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WARNING: If you have to tow the vehicle with
2 wheels raised, ensure that the ignition key is in the STOP position. Otherwise, with VDC activated, the relative control unit will store a malfunction, resulting in the illumination of the warning lights on the instrument panel and on the display: this requires the intervention of an Authorised Service Centre of the
Manufacturer’s Network to correct the system malfunction.
WARNING: In low- and medium-grip conditions
(e.g., rain, snow, ice, sand, etc.) it is advisable not to use SPORT mode, even with the VDC activated.
WARNING: Driving on parabolic curves will deactivate the system.
ASR SYSTEM
(ELECTRONIC ANTI-
SKID DEVICE)
The ASR system avoids driving wheels skidding during acceleration through the engine control unit (spark advance delay, engine throttle opening reduction and fuel injection cut) and the rear brakes.
The action of the ASR system enhances vehicle stability and improves active safety while driving, specially under the following conditions:
- inside wheel skidding when cornering due to dynamic load variations or excessive acceleration;
- excessive power transmitted to the wheels, also in relation to the road surface conditions;
- acceleration on slippery, snow-covered or icy roads;
- grip loss on wet road surface
(aquaplaning).
In normal conditions (SPORT mode off), the ASR system increases stability in low and medium grip conditions, while with SPORT mode active the system favours traction, thereby optimising vehicle performance on dry asphalt.
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ACTIVE AND PASSIVE SAFETY
ACTIVATION
The VDC and ASR systems are integrated in one single function and are automatically activated every time the engine is started; they can be deactivated by pressing the button A for about
1 second.
Press the button A once again to reactivate the systems.
The amber colour warning light on the instrument panel flashes during all the operating phases.
FAULT INDICATORS
In the event of a malfunction, the system is automatically disabled and cannot be reactivated. This condition is signalled while driving by the amber symbol on the display that illuminates together with the message “ASR failure - Go to workshop”.
MSR FUNCTION (ENGINE
BRAKING TORQUE
ADJUSTMENT)
The ASR system also controls the engine braking torque when the accelerator pedal is released under low grip conditions (e.g., snow, ice etc.): in these conditions, the high braking torque of the engine may cause instability of the vehicle.
The system, using the same sensors as the ABS system, detects the skidding of one or both of the driving wheels when the accelerator is released and opens the motor-driven throttle for the engine fuel system. This reduces the braking torque and resets the maximum grip conditions for the driving wheels.
WARNING: However, the maximum deceleration that can be obtained with the engine brake still depends on the tyre grip on the road. Snow or ice obviously reduce grip values.
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A
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