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Home >> Mercedes Benz >> 2021 >> GLB250 4Matic >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Wheels, Chassis Alignment Check - 247 Chassis >> Testing & Repair >> Establish Preconditions And Perform Checks For Wheel Alignment Measurement - AR40.20-P-0304-01MFA

Establish Preconditions And Perform Checks For Wheel Alignment Measurement - AR40.20-P-0304-01MFA

Model 118, 177, 243, 247 

    Assign suspension data Model 243 AR40.20-P-0203QA
    Assign suspension data Model 247 AR40.20-P-0203MB 
    Assign suspension data Model 177 AR40.20-P-0203MFA
    Assign suspension data Model 118 AR40.20-P-0203MFI
REFER TO MAINTENANCE Check tires for damage and crack formations Model 243 AP40.10-P-4051EQ
REFER TO MAINTENANCE Check tires for damage and crack formations Model 118, 177, 247 AP40.10-P-4051EW 
REFER TO MAINTENANCE Correct tire pressure Model 243 AP40.15-P-4061EQ
REFER TO MAINTENANCE Correct tire pressure Model 118, 177, 247 AP40.15-P-4061A 
REFER TO MAINTENANCE Check vehicle underside in visible area for signs of damage, fluid loss and corrosion Model 243 AP60.00-P-0051O
REFER TO MAINTENANCE Check vehicle underside in visible area for signs of damage, fluid loss and corrosion Model 118, 177, 247 AP60.00-P-0051M
    Raise/lower vehicle with vehicle lift AR00.60-P-1006A
REFER TO MAINTENANCE Check condition of steering and tie rods Model 243 AP46.00-P-4651I
REFER TO MAINTENANCE Check condition of steering and tie rods Model 118, 177, 247 AP46.00-P-4651G
REFER TO MAINTENANCE Check condition of front axle and front axle ball joints Model 243 AP33.10-P-3358J
REFER TO MAINTENANCE Check condition of front axle and front axle ball joints Model 118, 177, 247 AP33.10-P-3358G
REFER TO MAINTENANCE Check condition of rear axle and rear axle ball joints Model 243 AP35.20-P-3552K
REFER TO MAINTENANCE Check condition of rear axle and rear axle ball joints Model 177, 247
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
AP35.20-P-3552G
REFER TO MAINTENANCE Check condition of rear axle and rear axle ball joints Model 118, 177, 247
with code U55 (Multi-link axle)
except code U54 (Compound-link axle)
AP35.20-P-3552H
REFER TO MAINTENANCE Check condition of suspension struts or shock absorbers and springs Model 243 AP32.25-P-3255M
REFER TO MAINTENANCE Check condition of suspension struts or shock absorbers and springs Model 118, 177, 247 AP32.25-P-3255P

Check 

  1. Check condition of vehicle.

    IMPORTANT For the wheel alignment check all vehicle parts must be installed and the vehicle build completed ready to drive. Do not load the vehicle. The specified values for the vehicle are provided based on the actual values determined by the dimensional check system. The specified tolerances of vehicle specified values are only for the test. If the vehicle is adjusted, the specified values should be aimed for.

  2. Print out form for wheel alignment measurement.

    If a visual wheel alignment measurement is performed.

  3. Check tires for wear pattern, tire tread depth and damage.
  4. Check rims for damage.
  5. Check tire pressure.

    If necessary, Correct tire inflation pressure.

  6. Check vehicle underside for damage, corrosion of suspension parts, chassis parts and supporting body parts, leaks from major assemblies and lines.
  7. Raise front axle and check wheel bearing play without dial indicator.
  8. Check condition of the steering mechanism.
  9. Check front axle joints for play and check dust boots for damage.
  10. Check rear axle joints for play and check dust boots for damage.
  11. Check condition of shock absorbers and springs.