First read and observe the introductory information
and safety warnings
Seat belts may become damaged during any work on the belt tensioners or while removing or refitting any vehicle parts in conjunction with any other repair work. This damage will not always be noticeable. The consequence may be that the belt tensioners could function incorrectly, or not function at all, in the event of an accident.
Regulations must be observed to ensure that the effectiveness of the belt tensioner is not reduced and that removed parts do not cause any injuries or environmental pollution. Qualified workshops are familiar with these requirements.

WARNING
The airbag modules and belt tensioners may contain perchlorate. Please comply with legislation regarding disposal.
Automatic belt
retractor, belt tensioner, belt tension limiter
Airbag systemIntroduction
This chapter contains information on the following subjects:
→ Technical requirements
→ Fitting the removable ball coupling
→ Removing the ball coupling
→ Hitching and connecting the trailer
→ Loading the trailer
→ Towing a trailer
...
Checklist
Never carry out any work on the engine or in the engine compartment
if you are not familiar with the requisite procedures and general safety requirements,
or if you only have access to incorrect operating equipment, service fluids,
and unsuitable tools . The work should be carried ou ...
Overview of the menu structure
First read and observe the introductory
information and safety warnings
MFD (multifunction display)
Driving time
Current fuel consumption (Curr. fuel con.)
Average fuel consumption (Av. consumption)
Fuel range
Distance
Average speed
Digital speed display
Digital oil ...