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Check Shock Absorber - AR32.25-P-0121A

MODEL 129 

MODEL 140 

MODEL 163.113/128/136/154/157/172/174/175 

MODEL 168 

MODEL 170 

MODEL 202 

MODEL 203 

MODEL 208 

MODEL 209 except CODE (P98) Black Series 

MODEL 210 except CODE (489) Airmatic (semi-active air suspension) 

MODEL 211.0/2/6 except CODE (489) Airmatic (semi-active air suspension) 

MODEL 414 

MODEL 230 

except CODE (487) Active Body Control (ABC) 

except CODE (P99) Special model "AMG Black Series" 

MODEL 164, 166, 251 except CODE (489) Airmatic (air suspension with level adjustment and adaptive damping system ADS) 

Shown on model 202 

G14135940Courtesy of MERCEDES-BENZ USA
INSPECT Checking     
1 Check piston rod for surface damage, bending and for moving in the guide bush without jamming When reusing shock absorber  
REFER TO FORMS   IMPORTANT Dispose of shock absorber if necessary.
IMPORTANT By workshop:
↓
Scrapping gas-filled shock absorbers		 OS32.25-P-1000-01A
REFER TO FORMS   IMPORTANT Disposal by scrap dealer:
↓
Notes on scrapping gas-filled hydraulic components		 OS00.00-P-1000-01A
2 Check damper for external oil leaks When reusing shock absorber  
REFER TO FORMS   IMPORTANT A thin film of oil on the shock absorber is permissible.
IMPORTANT Dispose of shock absorber if necessary.
IMPORTANT By workshop:
↓
Scrapping gas-filled shock absorbers		 OS32.25-P-1000-01A
REFER TO FORMS   IMPORTANT Disposal by scrap dealer:
↓
Notes on scrapping gas-filled hydraulic components		 OS00.00-P-1000-01A
3 Check shock absorber for internal leakage When reusing shock absorber
IMPORTANT Check not possible on model 140, 163, 164, 166, 168, 203, 209, 251, 414.
IMPORTANT The volume of oil in the shock absorber is determined by means of the projection length (a) of the piston rod.
IMPORTANT Push in piston rod as far as it will go. Then hold vertically so that piston rod points down, and measure projection length (a) of piston rod.		  
    Shock absorber in new condition:
Model 129, 170, 202, 208, 210, 211, 230		 *BE32.25-P-1001-02A 
    Shock absorber in used condition:
Model 129, 170, 202, 208, 210, 211, 230		 *BE32.25-P-1002-02A 
REFER TO FORMS   If shock absorber exceeds specified value, dispose of it:
IMPORTANT By workshop:
↓
Scrapping gas-filled shock absorbers		 OS32.25-P-1000-01A
REFER TO FORMS   IMPORTANT Disposal by scrap dealer:
↓
Notes on scrapping gas-filled hydraulic components		 OS00.00-P-1000-01A
4 Check rubber mount in housing eye, replace if necessary When reusing shock absorbers with rubber mounts in housing eye
IMPORTANT The rubber mounts must be seated securely in the body eye and must not be cracked or damaged.
Damaged or loose rubber mounts can cause thumping noises.		  
TEST VALUES FOR SHOCK ABSORBER

Number Designation Model 129 Model 170 Model 202
BE32.25-P-1001-02A Oil reserve check (shock absorber when new) mm 0+2 0+2 0+2
BE32.25-P-1002-02A Oil reserve check (shock absorber when used) mm ≤20 ≤20 ≤20
TEST VALUES FOR SHOCK ABSORBER

Number Designation Model 208 Model 210 Model 211
BE32.25-P-1001-02A Oil reserve check (shock absorber when new) mm 0+2 0+2 0+2
BE32.25-P-1002-02A Oil reserve check (shock absorber when used) mm ≤20 ≤20 ≤20
TEST VALUES FOR SHOCK ABSORBER

Number Designation Model 230
BE32.25-P-1001-02A Oil reserve check (shock absorber when new) mm 0+2
BE32.25-P-1002-02A Oil reserve check (shock absorber when used) mm ≤20
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