Wheel Alignment

Suspension alignment, complete

Wheel alignment

Notes Only check or adjust wheel alignment values when prescribed preconditions are met).

If the vehicle is measured front and rear, check and adjust the rear axle first. Nominal values are given in Adjustment values under Specifications.

After the adjustment, tighten the appropriate screwed connections with the prescribed tightening torque.

Rear axle
Prepare vehicle for checking and/or adjustment of wheel alignment values. Place front wheels on rotary table and rear wheels on rotary / sliding plates. Compress vehicle by approximately 25 mm 2-3 times and allow it to spring back freely.

Adjusting toe
After loosening the lock nut, turn eccentric A appropriately.

Adjusting camber





After loosening the lock nut, turn eccentric B appropriately.

Front axle
Adjusting camber





The camber is adjusted by moving the spring strut transversely. For this purpose, loosen the three fastening nuts on the spring-strut mount and, for the purpose of displacement, remove the covering cap on the piston rod.

Adjusting caster
The caster is not adjustable on standard vehicles. In the event of repairs, a caster adjustment facility can be installed if necessary. Refer to Control Arm, Service and Repair, Installing Caster Eccentric, for a description and for requirements.





On vehicles with a caster adjustment facility, adjust the caster by turning the special screw (A) with the fastening nut (C) loosened.
Values under Specifications.
Then tighten the fastening nut (C) to 160 Nm (118 ft. lbs.)

Adjusting toe
Preliminary work: Check whether the steering wheel is displaced with respect to the steering gear. To do this, center the steering gear as described below.

Turn wheels to the straight-ahead position.

Then readjust the front wheel alignment, if necessary, until pin No. 2 in driver No. 1 and the lug on the steering gear housing No. 4 line up.
No. 3 is the desired breaking point for pins in new steering gears. (New) pin No. 2 is inserted into driver No. 1 and lies with its underside within the recess of lug No. 4. This locks the steering gear in the center position. After installation of a new steering gear, the lower part of the pin is sheared off (at the desired breaking point No. 3) by turning the steering wheel. The upper part of the pin remains in the driver.





If necessary, reposition the steering wheel. When doing this, seek the best position.

Warning! A triggering of the airbag (malfunction in the airbag system) caused by improper work on airbag components cannot be ruled out!
In the case of such a malfunction, an unsuitable steering wheel holder could cause injury or damage!





> Use only steering wheel holders which do not project into the area of the airbag unit!
> Observe safety regulations when working with airbag vehicles!





Clamp steering wheel in center position with steering wheel holder.
Use only steering wheel holders which do not project into the area of the airbag unit! If necessary, shorten the guide rod (A) at top (arrow).

Then adjust toe at hexagon No. 2 of the track rod(s) after loosening the lock nut(s) No. 1. Then tighten the lock nut(s) No. 1 to the prescribed tightening torque.





If the tie rod lock nut(s) is(are) 21 mm across flats, use special tool 9625 in combination with a torque wrench to tighten.
The prescribed lock nut tightening torque of 50 Nm (37 ft. lbs.) corresponds to a setting on the torque wrench of approximately 35 Nm (26 ft. lbs.).

Toe-difference angle
The toe-difference angle is not adjustable.