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Home >> Mercedes Benz >> 2021 >> GLB250 4Matic >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension - 247 Chassis >> Testing & Repair >> Checking Shock Absorber - AR32.25-P-0121MFA

Checking Shock Absorber - AR32.25-P-0121MFA

Model 118, 177, 243, 247 

DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
  Notes on repair work on suspension components   AH00.00-P-0100-01A
INSPECT Check     
1 Lift vehicle with vehicle lift.   AR00.60-P-1006A
2 Check front shock absorbers for leakage. IMPORTANT A light oil film on the shock absorber's piston rod is acceptable.
If a leakage is found,

Replace front shock absorbers.
 
      AR32.25-P-1018MFA 
3 Check rear shock absorbers for leakage. IMPORTANT A light oil film on the shock absorber's piston rod is acceptable.
If a leakage is found,

Replace rear shock absorbers.
 
      AR32.25-P-0110MFA 
4 Check elastomer bearings of rear shock absorbers. IMPORTANT The elastomer bearings must be seated with zero clearance in the housing eye and they may not be cracked or damaged.
If the elastomer bearings are damaged,

Replace rear shock absorbers.
 
    If no problems were detected and no further damage is suspected,

Conclude work and lower vehicle with vehicle lift.
AR32.25-P-0110MFA 
      AR00.60-P-1006A
REMOVING Remove     
5 Remove and disassemble front suspension strut. If damage is suspected which cannot be see in the installed condition. AR32.25-P-1018MFA 
    IMPORTANT Until the front shock absorber can be checked.  
6 Remove rear shock absorbers. If damage is suspected which cannot be see in the installed condition.  
      AR32.25-P-0110MFA 
INSPECT Check     
7 Check piston rod for surface damage, corrosion, bending and unobstructed movement in pilot bushings. When the shock absorbers are removed.
If a problem is detected,

replace shock absorbers.
 
      AR32.25-P-0110MFA 
      AR32.25-P-1018MFA 
INSTALLING Install     
8 Assemble and install front suspension strut. If removed and no problems were detected. AR32.25-P-1018MFA 
9 Install rear shock absorbers. If removed and no problems were detected. AR32.25-P-0110MFA