Description of engine OM 607
48
Drive
b
Introduction of the New A-Class, Model Series 176
Belt drive
Timing belt drive
The alternator and the A/C compressor (when
equipped with THERMATIC and THERMOTRONIC)
are driven by a poly-V belt with six grooves.
New here is the use of a timing belt drive instead of
a chain drive. The camshaft, coolant pump and the
high-pressure pump are all driven by a toothed belt.
i
Note
Repair instructions for changing the toothed belt
are available in the Workshop Information System
(WIS).
P13.20-2097-00
P05.10-2461-00
1
Poly-V belt
2
Vibration damper
3
Belt tensioner
A9 A/C compressor
G2 Alternator
1
Crankshaft
2
Coolant pump
3
High-pressure pump
4
Camshaft
5
Belt tensioning pulley
6
Toothed belt
– This printout will not be recorded by the update service. Status: 06 / 2012 –