Perform wheel alignment check - AR40.20-P-0200MCE

MODEL 451.3/4

with recording the vehicle level

	Measuring, adjusting
1	Check tire pressure, correct if necessary
			AP40.15-P-4061MCC
2	Perform initial measurement	Carry out measurements according to information provided by measuring device manufacturer. Perform measurements on unladen vehicle with fuel tank 90% full. Camber	*BE40.20-P-1001-06C
		Caster	*BE40.20-P-1002-06C
		Total toe at front axle	*BE40.20-P-1001-07B
		Toe-out angle with inner 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
3	Record vehicle level at front and rear axles using electronic inclinometer		AR40.20-P-0303MCC
4	Determine toe of front axle from the table		AR40.20-P-0322-11MCC
5	Adjust front axle toe		AR40.20-P-0323-02MCC
		Total toe at front axle	*BE40.20-P-1001-07B
		Jam nut at tie rod	*BA46.40-P-1002-01F
		Open-ended socket wrench	Figure
6	Perform final measurement	Camber	*BE40.20-P-1001-06C
		Caster	*BE40.20-P-1002-06C
		Total toe at front axle	*BE40.20-P-1001-07B
		Toe-out angle with inner 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
	Should after adjusting the front axle toe other values are still outside the tolerance range or the steering wheel is not on straight: ↓ Perform advanced chassis alignment		AR40.20-P-0250MCE
7	Calibrate steering angle sensor using diagnostic system
			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')
BE40.20-P-1001-06C	Camber	Max. difference left to right	0° 30'

CHECK VALUES FOR FRONT AXLE TOE

Number	Designation		Model 451.3/4
BE40.20-P-1001-07B	Total toe at front axle	∠ °	+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 inner wheel steered through 20°	∠ °	-1° 36' (± 0° 30')

INSPECTION AND SETTING DATA OF REAR AXLE CAMBER

Number	Designation		Model 450.3/4, 451.3/4, 452.3/4
BE40.20-P-1001-09U	Rear axle camber	∠ °	-2° 00' (± 0° 30')

CHECK VALUES FOR REAR AXLE TOE

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')

INSPECTION AND SETTING DATA OF FRONT AXLE CAMBER/CASTER

Number	Designation		Model 451.3/4
BE40.20-P-1002-06C	Caster	with 0° wheel toe	+7° 50' (± 0° 30')

TIE ROD

Number	Designation		Model 451.3/4
BA46.40-P-1002-01F	Jam nut at tie rod	Nm	50

Fig 1: Identifying Open-Ended Socket Wrench (450 589 01 09 00)

Courtesy of MERCEDES-BENZ USA