| The ABS prevents the wheels from locking during a brake application initiated by the driver. |
| The electronic differential lock, EDL, is a starting-off aid. A supporting torque is created for the differential by electronically controlling the braking of the driven wheel which is slipping. The engine power is thus available for the gripping wheel with the better adhesion. This also applies when reversing. |
| A description of the structure and function of the ABS and the EDL can be found in self-study programme No. 26. |
| The electronic stability program -ESP- recognises critical driving conditions and stabilises the vehicle by individual wheel braking and by intervention in the engine control. This occurs independently of a brake or accelerator pedal activation. |
| The ESP is active over the entire speed range. If the ESP is in regulating mode, the ESP warning lights flash three times per second. |
| The description of the structure and function of the ESP can be found in self-study programme No. 28. |
| The brake system is split diagonally. Brake servo assistance is provided pneumatically by the vacuum brake servo unit. |
| Vehicles fitted with ABS/EDL/ESP ITT Mark 20 IE do not have a mechanical brake pressure regulator. Specifically matched software in the control unit, the electronic brake pressure distribution, EBD, regulates the brake pressure on the rear axle. |
| The hydraulic pump -V64-, the hydraulic unit -N55- and the control unit -J104- form the hydraulic control unit. A repair is only possible in the removed condition. |
| New control units supplied through the Parts Division are not coded. They must be coded after installation. |
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