300SL (129.061) L6-3.0L (104.981) (1991)
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Seat Belt Tensioner: Description and Operation
Operation
Design of Emergency Tensioning Retractor (ETR)
K18/2
Left front seat belt lock relay module
K18/3
Right front seat belt lock relay module
R12/1
Left front seat ETR squib
R12/2
Right front seat ETR squib
4
Eye with Bowden Cable for keeping belt free
6
Threaded mount for attaching ETR Unit
9
Inertia Reel with ETR Unit
10
Plunger
11
Cable
12
Tube
21
Inspection Window
Operating Principle
