1663201313 Air Shock Absorber For Mercedes GL - Class X166 GL W166 166 320 13 13 Air Strut

2. Important tips to remember when installing a new unit
1) . Check the leveling valve, connecting rod and transmission parts for wear and damage and replace if necessary
Replace damaged parts if necessary.
2) . Check for leaks in the shock absorber and carry out a shock absorber test. Defective electric shock
Absorbers must be replaced.
After disconnecting the air line, check its entire length for cracks or other damage. Replacing
worn parts.
With the air spring removed, the other parts of the air suspension become more accessible. Checking
frame hangers, trailing arm bushings, torsion bars, trailing arms and
air spring mounts. If necessary, the parts should also be replaced.
3) . Check the bearings of the air spring bellows for external damage, deformation, sharp edges and that they are properly
tightened.
4) . Before installing the new unit, clean the air spring mounting plate to ensure proper connection to the
the suspension.
5) . Always use new attachment bolts when installing and observe the tightening torque. Never use
old bolts, as these may come off.
6) . Check the connecting rod of the levelling valve to ensure it is working properly. Under load, the connecting rod
should move up from the neutral position to the air inlet position. This allows air to enter the spring and
This will bring the arm back to the neutral position. This will open the exhaust valve and allow air
until the arm returns to the neutral position. Then check the driving level.