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The Mercedes-Benz Turbo Retarder Clutch

For moving off in the most challenging traction conditions and manoeuvring at the very lowest speeds, Mercedes-Benz Turbo Retarder Clutch delivers unmatched precision and control of the heaviest loads.

Perfectly suited to the logging and construction industries, the Turbo Retarder Clutch puts your power on the road and lets you tackle extreme gradients or tricky terrain with ease and confidence.

With the Turbo Retarder Clutch, Mercedes-Benz have delivered a unique additional drive and braking system that combines the functions of a hydrodynamic start-up clutch and a primary retarder in a single component.

Flawless Hill Starts

Automatically removing roll-back from hill starts, the Turbo Retarder Clutch operates simultaneously with the brake, only releasing it when downward force is matched by forward propulsion from the accelerator.

Once safely engaged, lightly reducing pressure on the accelerator will cause your truck to slowly roll-back under your total control enabling you to roll-back with millimetre accuracy.

Perfect Manoeuvring

Constant starting torque is provided for complete control without engaging the accelerator, enabling precise positioning of your truck using only the brake pedal.

Once you’ve moved-off, the Turbo Retarder Clutch will transfer over to a conventional friction clutch and a purely mechanical drive-train providing a smooth and efficient driving experience.

Unmatched Braking Torque

Even at the lowest speeds, high levels of braking torque are available at any time from the Turbo Retarder Clutch using the transmissions gear ratios.

The integrated retarder is driver activated using either the brake pedal or by the five-stage multi-function lever which causes the turbine rotor to lock into its housing, creating oil flow between the two impellor wheels and generating braking torque on the impellor.

Ample braking control and constant reduction of heat at low-speeds will not only deliver unmatched control but significantly reduce wear.

When specified in a Mercedes-Benz Actros or Arocs, the Turbo Retarder Clutch will transfer the tremendous power of the engine swiftly and precisely enabling you to conquer any terrain, gradient or conditions with ease, whatever the load.

Talk to Trucks & Trailers on 0800 327 777 today and ensure your trucks are equipped with the world’s most capable drive and braking system.


  • Improves trip times and aids high horsepower productivity
  • Improved performance on any terrain or gradient
  • Perfectly suited to high multi-combination weights
  • Handles HPMV permits with ease
  • Significant increased safety
  • Reduced brake wear
  • Reduced clutch wear
  • Always-available high starting torque
  • Crawler inclusive
  • Better overall gearing spread
  • Automatic operation


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