Fitment:

Mercedes Benz S-Class W221  4Matic Four Wheel Drive layout
S350 Bluetec 4Matic Sedan 4-Door 3.0L 2012-2013    
S450 4Matic Sedan 4-Door 4.6L 2008-2011                
S550 4Matic Sedan 4-Door 4.6L 2012-2013                
S550 4Matic Sedan 4-Door 5.5L 2007-2011                
Mercedes Benz CL-Class C216  4Matic Four Wheel Drive layout
CL550 4Matic Coupe 2-Door 4.6L 2011-2013            
CL550 4Matic Coupe 2-Door 5.5L 2009-2010

Part Number:

2213200438,221 320 04 38,A2213200438,A221 320 04 38
2213205313,221 320 53 13,A2213205313,A221 320 53 13
2213201738,221 320 17 38,A2213201738,A221 320 17 38

221320173880,221 320 17 38 80,A221320173880,A221 320 17 38 80
221320173860,221 320 17 38 60,A221320173860,A221 320 17 38 60
221320173888,221 320 17 38 88,A221320173888,A221 320 17 38 88

221320043880,221 320 04 38 80,A221320043880,A221 320 04 38 80
221320043860,221 320 04 38 60,A221320043860,A221 320 04 38 60
221320043888,221 320 04 38 88,A221320043888,A221 320 04 38 88

221320531360,221 320 53 13 60,A221320531360,A221 320 53 13 60
221320531380,221 320 53 13 80,A221320531380,A221 320 53 13 80
221320531388,221 320 53 13 88,A221320531388,A221 320 53 13 88

Removal & Installation:
1. Set steering to straight ahead.
2. Raise the vehicle.
3. Remove front left or right wheel.
4. Locate the air strut's wiring block inside the wheel well.  Remove the metal retaining clip and the two(2)electrical plugs.
5. Cut the cable tie and remove the wiring bracket from the air strut.
6. Loosen and remove the lower mounting nut.
7. Separate the lower ball joint from the lower control arm.
8. Loosen and remove the air line from the top of the air strut.
9. Loosen and remove the three(3)top mounting nuts.
10. Remove the air strut from the vehicle.
11. Remove the offset plate from the top of the air strut.
12. Removal complete.
13. Installation is in reverse order of air strut removal.

Package Includes:
1 X Front Left Air Suspension Shock Strut