Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Main Components and Functions

Main Components and Functions
Overview of Construction and Function

Overview of Construction and Function (Part 1):




Overview of Construction and Function (Part 2):





Planetary Gear Sets
The individual gears are shifted by means of 2 planetary gear sets, connected one behind the other.

Clutches and Bands
The individual ratios are selected by means of 4 multi-plate clutches, a brake band and a roller one-way clutch.

The components are controlled by the PCM through pulse width modulation (PWM) solenoid valves.