Audi A3

since 1997 of release

Repair and car operation

Audi A3
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ the Power supply system and production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
- Suspension bracket and steering
   + Forward suspension bracket
   - Back suspension bracket
      Removal and shock-absorber and spring installation
      Removal and installation of the bearing of a wheel/knot of a nave
      Shock-absorber check
      Shock-absorber utilization
   + Steering
+ Body
+ Onboard electric equipment
+ Elektroskhema

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Back suspension bracket


Back suspension bracket assembled

2–screw spring
3–beam of a back suspension bracket
4–top support of a spring
5–shock-absorber support
6–compression buffer
7–brake disk
8–wheel bearing
9–stabilizer of cross-section stability
10-rezinometallichesky bearing
11-cable of the parking brake

Elements of a back suspension bracket. Models with a forward drive


In the presence of damage hydraulic a rezinometallichesky support – 13–it is necessary to replace in a set a beam – 14–(work HUNDRED).

1–brake disk
2–a dvenadtsatigranny nut with a fillet, 175 N • m. Being self-stopped, surely replace.
3–cap. Surely replace. Since 4/97 releases, caps have a covering a tight varnish of green color. Earlier caps should be inserted on hermetic.
4–the screw with a crosswise shliyets, 4 N • m
5–bolt of fastening of a wheel, 120 N • m
6–a nave with the wheel bearing
7–bolt, 60 N • m
9–bolt. Surely replace.
10-bolt, 30 N • m + 90 ° (1/4 turns). Surely replace.
11-support. For removal of a back suspension bracket whenever possible do not turn on. If the support was disconnected, it is necessary to regulate disorder.
12-nut, 80 N • m. Surely replace. Load a car luggage carrier with cargo of 100 kg and tighten a nut on the car standing on wheels.
13-support rezinometallichesky or hydraulic rezinometallichesky support
14-suspension bracket beam
15-top basic ring rubber
16-spring screw
17-zinc laying
18-bolt, 60 N • m. Surely replace.
20-bolt, 30 N • m + 90 ° (1/4 turns). Surely replace.
21-the screw with an internal shestigrannik, 8 N • m
22-ABS sensor
23-nut. Surely replace.
25-the screw with an internal shestigrannik, 65 N • m. Surely replace.

The back suspension bracket consists of two longitudinal levers with a connecting beam. Before a beam of V-of a figurative profile there is a stabilizer of cross-section stability which reduces a car inclination on turns and, thereby, stabilizes its situation. The back suspension bracket through rezinometallichesky support is connected with a body. Amortization of the car is carried out by two screw springs and two shock-absorbers. Springs and shock-absorbers are located separately that increases width of cargo volume.

Dual ball-bearings of back wheels do not demand leaving and adjustment.

Cars with a full drive have an independent back suspension bracket with dual cross-section levers and longitudinal balance weights.

For transfer of a torque the driveshaft, the main transfer and two power shafts are established.
Measurement of geometry of a back suspension bracket possibly only with application of optical methods.

Carrying out welding and leveling works on bearing and directing elements of a back suspension bracket is not allowed. Being self-stopped nuts, and also bolts/nut with corrosion traces surely replace.