Automatic transmissions - Bus

Traveling comfortably and economically:
DIWA automatic transmissions for public transit buses

Today, almost all midsize, city or long distance buses can be fitted with DIWA automatic transmissions. This means state-of-the-art technology for the full range of combustion engines.

DIWA - that's how you spell transmission.

Specially developed for public transit buses, these transmissions are a must-have for economical operation: Reduced complexity and less installation effort for the manufacturer, lower fuel consumption and rock-bottom maintenance and service costs for the operator. And not only today - but for the entire service life of the bus.



Tried and tested all over the world: The DIWA.3E transmission with E 310 control system and ALADIN diagnostic software offers maximum reliability and durability. more


DIWA.5 is the ideal solution for modern public transit buses. Operating conditions for the vehicle and the transmission can be precisely analyzed with the operating data recording system. Advantages to you the operator: targeted maintenance and repair schedules; higher availability and lower operating costs. more


DIWA.6 already satisfies the requirements of the pending Euro 6 Standard and sets new standards for automatic transmissions in public transit buses: By combining the proven advantages of DIWA with reduced operating pressure as required and an intelligent engine-start management system. This will ensure economical traveling long into the future. more



SensoTop reduces fuel consumption by up to 7%. How does it work? With a gear-shifting program that constantly determines the optimal gear-shifting points. And while doing so, it constantly analyzes all data received about the topography of the road, the vehicle's load, and its acceleration. This makes annoying gear hunting a thing of the past: Your passengers will appreciate even greater comfort.


When the brakes are applied, the differential converter acts as a retarder. It relieves the load on the operating brake and increases braking power at medium and high speeds by up to 30%. Your advantages: Less wear on the brakes and increased driving safety.

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Passenger Comfort

The proven DIWA power split principle allows stepless starting and braking across a speed range, where other transmissions require two to three gear shifts. The result: Up to 50% fewer gear shifts, higher driving comfort - and significantly lower wear in the driveline.

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Recording operating data

E300.1 offers a new dimension in recording operating data.

Vehicle and transmission usage conditions can be analyzed in detail using the saved data. The advantage for you is optimizing your vehicle use or selecting a suitable driveline.

Voith is a competent partner for vehicle manufacturers and operators.

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ALADIN diagnosis software

Simple and intuitive to operate, quick and precise diagnostics. ALADIN presents service and operating data in clear, printable reports. All important data from the control device is taken into account, including vehicle key figures, operating data, downtimes, adaptation values and much more.

Benefits to you:

  • Less time required for diagnosis
  • Shorter downtimes
  • Maintenance and repair can be better planned
  • Greater vehicle availability
  • Lower operating costs
  • Integrating repair instructions into the OEM diagnosis system is possible
  • Download

    ALADIN diagnosis software
    Version: 6.2.2
    OS: Windows7 32/64 Bit
    Windows8 32/64 Bit
    Windows8.1 32/64 Bit

    For Voith electronic control units E300, E300.1, E310, E305, M300 and E200

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    Worldwide Successful. DIWA Automatic Transmissions

    Worldwide Successful. DIWA Automatic Transmissions

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    Shell Spirax VM Plus

    Shell Spirax VM Plus

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    Voith Turbo GmbH & Co. KG
    Market Division
    Commercial Vehicle
    Bus Drive Systems
    Alexanderstraße 2
    89522 Heidenheim, Germany

    Tel. +49 7321 37-8460
    Fax +49 7321 37-7818

    Sustainable Solution for Urban Mobility.

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