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:
→ Displays, warning and indicator lamps
→ Radar sensor
→ Operating Adaptive Cruise Control (ACC)
→ Switch off the Adaptive Cruise Control (ACC) temporarily in the following
situations ...
Removing and installing fuel line for auxiliary/supplementary heater
Removing
–
Observe safety precautions
→ Chapter.
–
Observe rules for cleanliness
→ Chapter.
–
Fuel tank must not be more than 3/4
...
Removing and installing oil pump
Removing
–
Remove sump (bottom section)
→ Chapter.
–
Unclip cover for oil pump drive sprocket
-arrows-.
...