Electronic stability control (ESC) - general
The activation of the ESC system during braking may be noticed as a throbbing sound. The car may accelerate slower than expected when the accelerator pedal is depressed.
Warning
The stability system ESC is supplementary assistance - it cannot handle all situations in all road conditions.
The driver always bears responsibility that the vehicle is driven safely and that applicable road traffic rules and regulations are followed.
The ESC system consists of the following functions:
- Active Yaw Control
- Spin Control
- Traction control system
- Engine drag control - EDC
- Corner Traction Control - CTC
- Driver Steering Recommendation – DSR
- Trailer Stability Assist* - TSA
Active Yaw Control
The function checks the driving and brake force of the wheels individually in order to stabilise the car.
Spin Control
The function reduces engine power if the drive wheels slip against the underlying surface in order to maintain stability and traction.
Traction control system
The function is active at low speed and transfers power from the driving wheel that is spinning to the one that is not.
Engine drag control - EDC
EDC (Engine Drag Control) prevents involuntary wheel locking, e.g. after shifting down or engine braking when driving in low gears on slippery road surfaces.
Involuntary wheel locking while driving can, amongst other things, impair the driver's ability to steer the car.
Corner Traction Control - CTC
CTC (Corner Traction Control) compensates for understeer and allows higher than normal acceleration in a bend without wheelspin on the inner wheel, e.g. on an arcing motorway entrance road to quickly reach the prevailing traffic speed.
Driver Steering Recommendation – DSR
DSR (Driver Steering Recommendation) helps the driver steer the car in the right direction when there is reduced traction or when the ABS system engages.
The primary role of the DSR function is to help the driver steer in the right direction when the car is skidding.
DSR engages by applying slight torque to the steering wheel in the direction in which the car should be steered to maintain/achieve maximum possible traction and stabilise the car.
Trailer Stability Assist* - TSA1
Trailer stability assist function is to stabilise the car and trailer combination if it begins to snake. For more information, see Driving with a trailer.