It is possible to increase/decrease the signed speed limit. If, for example, the car follows a signed speed limit of 70km/h (43 mph) the driver can instead choose to allow the car to maintain 75 km/h (47 mph).
Press the steering wheel button 
(1) until 70 km/h (43 mph) in the centre of the speedometer (4) changes to 75 km/h (47 mph).
(1) until 70 km/h (43 mph) in the centre of the speedometer (4) changes to 75 km/h (47 mph).After which, the car uses the selected tolerance 5 km/h (4 mph) as long as signs passed are showing 70 km/h (43 mph).
The tolerance is followed until a road sign with a lower or higher speed is passed - then the car follows the new signed speed limit instead and the tolerance is deleted from the memory.
If the Road Sign Information* function is activated, the signed speed limit will then be shown with a RED indicator on the speedometer.
The tolerance is adjusted in the same way as the speed setting is in the speed limiter.
Note
The maximum selectable tolerance is +/- 10 km/h (5 mph).