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Perform advanced wheel alignment - AR40.20-P-0250MCE

MODEL 451.3/4 

With recording of vehicle level 

  Measuring, adjusting     
1 Perform a wheel alignment check   AR40.20-P-0200MCE 
2 Remove underfloor panels Rechargeable drill/screwdriver  
3 Determine camber of front axle from the table   AR40.20-P-0322-02MCC
4 Determine caster of front axle from the table   AR40.20-P-0322-03MCC
5 Adjust camber or caster at the front axle   AR40.20-P-0322-06MCC
    Camber *BE40.20-P-1001-06C 
    Caster *BE40.20-P-1002-06C 
    TORQUE SPECIFICATION *BA33.10-P-1001-01D 
6 Adjust driveline angle on rear axle   AR40.20-P-0200-14MCC
    Driveline angle *BE40.20-P-1001-21A 
    TORQUE SPECIFICATION *BA35.10-P-1002-01F 
    TORQUE SPECIFICATION *BA35.15-P-1001-02C 
7 Determine toe of front axle from the table   AR40.20-P-0322-11MCC
8 Adjust front axle toe   AR40.20-P-0323-02MCC
    Front axle overall toe-in *BE40.20-P-1001-07B 
    TORQUE SPECIFICATION *BA46.40-P-1002-01F 
    SPECIAL TOOL Figure
9 Perform final measurement Camber *BE40.20-P-1001-06C 
    Caster *BE40.20-P-1002-06C 
    Front axle overall toe-in *BE40.20-P-1001-07B 
    Toe-out angle with inside wheel steered through 20° *BE40.20-P-1001-08C 
    Rear axle camber *BE40.20-P-1001-09U 
    Total rear axle toe *BE40.20-P-1001-10F 
    Driveline angle *BE40.20-P-1001-21A 
10 Install underfloor paneling    
11 Use STAR DIAGNOSIS to calibrate steering angle sensor    
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect up STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04MCC
INSPECTION AND SETTING DATA OF FRONT AXLE CAMBER/CASTER

Number Designation Model 451.3/4
BE40.20-P-1001-06C Camber with 0° wheel toe +0° 18' (± 0° 42')
Max. difference left to right 0° 30'
BE40.20-P-1002-06C Caster with 0° wheel toe +7° 50' (± 0° 30')
FRONT AXLE TOE CHECK VALUES

Number Designation Model 451.3/4
BE40.20-P-1001-07B Front axle overall toe-in ∠ ° +0° 36' (± 0° 10')
CHECK VALUES FOR TOE-OUT ANGLE

Number Designation Model 451.3/4
BE40.20-P-1001-08C Toe-out angle with inside wheel steered through 20° -1° 36' (± 0° 30')
INSPECTION AND SETTING DATA OF REAR AXLE CAMBER

Number Designation Model 450, 451, 452
BE40.20-P-1001-09U Rear axle camber ∠° -2° 00' (± 0° 30')
INSPECTION VALUES FOR TOE-IN AT REAR AXLE

Number Designation Model 451.3/4
BE40.20-P-1001-10F Total rear axle toe ∠° +0° 00' (± 0° 18')
TEST VALUES FOR DRIVELINE ANGLE

Number Designation Model 451.3/4
BE40.20-P-1001-21A Driveline angle ∠ ° +0° 0' (± 0° 24')
FRONT AXLE CARRIER

Number Designation Model 451.3/4 except 451.390/391/490/491
BA33.10-P-1001-01D Bolt, front-axle carrier to body Nm 100
REAR AXLE CARRIER

Number Designation Model 451.3/4
BA35.10-P-1002-01F Bolt, axle tube to frame-type integral support Nm 160
TRAILING ARMS, WISHBONES

Number Designation Model 451.3/4
BA35.15-P-1001-02C Bolt, bar-type link to axle tube Nm 90
TIE ROD

Number Designation Model 451.3/4
BA46.40-P-1002-01F Lock nut to tie rod Nm 50
Fig 1: Identifying Open-Ended Socket Wrench (450 589 01 09 00)
G10979380Courtesy of MERCEDES-BENZ USA