Mercedes r170 slk 230 320 Hood Shock Absorber strut engine lid lift support gas spring piston lifter Brand New Hood Shock for your SLK hood that won't stay up. Made by Stabilus, the gas-strut veterans. FITS: 170.447: (98-00): slk230 170.449: (01-01): slk230 170.465: (00-01): slk320