Shock Absorber For Mercedes-Benz Air Suspension Strut W221 S320 S350 S450 S500 Front Left 4matic 221

Shock Absorber For Mercedes-Benz Air Suspension Strut W221 S320 S350 S450 S500 Front Left 4matic 2213200438 A2213200438
 
Type:Air shock absorber
 
Model:for Mercedes-Benz W221 / S320 S350 S450 S500  4matic
 
Fitting position:front left
 
Warranty:12 monthes
 
Size:Normal As Original
 
Features:High quality
 
Certificate:ISO9001/TS16949
 
Sample:YES
 
Shipping:DHL/UPS/Fedex/EMS/TNT/by sea,etc
 
Main market:Global
 
OEM NO.
 
2213200438 A 221 320 04 38 A2213200438
2213205313 A 221 320 53 13 A2213205313
2213201738 A 221 320 17 38 A2213201738
 
This part is compatible with the below vehicles:
 

 

 
Other Products:
 

 
Suspension System
 
Every time he told us the shock absorber of automotive suspension. I always give the examples mentioned above, so far, most people also believe that in after a rebound to after a few iterations of the body can be stabilized, such a shock absorber effect is good. In fact this is wrong, when we press down the body and loose, in the spring force of the body to rebound, rebound after the rebound tends to stabilize the shock absorber effect is good. Why?
First to figure out what role the car shock absorber? Some people would say, of course, from the shock absorption effect. And then asked the shock absorber to what parts of the shock? You may answer, of course, to shock the body. In fact, the shock absorber to the spring shock, look at the following figure will understand!
In the automobile suspension, the shock absorber is always used in conjunction with the spring, when we press down a corner of the vehicle body, the actual compression is the spring, and the corresponding swing arm swing. When the car is behind, in the spring force of the body to rebound, when the shock absorber to rebound in the spring to play a damping effect, that is, after the rebound tends to be stable. If there is no shock absorber, the spring will rebound again after the rebound again, the performance of the body after a number of rebound stabilized. So the shock absorber is the spring of the automobile suspension in the rebound to play the role of damping shock.
The automobile hydraulic shock absorber is filled with special oil for shock absorber. The inside is divided into two cylinders: the reservoir and the working cylinder, and the piston divides the working cylinder into the upper chamber and the lower cavity. On the piston is provided with stretching valve and flow valve, used to control cavity and a lower cavity between the oil flow; the working cylinder chamber and an oil storage cylinder between the compression valve and valve compensation for the oil between the chamber and the oil storage cylinder flow.
When the shock absorber is compressed, the piston downward,