Install repair bolt - AR40.20-P-0322-01SX

Camber, model 221 without 4MATIC shown without code (Z07) Top protection

Fig 1: Camber Adjusting Diagram

Courtesy of MERCEDES-BENZ USA

Caster, model 221 without 4MATIC shown without code (Z07) Top protection

Fig 2: Caster Adjusting Diagram

Courtesy of MERCEDES-BENZ USA

REPAIR BOLT TO SPRING CONTROL ARM

Spring control arm in direction	Torque strut in direction	Camber (negative)	Delayed-off running
a (inward)	no change	Camber decreases by approx. +18'	Caster decreases by approx. - 27'
b (outwards)	no change	Camber increases by approx. - 18'	Caster increases by approx. +27'

REPAIR BOLT TO TORQUE STRUT

Spring control arm in direction	Torque strut in direction	Camber (negative)	Delayed-off running
no change	a (inward)	Camber decreases by approx. +4'	Caster increases by approx. +30'
no change	b (outwards)	Camber is larger by approx. - 4'	Caster is smaller by approx. - 30'

REPAIR BOLT TO SPRING CONTROL ARM AND TORQUE STRUT

Spring control arm in direction	Torque strut in direction	Camber (negative)	Delayed-off running
a (inward)	b (outwards)	Camber decreases by approx. +12'	Caster is smaller by approx. - 60'
b (outwards)	a (inward)	Camber is larger by approx. - 12'	Caster increases by approx. +60'
a (inward)	a (inward)	Camber decreases by approx. +22'	Caster increases by approx. +3'
b (outwards)	b (outwards)	Camber is larger by approx. - 22'	Caster is smaller by approx. - 3'

Jack up vehicle at the front (the suspension must be fully rebounded).
Remove series bolt (19a) with nut (19f) on spring control arm (17).
For camber correction.

Shown on model 221 without 4MATIC, without code (Z07) Highest protection

Fig 3: Identifying Spring Control Arm, Bolt And Nut (Shown On Model 221 Without 4Matic, Without Code (Z07) Highest Protection)
Courtesy of MERCEDES-BENZ USA
Remove standard bolt (19a) with nut (19f) to torque strut (18).
For caster correction.

Shown on model 221 without 4MATIC, without code (Z07) Highest protection

Fig 4: Identifying Torque Strut, Bolt And Nut (Shown On Model 221 Without 4Matic, Without Code (Z07) Highest Protection)
Courtesy of MERCEDES-BENZ USA

Model 221 without code (Z07) Highest protection

4.1 To adjust the camber and caster, replace each standard bolt connection (A) to the torque strut (18) or spring control arm (17) with a repair bolted connection (B).

Fig 5: Identifying Repair Bolt, Shims And Repair Kit Nuts - Model 221 Without Code (Z07) Highest Protection
Courtesy of MERCEDES-BENZ USA

The standard bolt (19a) is centered by lock tabs in the front axle carrier. Inserting the graduated disks (19d) onto the lock tabs, enables the repair bolt (19c) to be installed through the groove on the right or left.

The repair bolt (19c) may not be turned after fixing.

Otherwise the lock tabs in the front axle carrier may be damaged. Do not yet tighten nut (19b) to enable the rubber mount on the torque strut (18) or of the spring control arm (17) to rotate when the vehicle is rocked to settle the suspension.

Model 221 with code (Z07) Highest protection
4.2 To adjust the camber and caster, replace each standard bolted connection (A) to the torque strut (18) or spring control arm (17) with a repair bolted connection (C).

Fig 6: Identifying Standard Bolt, Shims And Nuts - Model 221 With Code (Z07) Highest Protection
Courtesy of MERCEDES-BENZ USA

For adjustment operations, the shims with centric bore (19e) must be replaced with adjusting disks with eccentric bore (19g).

The standard bolt (19a) may not be turned after adjustment. Otherwise the adjustment tabs on the front axle carrier may be damaged. Screw on the nut (19f) until it abuts, but do not tighten yet so that the rubber mount of the torque strut (18) or spring control arm (17) can twist when rocking the vehicle to settle the suspension.