文档介绍：%0:*URXS
$IWHUVDOHV 7UDLQLQJ
( &KDVVLV
3DUWLFLSDQW 0DQXDO
NOTE
The information contained in this participant's manual is intended for
participants of the Aftersales Training.
Refer to the relevant "BMW Service" information for any changes/
supplements to the Technical Data.
© 2003 BMW AG
München, Germany. Reprints of this manual or its parts
require the written approval of BMW AG, München
VS-12/Vs-42 MFP-HGK-BRK-E83_0400
Contents
Page
CHAP 1 E83 Chassis and suspension 1
Front/rear axle 2
Suspension and damping 6
Brakes 8
Steering 14
Wheels and tyres, tyre defect indicator 17
E83 Chassis and Suspension
E83 Chassis and suspension
As with all BMW vehicles, the layout of the X3 chassis and suspension
was designed with particular emphasis on driving pleasure, dynamics
and favourable handling.
The main aim in the full development of the X3 was to achieve:
- Agility on the road,
- Driving dynamics,
- Stability and
- Traction.
The following areas are discussed on an E83-specific basis:
- Front/rear axle
- Suspension and damping
- Brakes
- Steering
- Wheels and tyres, tyre defect indicator
- 1 -
E83 Chassis and Suspension
Front/rear axle
Front axle
KT-12437
Fig. 1: Front axle
Index Explanation Index Explanation
1 Swivel bearing 5 Tension strut
2 Anti-roll bar link 6 Anti-roll bar
3 Thrust zone (reinforcement plate) 7 Front axle carrier
4 Control arm 8 Stoneguard disengaged
The double-joint spring strut axle with tension struts is essentially
comparable to the front axle of the E53 (X5). The front ponents
that are placed under particular load are designed as forged steel parts.
This includes the control arm, tension strut and the swivel bearing.
- 2 -
E83 Chassis and Suspension
The front axle carrier is made of reinforced steel tubing onto which a
thrust zone (reinforcement plate) is bolted. This thrust zone makes a
decisive contribution to the precision of the axle kinematics and to the
rigidity