Air Suspension Repair Kits for Mercedes W221 S-Class Front Left Right 2213209313 2213204913

OEM NO.
 
2213209313 A2213209313
2213204913 A2213204913
2213209313 A2213209313
2213200538 A2213200538
2213205413 A2213205413
2213200438 A2213200438
2213205313 A2213205313
2213201738 A2213201738
2213201838 A2213201838

Air Spring Air Bag Suspension parts
For Mercedes W221     
This part is compatible with the below vehicles:

Other products:

 

nspection and maintenance of automotive shock absorber:

In order to make the vibration of the frame and the body decays rapidly, improve vehicle ride comfort and comfort, automotive suspension systems are generally equipped with shock absorbers, two-way role of the shock absorber cylinder is widely used in the automobile.

Shock absorber is cars used in the process of wearing parts, shock absorber work is good or bad, will directly affect the driving stationarity and other parts of life, therefore, we should make the damper often in good working condition. The following methods can be used to test whether the work of the shock absorber is good.

1, to make the car in poor condition of roads on the road speed of 10 km after parking, touch the shock absorber shell, if isn't hot enough, no resistance in the shock absorber and shock absorber does not work. At this point, you can add the appropriate lubricating oil, and then the test, if the shell heat, then the shock absorber inside the lack of oil, should add enough oil; otherwise, the shock absorber failure.

2, press the bumper, and then release, if the car has 2 ~ 3 jump, then the shock absorber working well.

3, when the car is slow and emergency braking, if the car vibration is more severe, there is a problem that the shock absorber.

4, demolition under the shock absorber will the upright, and the lower end of the connecting ring clamped in a vise, pull hard pressure damping rod several times, at this time should have a stable resistance, to pull the restoration of resistance should be greater than the downward pressure resistance, such as resistance is not stable or no resistance may is shock absorber internal lack of oil or valve parts damaged, repair or replacement of parts.

In determining the shock absorber has a problem or failure, should first check whether the shock absorber oil spills or traces of old oil spills.

If oil is found, first tighten the oil cylinder head nut, if the shock absorber still leak may is an oil seal, gasket is damaged, should be replaced with a new seal. If you still can not eliminate oil leakage should be pulled out of the damping rod, if feel a hairpin or weight not only for a moment, and then further examination between the piston and cylinder gap is too large, a shock absorber piston connecting rod without bending, surface of the piston rod and the cylinder if there is a scratch or stretch marks.

If the shock absorber no oil leakage phenomenon, should check shock absorber connecting pin,

connecting rod, connecting hole, a rubber bushing etc. if there is damage, sealing off, rupture, or off the place. If the normal examination of the above, it should be further decomposed shock absorber, check the piston and cylinder with the gap is too large, the cylinder with or without strain, valve seal is good, valve flap and the valve seat fitting is tight, and shock absorber of