7-Speed Automatic Transmission - Mercedes-Benz Series 218 Coupe Introduction Into Service Manual

7-speed automatic transmission

7G-TRONIC PLUS
In all models (except CLS 63 AMG), the familiar
7G-TRONIC 7-speed automatic transmission is
installed as standard as the 7G-TRONIC PLUS with
start/stop function and DIRECT-SELECT selector
lever.
The consumption-reducing measures include a dual
turbine torsional damper with rpm-adaptive centrif-
ugal pendulum (not on CLS 350), which allows for
extreme reduction of slip at the torque converter
lockup clutch, combined with greater mechanical
damping insulation even at very low loads and
engine speeds, including during shift operations.
Furthermore, drag has been reduced by a new
bearing on the oil pump, improved Torlon rings on
the input and output shafts as well as a new auto-
matic transmission fluid (FE-ATF) with reduced
viscosity.
The color of the new fluid has been changed from
red to blue because it may not be used in older
model transmissions. The notes in service informa-
tion SI00.40-P-0014A in WIS on usage of the new
transmission fluid must be observed.
The oil change intervals have been extended
because the transmission fluid is subjected to less
energy due to the minimization of drag. For more
information, see the corresponding documents in
WIS.
52 Introduction of the New CLS-Class, Model Series 218 Coupe
b
– This printout will not be recorded by the update service. Status: 09 / 2010 –
Torque converter (sectional view)
1 Torque converter housing
2 Turbine wheel
3 Impeller
4 Torsional damper
5 Drive shaft (transmission)
A Fluid feed
B Fluid return
C Torque converter lockup clutch actuation
S16/12 Automatic transmission transmission mode but-
ton
P27.20-2108-00
P27.60-3487-00