Driving behavior and driving safety depend, among other factors, on how reliably the wheels guide the car in the chosen direction. Both must occur as precisely and purposefully as possible. Therefore, the steering response is precisely adjusted to the axles and to the steering geometry.
The Focus's chassis is a convincing example of how modern mid-size cars do not require their customers to make big compromises in terms of comfort and driving safety. McPherson shock absorbers discipline the Focus's front wheels, while the rear wheels, each individually, are under the supervision of the axle's central arm. The rear wheels, like in the Mondeo Turnier, are guided by an SLA suspension with transverse arms of different lengths. The SLA suspension corrects the track, making the Focus a pleasantly active car in motion. All elements of the rear axle suspension are supported by a separate transverse support, which is screwed soundproofingly to the car's underbody.
Servo control: 1 - expansion tank with hydraulic oil; 2 - hydraulic oil pressure line; 3 - rack and pinion steering mechanism; 4 - hydraulic oil return line; 5 - cooling element (depending on model and configuration); 6 - oil pump.