VW Passat B5

since 1996 release

Repair and operation of the car



Foltsvagen Passat B5
+ Maintenance instruction
+ 1. Maintenance
+ 2. Engines
+ 3. Cooling system
+ 4. Fuel system
+ 5. Engine management
+ 6. Exhaust system
+ 7. Transmission
- 8. Running gear
   + 8.1.2. Depreciation rack
   - 8.2. Back suspension bracket
      8.2.2. Unscrewing of the top fastening of the shock-absorber
      8.2.3. Removal and installation of the shock-absorber and spring
      8.2.4. Removal and installation of bearings/naves of back wheels
      + 8.2.5. Depreciation rack of all-wheel drive cars
      8.2.6. Check of the shock-absorber
      8.2.7. Utilization of the shock-absorber
   + 8.3. Wheels and tires
+ 9. Steering
+ 10. Brake system
+ 11. Body
+ 12. Heating, ventilation
+ 13. Electric equipment






8.2.6. Check of the shock-absorber

GENERAL INFORMATION

Check of smoothness of movement of a rod of the shock-absorber


External manifestations which testify to malfunction of the shock-absorber:

  – long rocking of a body at the movement on an uneven paving;
  – the increasing fluctuation of a body at the movement on an uneven paving;
  – the non-uniform and unstable motion of wheels (jumping) at the movement in the certain range of speeds, including on turns;
  – a deviation from the set trajectory of the movement of the car when braking;
  – unstable passing of turns and drift of the car;
  – the increased wear of tires which is characterized by deleting of the drawing of tires;
  – emergence of clicks and extraneous noise at the movement of the car. Clicks and easy blows can be also the reasons of other malfunctions of a suspension bracket, in particular, the weakened threaded connections, failure of bearings of naves or worn-out hinges of equal angular speeds of power shafts.

Check of a condition of the shock-absorber can be made manually or from an ispolzov niy the special equipment.

For check remove the shock-absorber from the car.

Check on all length of a rod of the shock-absorber for lack of pointed corrosion. Check the shock-absorber case for lack of mechanical damages. Install the shock-absorber in vertical position and check its work, moving a shock-absorber rod at full capacity. Also check operation of the shock-absorber, moving a shock-absorber rod up and down on distance of 50-100 mm. In all cases the rod of the shock-absorber has to move smoothly with a notable resistance. If the rod of the shock-absorber moves with breakthroughs or there are mechanical damages, the shock-absorber is subject to replacement, see rice. Check of smoothness of movement of a rod of the shock-absorber.

At the gas-filled shock-absorber the rod of the shock-absorber can spontaneously move forward from the shock-absorber. If there is no spontaneous promotion of a rod from the shock-absorber, it does not testify to malfunction of the shock-absorber. In this case the operating mode of the gas-filled shock-absorber corresponds to an operating mode of the hydraulic shock-absorber. The shock-absorber performs the functions and without the excessive pressure of gas, but at the same time additional noise when moving the piston of the shock-absorber can appear.

Check the shock-absorber for signs of leak of depreciation liquid. Small leak of oil at preservation of normal operability of the shock-absorber is allowed. If the spot of the liquid which flowed out from the shock-absorber reaches only the lower support of a spring, then it is considered the normal phenomenon. At an insignificant effluence of liquid from the shock-absorber there is also a lubricant of a sealing ring of a rod of the shock-absorber that increases the term of its service.

In the presence of strong leak of liquid from the shock-absorber, the shock-absorber needs to be replaced.

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