BMW 3 of the E46 series

since 1998 release

Repair and operation of the car

BMW 3 of the E46 series
+ BMW 3 Cars (E46)
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply systems, injection and release
+ Electric equipment of the engine
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
- Suspension bracket and steering
   - Forward suspension bracket
      Removal and installation of a depreciation rack
      Dismantling of a depreciation rack / removal and installation of a shock-absorber/spring
      Check of the shock-absorber
      Utilization of the shock-absorber
      Removal and installation of the bearing of a wheel
      Removal and installation of a beam of a forward suspension bracket
   + Back suspension bracket
   + the Steering with the hydraulic booster (servoupravleniye)
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment

Dismantling of a depreciation rack / removal and installation of a shock-absorber/spring

Depreciation rack. Top fastening

1 — a cover
2 — a nut of M14, 65 N • m
3 — an adapter
Execution only for bad roads (Eastern Europe)
4 — a nut of M8, 25 N • m
5 — a support
6 — a protective cuff
7 — a washer
8 — the top plate of a spring

9 — the top support of a spring
10 — a plastic spring
11 — a cover
12 — a spring
13 — the lower support of a spring
14 — the shock-absorber
15 — a nut
Execution only for bad roads (Eastern Europe)

Springs on one axis need to be replaced only parno and with the same number BMW. Number is put on the end of a spring.

When replacing it is necessary to install shock-absorbers only of one execution and identical execution. Designation is given in the sticker which is on a shock-absorber pipe. In the second line of a sticker number of the spare part, in the third line a code of execution of a running gear is specified: 4Z/6Z-Sport - the 4/6-cylinder engine a sports running gear. In the lower line costs R or L for the right or left shock-absorber respectively, at a look in the direction of the movement.


1 Remove a depreciation rack, address to the Section Removal and installation of a depreciation rack.

2 to remove the shock-absorber, it is necessary to squeeze a spring. The spring contracts by means of the adaptation, for example, of HAZET 4900. The specified adaptation needs to be clamped in a vice, as shown in an illustration. It is necessary to apply plastic linings of HAZET to protection of a surface of a spring.

Do not remove at all the shock-absorber if the spring is not squeezed.

Insert the adaptation for compression into spring rounds so that rounds were reliably captured and the adaptation could not slip out. The adaptation is under big loading therefore it is necessary to apply only the reliable tool. Do not squeeze the adaptation a wire at all. There is a danger of accident!

The adaptation should be squeezed only until the support is unloaded. Do not squeeze the adaptation against the stop at all, that is rounds of a spring should not concern each other.

3 Turn off a fastening nut a cap key, holding thus a rod from a provorachivaniye a face key.

The nut has the big moment of an otvorachivaniye. If necessary it is possible to shift a nut in blow of a hammer to a key. 1 – a dinamometrichesky key, 2 – the adaptation for compression, BMW-31-2-210.

4 Remove a support with a sealing ring and a washer.
5 Remove the top plate of a spring.
6 Take out the shock-absorber from a spring.

If it is necessary to replace only a spring, slowly weaken a spring. If it is necessary to replace only the shock-absorber, the spring has to remain squeezed.

7 Remove a plastic spring, a cover and the lower lining of a spring.


8 New spring has a sheeting against corrosion. Before installation check a sheeting of springs and if necessary restore it.
9 Check existence of damages of a cover. A plastic spring and linings under a spring. If necessary replace.
10 Enter the shock-absorber with the lower lining of a spring, a plastic spring and a cover into the squeezed spring.
11 Collect a depreciation rack. Watch that the spring adjoined to ledges of the lower and top plates of a spring.
12 Screw the new self-stopped nut aflush on a shock-absorber rod.
13 Slowly weaken a spring so that it adjoined to plates. Watch the correct provision of a lining of a spring (rectangular grooves).

14 Tighten a fastening nut the moment of 65 N • m, holding a rod from a provorachivaniye. HUNDRED applies a head of BMW-312210 or HAZET-2927 to observance of the moment of an inhaling.

15 Completely weaken a spring and remove the adaptation.
16 Establish into place a depreciation rack.