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Roof Flack
Use only those roof racks approved
by Mercedes-Benz to avoid damage
to the vehicle. Follow manufacturer's
installation instructions.
Mount supports only between
markings on border of roof which are
visible when doors are opened.
S 320
Layout of Poly-V-belt Drive
1 Automatic belt tensioner
2 Crankshaft
3 Air conditioning compressor
4 Fan
5 Air pump
S 420, S 500
6 Generator (alternator)
7 Idler pulley
8 Power steering pump
9 Coolant pump
For dimensions of the poly-V-belt, see
Technical Data in Index.