In combination with the navigation system Professional or Business, Speed Limit Info helps alert drivers to the current speed limit on the road on which they are travelling. The camera integrated into the rear-view mirror continuously monitors road signs, including variable-message overhead signs on motorways and dual carriageways. This information is checked against the navigation system's database of speed limits. The camera ensures that additional signs or temporary restrictions - at roadworks, for example - are taken into account. As part of this function BMW ConnectedDrive introduces the No Passing Info display in the new BMW 3-Series Sedan for the first time. As with speed limits, if the system detects an overtaking restriction, a symbol of a road sign is displayed in the instrument cluster or optional Head-Up Display until this restriction changes or no longer applies. The system stores all the data temporarily, allowing the most recently recorded limits and restriction signs to be flagged up once again if the driver resumes a journey after a short break.

In addition, a Speed Limit Device can now also be ordered as an option. This system limits the car's maximum speed to between 30 and 230 km/h (19 and 143 mph), as set by the driver using a keypad on the left-hand steering wheel spoke. The car can then accelerate without restriction up to the pre-set limit. Should the driver wish to exceed this speed even though the speed limit function is activated, a short, firm stamp on the accelerator lifts the restriction briefly. The function becomes active again as soon as the car slows back down below the pre-set limit.