Wheel Alignment - Revised Camber Specification
85mercedes01TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE: March 1985 (Supersedes 40/50, January 1985) REF. NO. 40/50a
SUBJECT: FRONT WHEEL ALIGNMENT MODEL 201
The intermediate values for camber and caster were transposed in the examples table. The respective values remain the same. Please discard S.I. 40/50, January 1985.
A revised camber value is now in effect when inspecting the front wheel camber alignment on these models.
Wheel Alignment in Curb Weight Condition
Front wheel camber 0~ +10'
-20'
The tolerances indicated are only for inspecting the camber setting. The nominal value (0~) should be used if adjustment is necessary.
NOTE: The inspection and adjustment values for caster and toe-in remain unchanged. For additional details refer also to service microfiche Chassis Measurements, Model 201, Job No. 320.
Camber/Caster Calculating Disc
The model 201 Camber/Caster calculating disc ("Bestell Nr. [order no.] 6510 1205 40-9 1282"), distributed with the introduction of model 201 (M.Y. 1984), is no longer valid and should be discarded. It is not necessary to use a disc or chart if the mechanical caster gauge is used.
The mechanical caster gauge (tool no. 201 589 02 21 00) simplifies combined camber and caster adjustment with the wheels in the straight ahead position.
1. Adjust camber to the nominal value by turning eccentric bolt (19).
2. Adjust caster to the nominal value by turning eccentric bolt (20).
3. Re-check camber, readjust if necessary.
NOTE: If the caster setting deviates more than camber from the respective nominal value, proceed vice-versa and start by adjusting caster first.
The following charts, showing examples for camber and caster adjustment procedure, supersede the charts in the 1984 M.Y. Introduction Manual (section-model 201, page 48) and apply if the caster gauge is not used.
Examples for camber and caster adjustment procedure
Example Measured values "X . . ." Front eccentric bolt (19) Rear eccentric bolt
of wishbone bushing of wishbone bushing
to intermediate value "A . . ." to nominal value "B . . ."
camber caster camber caster camber caster
1 +0~ 45' 10~ 30' +0~ 08' 9~ 36' 0~ 10~ 10'
2 +0~ 30' 10~ 50' -0~ 04' 10~ 0~ 9~ 40'
Measuring Caster in Straight-Ahead Position of Wheels:
Adjusting example 1
Measuring caster in straight-ahead position of wheels
Measuring Caster with Wheels Turned to the Steering Stop:
Adjusting example 2
Measuring caster with wheels turned to the steering stop
Finding the intermediate values
1. Locate measured values of caster and camber (point "X") on the graph.
2. Draw a line downward and parallel to the long sides of the outlined rectangle (X toward A).
3. Locate the specified (nominal) values of caster and camber (point "B") on the graph.
4. Draw a line across and parallel to the short sides of the outlined rectangle (B toward A).
5. At the intersection of the two lines (point A"), read off the intermediate values for caster and camber.