Disabling Intelligent Speed Assist
Speed limit warnings from Intelligent Speed Assist1 can be temporarily disabled for the rest of the drive.
You can disable the alerts for exceeding the speed limit. However, they are enabled by default for each new drive. Speed limit warnings are disabled by turning road sign information off.
Press the disable ISA button 
on the steering wheel.
Speeding responses from Intelligent Speed Assist will not occur for the rest of your drive.
The speeding responses can be enabled again by pressing the same button as when you disabled them.