GF27.10-P-0001-06AHL Automatic Transmission (AT), Transmission Modes

GF27.10-P-0001-06AHL Automatic Transmission (AT), Transmission Modes
- TRANSMISSION 722.9 (except 722.930/931) in MODEL 212





View of instrument cluster (A1) up to model year 11 /YoM 10 except code (494) USA version

A1p12 Gear display
A1p13 Multifunction display
A1p16 Transmission mode display

Changeover from Comfort ("C") transmission mode to Economy ("E") transmission mode

As of model year 11 /YoM 10, the labeling on the automatic transmission mode button (S16/12) and the display in the instrument cluster will be changed from Comfort ("C") transmission mode to Economy ("E") transmission mode.

Gear indicator in instrument cluster in Sport ("S") transmission mode and Comfort ("C") transmission mode or Economy ("E") transmission mode

It indicates to the driver the currently engaged gear "1", "2", "3", "4", "5" and "6" or selector lever position "D", "R", "N" and "P".

Gear indicator in instrument cluster in manual transmission mode "M" (except code (494) USA version)

It indicates to the driver the engaged gear "1", "2", "3", "4", "5", "6" and "7" or selector lever position "R", "N" and "P".

Transmission mode display in instrument cluster

It shows the driver the mode (Sport "S", Comfort "C" / Economy "E" or Manual "M" (except code (494) USA version) selected using the automatic transmission mode button.

The data come via the drive train CAN (CAN C) from the fully integrated transmission control unit (Y3/8n4) and from the intelligent servo module for DIRECT SELECT (A80).

4 different functions can be selected via the DIRECT SELECT lever (S16/13), and 3 different transmission modes can be selected using the automatic transmission mode button.

Selector lever positions

"P" Park lock and start position
"R" Reverse gear
"N" Neutral and start position (no power transmission, vehicle can move freely)
"D" Drive (all 7 forward gears are available)

Upshifting and downshifting

Upshifting and downshifting is performed using the steering wheel upshift button (S111/1) and steering wheel downshift button (S110/1) with code (428) Steering wheel shift paddles.

Upshifting and downshifting by the selector lever takes place via the following options:
- Touch "+", upshift by one gear at a time. The shift range is extended simultaneously in the transmission modes "C" / "E" and "S" (press and hold down, direct change to gear range "D").
- Touch "-", downshift by one gear at a time. The shift range is limited simultaneously in the transmission modes "C" / "E" and "S" (press and hold down, a shift range is selected in which optimum acceleration or deceleration of the vehicle is possible).

With a limited shift range, upshifts take place close to the maximum engine speed limitation.





View of center console up to model year 11 /YoM 10

S16/12 A/T transmission mode button

Automatic-transmission transmission mode button

The following transmission modes can be selected:
- Comfort "C" / Economy "E" transmission mode (start-off in 2nd gear except in 1st gear range; gear changes are performed at lower engine speeds)
- Transmission mode Sport "S" (start off in 1st gear for all driving situations)
- Transmission mode Manual "M" (except code (494) USA version) (direct gear selection by means of selector lever or downshift steering wheel gearshift button and upshift steering wheel gearshift button)

With kickdown the upshifts and downshifts take place as in transmission mode "S".