Check shock absorber - AR32.25-P-0121TX

MODEL 219 except CODE (489) Airmatic (semi-active air suspension) 

Fig 1: Checking Shock Absorber

Courtesy of MERCEDES-BENZ USA

	Check
1	Check piston rod for surface damage, bending and smooth running in pilot bushing	Dispose of shock absorber after testing if necessary:
		Disposal by workshop Disposal by scrap dealer: ↓	OS32.25-P-0121-01TX
		Notes on scrapping gas-filled hydraulic components	OS00.00-P-1000-01A
2	Check rubber bushings in body eye	The rubber bushings must be seated securely in the body eye and must not be cracked or damaged. If fitted, damaged rubber bushings can cause knocking noises.
3	Check shock absorber for internal leakage	The volume of oil in the shock absorber is determined by means of the projection length (a) of the piston rod. Push piston rod all the way in, align vertically downwards and measure projection length (a) at piston rod. Front shock absorber: Shock absorber (new)	*BE32.25-P-1001-02C
		Shock absorber (used) Rear shock absorber:	*BE32.25-P-1001-02C
		Shock absorber (new)	*BE32.25-P-1002-02C
		Shock absorber (used)	*BE32.25-P-1002-02C
		If shock absorber exceeds specified value, dispose of it:
		Disposal by workshop	OS32.25-P-0121-01TX
		Disposal by scrap dealer: ↓
		Notes on scrapping gas-filled hydraulic components	OS00.00-P-1000-01A
4	Check damper for external oil leaks	A thin film of oil on the shock absorber is permissible. Dispose of shock absorber after testing if necessary:
		Disposal by workshop	OS32.25-P-0121-01TX
		Disposal by scrap dealer: ↓
		Notes on scrapping gas-filled hydraulic components	OS00.00-P-1000-01A