User Guide

 Special forms of the DMF
4 Special forms of the DMF
Driveplate DMF
Since 2008, a new gearbox generation has been fitted in
some Audi models. These gearboxes can be recognised
by the different arrangement of the differential. This is
now in front of the clutch in the direction of travel. As
a result, the power flow to the left drive shaft has to
be transmitted straight through the bell housing by a
flanged shaft. Because of this, use of a conventional
DMF is no longer possible. In order to equip this drive
concept with effective flywheel damping, the DMF with
driveplate was developed.
The driveplate is an adapter plate formed from sheet
steel, which is riveted on to the DMF at the usual fixing
points. The driveplate, like a torque converter in an
automatic gearbox, is bolted to the outer radius of the
coupling disc on the engine side.
Note:
More detailed information on the Audi clutch module
is contained in a separate LuK brochure and video.
Functions of the Driveplate:
• Itprovidesthespacerequiredforthepenetrationof
the flanged shaft
• Ittransferstheenginetorqueviatheboltedjointon
the coupling disc to the riveted joint on the DMF
Unlike the conventional DMF, the secondary mass has a
needle bearing on the gearbox input shaft. This results
in a favourable weight distribution between the two fly-
wheels. The internal construction of the DMF is practically
identical to that of the other types described.
1
1 Driveplate
1
2
3
4
5
1 Riveted joint
2 Flanged sha of the gearbox
3 Driveplate
4 Engine coupling disc
5 DMF
1
1 Secondary mass
needle bearing