Power flow in 2nd gear, function - GF27.10-P-3012AHX

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2016 Mercedes-Benz E63 S AMG, 2016 Mercedes-Benz E400, 2016 Mercedes-Benz E350, 2016 Mercedes-Benz E300, and 2016 Mercedes-Benz E250. However, it is still accessible from the selected car via links, so may be relevant.

TRANSMISSION 722.930 up to 31.5.11, 722.931 as of 1.6.11 in MODEL 212.0/2

Fig 1: Transmission Power Flow Diagram (2nd Gear) - Shown On Model 212.0/2

Courtesy of MERCEDES-BENZ USA

Function requirements for power flow in 2nd gear, general

Status "Circuit 87 ON"
Circuit 61 ON

Power flow in 2nd gear, general

The following multidisk brakes and multidisk clutches are engaged:

Multidisk brake B1 (42)
Multidisk brake B2 (43)
Multidisk clutch K3 (48)

Power flow in 2nd gear takes place via the following gear sets:

Ravigneaux gear set
Rear single planetary gear set
Front single planetary gear set

Ravigneaux gear set

The small ring gear (5) is driven via the transmission input shaft. The long planetary gears (50) roll over the stalled sun gear (7) and transmit the increased torque and reduced rotational speed as a result to the dual planet carrier (6).

Rear single planetary gear set

The ring gear (9) rotates at the same speed due to the mechanical connection to the dual planet carrier (6). The planetary gears (51) roll over the stalled sun gear (11) and transmit the rotary motion to the planet carrier (10).

Front single planetary gear set

The ring gear (12) has a mechanical connection to the planet carrier (10) and rotates at the same speed. The planetary gears (52) roll on the stalled sun gear (14) and transfer the increased torque and reduced rotational speed to the transmission output shaft via the planet carrier (13). The transmission output shaft thus rotates with reduced transmission input speed in the direction of rotation of the engine.

Overview of system components for automatic transmission (AT)

GF27.10-P-9992AHX