The rear shock absorber for the Mercedes A-Class W177 sports suspension package is a twin-tube damper with progressive valving. A worn rear shock causes excessive bounce, reduced cornering stability and premature tyre wear. Sold individually — recommend replacing both sides.

1. 1
2. Raise vehicle and remove rear wheel
3. 2
4. Remove lower shock bolt from trailing arm
5. 3
6. Remove upper shock nut from inner arch
7. 4
8. Remove shock
9. 5
10. Install new shock
11. 6
12. DO NOT torque until vehicle is at ride height
13. 7
14. Lower vehicle fully
15. 8
16. Torque lower bolt 100Nm, upper nut 25Nm.