The following pages describe the design modifications to the axles of the Passat ‘97 as presented
to you in Self Study Programme SSP 191.
Running Gear
Torsion beam rear axle
The anti-roll bar used in the new torsion beam
rear axle is located in front of the axis of
rotation. The rear axle mountings are located
on the far outer side of the axle. This consi-
derably reduces the forces acting on the rear
axle mountings.
The mounting housing is made of aluminium
and bolted to the trailing arms.
When designing the rear axle, comfort was a
major consideration. The rear axle mountings
and the large rubber bases of the coil springs
minimise noise transmission from the axle to
the body.
Anti-roll bar
Rear axle mounting
Rubber base
SSP 192/100
On axles where the rear axle mounting is
located on the inside, the mountings have
to absorb large forces when cornering.
Locating the rear axle mountings on the out-
side makes the lever arms shorter, with the
result that the mountings only absorb smaller
forces. They can therefore be designed with a
softer rating.
SSP 192/112
SSP 192/111
Trailing armr
Axis of rotation
Long lever arm
Short lever arm
Rear axle mounting
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