17
E82 Complete Vehicle
The use of five links enables free selection of the pivot axle for the design layout. This
means that the movement of the wheel interacting with the suspension can be optimized
without compromise under braking, acceleration and lateral forces. This mostly deter-
mines all important variables such as toe, camber, brake support (anti-dive) angle, roll
center and roll center change rate.
The large rear axle carrier is connected directly to the rigid frame side member, allowing it
to transmit impact forces more favorably. The semi-trailing arm is a crash collapsible com-
ponent (in the semi-trailing arm of the HA 5 rear axle) to ensure the fuel tank is not dam-
aged.
The braking support
(anti-div
e characteristic) on the E82 and on E9X vehicles represents
an optimum compromise between comfort, safety and driving dynamics requirements.
The placement of the axle carrier mounting points considerably lower stress and strain on
the body with the use of relatively soft rear axle bearing mounts. Together with the double
flexible mounting, this provides outstanding insulation against road noise and tire rolling
noise.
Note: For further information on the 1 Series front or rear suspension
refer to the E90 reference material.
HA 5 Rear Axle
(inner side of wheel view)
Index Explanation Index Explanation
1
Semi-Trailing Arm
4
Toe Link
2
Traction Strut
5
Camber Link
3
Control Arm
×
Front of
Vehicle
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