator in instrument cluster:
Current gear
Warning buzzer
No
System reaction
The transmission can only be shifted as far as 3rd gear.
Situation
System error or system failure
Text display in instrument cluster
Visit workshop!
Color
Red
Fault display in instrument cluster
F
Warning buzzer
No
System reaction
The current gear change is either performed or aborted entirely depending on the severity of the system error. All further gear changes are suppressed.