Self Study Program 851403 – The 02E Direct Shift Gearbox

VAG SSP 851403. The current transmission market in Europe is primarily manual transmissions. However, the markets in Japan and the United States use primarily automatic transmissions. Both of hese transmissions have benefits and drawbacks.

Manual transmission benefits:

  • High efficiency
  • Strength
  • Driver control

Automatic transmission benefits:

  • High comfort
  • Ease of use

Based on this information, Volkswagen set out to design a transmission that combined the best characteristics of each of these transmissions. The result is the Direct Shift Gearbox (DSG).

The dual wet-clutch design and automatic shifting programs of this transmission will satisfy the automatic transmission driver’s demands of high comfort and ease of use.

The fast and smooth shifting capabilities, which can be controlled by the driver, satisfy the manual transmission driver’s demands.

Also, this transmission offers fuel consumption characteristics as low as most vehicles with manual transmissions.


  • Introduction
  • Selector Lever
  • Direct Shift Gearbox Design
    • Basic Concept, Torque Input, Multi-disc Clutches, Driveshafts, Output Shafts, Reverse Gear Shaft, Differential Gear, Selector Lever Park Position Interlock, Synchronization, Torque Transfer in the Vehicle, Power Flow in the Transmission
  • Mechatronics Module
  • Electro-hydraulic Control Unit
  • Transmission Lubrication System
  • System Overview
  • Sensors
  • Actuators
  • Functional Diagram
  • CAN-Databus-Links
  • Diagnostic
  • Service

The Self-Study Program provides you with information regarding designs and functions.
The Self-Study Program is not a Repair Manual.
For maintenance and repair work, always refer to the current technical literature.

Language: English
Format: PDF
Pages: 69

Self Study Program 851403 – The 02E Direct Shift Gearbox PDF free online