Cylindrical springs assembled with shock absorbers installed inside them represent a suspension strut. The upper part of the suspension strut is attached to the upper front suspension bracket, and the lower part is attached to the transverse arm.
The torque from the gearbox to the wheels is transmitted using drive shafts with constant velocity joints.
Each shaft consists of three parts: internal and external joints of equal angular velocities (SHRUS) and the central part of the shaft.
The splined tip of the outer hinge housing is inserted into the wheel hub and fixed with a nut. CV joints are lubricated with grease, which is replaced only when the joint is disassembled.
Attention. It is strictly forbidden to carry out welding and straightening work on the elements of the front suspension. Be sure to replace self-locking nuts, as well as bolts with traces of corrosion.
Pic. 7.1. Front suspension of AUDI A6 cars
1 - bearing support bracket,
2 - shock absorber,
3 - console,
4 - lower front frame for mounting units,
5 - anti-roll bar,
6 - drive shaft,
7 - three-arm hinge (tripoid),
8 - upper rear transverse arm,
9 - steering rod,
10 - upper front transverse arm,
11 - steering knuckle,
12 - hydraulic support,
13 - lower rear transverse arm,
14 - lower front transverse arm,
15 - stabilizer earring
Pic. 7.2. Elements of the front suspension of cars AUDI A6
1 - hex head bolt, 65 Nm,
2 - washer,
3 - hex head bolt M10x60,
When installing, a new bolt must be used.
4 - front upper transverse arm, Replace rubber mount.
5 - hex head bolt, 7 Nm,
6 - bolt,
7 - self-locking nut, 50 Nm,
When installing, a new self-locking nut must be used.
8 - hex bolt M10x100,
9 - self-locking nut, 40 Nm,
When installing, a new self-locking nut must be used.
10 - upper front cross arm, The arm can only be removed together with the bracket.
11 - shock absorber,
12 - bolt M12x1.5x120,
When installing, it is recommended to use a new bolt.
13 - lower rear transverse arm with hydraulic support,
If oil leaks from the hydraulic support, the support must be replaced.
14 - self-locking nut, 100 Nm, When installing, a new nut must be used.
15 - steering knuckle,
16 - protective plate,
17 - bolt,
When installing, a new bolt must be used. When tightening the bolt, the vehicle must be on its wheels.
Tightening torques:
- Bolt M14 - 115 Nm + tighten by an angle of 180°;
- Bolt M16 - 190 Nm + tighten by an angle of 180°.
18 - bolt, 10 Nm,
19 - self-locking nut, 100 Nm,
20 - bolt M12x1.5x85,
21 - self-locking nut, 90 Nm, When installing, a new nut must be used.
22 - stabilizer earring,
The arrow on the earring points to the front of the car.
23 - self-locking knurled nut, 70 Nm,
When installing, a new nut must be used.
Attention. There are special notches on the underside of the nut and during installation it is necessary to use a nut with the same notches.
24 - bolt with combined head M12x1.5x100,
When installing, a new bolt must be used.
25 - lower front transverse arm,
26 - bolt with combined head M12x1.5x105, 110 Nm + tighten by 90°,
When installing, a new bolt must be used.
27 - hex head bolt M10x70, 70 Nm,
When installing, a new bolt must be used.
28 - self-locking knurled nut, 100 Nm,
When installing, a new nut must be used.
Attention. There are special notches on the underside of the nut and during installation it is necessary to use a nut with the same notches.
29 - clamp,
The clamp is mounted on the lower front transverse arm.
30 - lower front frame,
Attention. Do not lift the vehicle by the lower front frame.
31 - hex head bolt M8x25, 25 Nm,
32 - support plate of the lower front frame,
33 - self-locking nut, 80 Nm + tighten by 90°,
When installing, a new self-locking nut must be used.
34 - self-locking nut, 90 Nm + tighten by 90°,
When installing, a new self-locking nut must be used.
35 - bolt,
Tightening torques:
- Bolt M8x48 - 40 Nm;
- Bolt M10x48 - 80 Nm.
36 - plate,
37 - drive shaft with constant velocity joints,
38 - drive shaft with a three-arm hinge,
39 - bolt M10x20, 80 Nm, It is used for fastening wire shafts with a three-arm joint.
40 - hex bolt, М10x62,
When installing, a new bolt must be used.
41 - bracket for the upper support of the front suspension,
42 - self-locking nut, 50 Nm + tighten by 90°,
When installing, a new self-locking nut must be used.
43 - self-locking nut, 20 Nm. When installing, a new self-locking nut must be used.
Visitor comments