Mercedes-Benz B-Class Quiz
Suspension - axles - geometry

Geometry specifications

In this manual: Suspension - axles - geometry
Operator's Manual - Mercedes-Benz B-Class — 194Airbags and belt tensioners — 9Diesel engines — 22Electrical equipment — 6Automatic transmission — 5Manual gearbox — 5Brakes — 12Heating - air conditioning — 13Suspension - axles - geometry — 7Vehicle specifications and identification — 7Driveshafts — 4Steering — 6Clutch — 4Body — 18
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PRELIMINARY CHECKS

Before checking or adjusting the wheel alignment angles, check the following points:

  • tires: conformity, inflation pressure and condition.
  • wheels: runout, rough alignment (visual).
  • joints: condition, tightness.
  • steering universal joints: condition, tightness.
  • suspension: shock absorber condition, ride height.
  • hubs: wheel bearing play.
  • steering rack centered at its zero point.

If faults are found during these checks, correct them before carrying out any adjustment work.

VEHICLE HEIGHT

Front axle ride height

Except sport suspension (code 486) and AMG Sport suspension (code 486) and AMG
In ' 5,37' ' 1,5 4,3' ' 1,5
In mm 15 ' 10 4 ' 10
Permissible difference in vehicle height between the 2 sides of the front axle during inspection 1'
during setting 0,5'

Rear axle ride height

Except sport suspension (code 486) and AMG Sport suspension (code 486) and AMG
In ' 3,85' ' 1,5 2,2' ' 1,5
In mm 24 ' 10 11 ' 10

GEOMETRY VALUES

FRONT TOE (ADJUSTABLE)

Toe-in: 0' 12' ± 10'.

REAR TOE (NON-ADJUSTABLE)

Rear axle ride height Rear axle total toe
(in ') (in mm)
9,1 61,70 - 0' 13 '
8,3 55,96 - 0' 10 '
7,5 50,22 - 0' 07 '
6,7 44,48 - 0' 04 '
5,9 38,74 - 0' 01 '
5,1 33,00 0' 01'
4,3 27,26 0' 04'
3,5 21,52 0' 07'
2,7 15,78 0' 09'
1,9 10,04 0' 11'
1,1 4,30 0' 14'
0,3 - 1,43 0' 16'

Total toe tolerance: 12' / -8'.

Partial toe tolerance: 6' / -4'.

Ride height values are displayed in decimal degrees (') by the electronic ride height measuring device.

Measuring the toe value

Measure the rear axle ride height, then read the corresponding toe value from the table.

Example: rear axle ride height (3.5') = toe of 0' 07'.

FRONT CAMBER (ADJUSTABLE)

Carrossage AV (réglable)

Camber tolerance: ± 20'.

Maximum camber difference between right and left sides: 0' 20'.

Ride height values are displayed in decimal degrees (') by the electronic ride height measuring device.

Measuring the camber value

Measure the front axle ride height, then read the corresponding camber value from the table.

Example: front axle ride height (2.9') = camber of -0' 42'.

REAR CAMBER (NON-ADJUSTABLE)

Camber: -1' 30' ± 30'.

FRONT CASTER (ADJUSTABLE)

Caster tolerance: ± 30'.

Permissible caster difference between right and left sides: 0' 30'.

Ride height values are displayed in decimal degrees (') by the electronic ride height measuring device.

Measuring the caster value

Measure the front and rear axle ride heights, then read the corresponding caster value from the table.

Example: front axle ride height (2.9') and rear axle ride height (3.5') = caster of 3' 25'.

Caractéristiques des trains

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