This chapter contains information on the following subjects:
→ Indicator lamp
→ Using the cruise control system
The cruise control system (CCS) helps to maintain an individual set speed at forward speeds of approx. 20 km/h (12 mph) and higher.
The CCS only slows the vehicle by easing off the accelerator, not by actively braking. The CCS cannot maintain a constant speed when travelling downhill. The vehicle speed can increase under its own weight. Shift down gear and brake the vehicle using the foot brake .
Additional information and warnings:

WARNING
Indicator lampVibration, Causes for Vibration
There are many causes for vibration. Vibration can also be
caused by tire wear, among other things. Tire wear caused by
driving does not always develop evenly over the entire tread.
Due to this, a slight imbalance develops which disturbs the
smoothness o ...
Working on Airbag System
WARNING
When working on the airbag system (pyrotechnic
components, Airbag Control Module -J234-, wiring), the
ground cable must be disconnected with the ignition
switched on.
...
Legal Requirements
The manufacturer is granted general type approval for the
whole vehicle including all parts and for specific retrofitting
(general type approval according to § 20 StVZO (Motor Vehicle
Construction and Use Regulations or EU type approval).
...