Wheel alignment

Wheel Alignment

Four wheel alignment using a laser machine.

MB guide to effective wheel alignment.

Trackace DIY laser wheel alignment tracking gauge (~100 EUR) is a cheap, simple and precise measurement tool to measure front wheel's toe-in/toe-out.

According to W220 specifications, the front wheels should have toe in of 0° 15'(± 10').

Adjust:

Switch off easy entry/exit for driver seat and steering wheel. Otherwise the driver seat and steering wheel move into a different position if the driver door is opened or closed for example. The upper frame may be damaged when the holding device (055) is installed. Switching off takes place via the buttons on the steering wheel in the "comfort" menu of the multifunction display.
Swivel sun visor to one side and fix steering wheel in center position using retainer (055). Carefully mount retainer (055), in order to avoid damaging the steering wheel or the headliner.
Check center position of steering gear and steering wheel. The steering gear is centered when the marking on the cap is aligned with the mark on the control valve housing. If necessary, shift steering wheel.
Install wheel spreader (030) at the front in the direction of travel on the inside of the wheel (in the direction of travel). The elastic bearing of the transverse control arm and steering linkage produces a correspondingly large toe value that is reduced to the correct dimension in the ready to-drive condition.
Counterhold tie rod (10) at the hexagon and loosen jam nut (10f).
Rotate the tie rods (10) to adjust the toe angle.
Tighten jam nut (10f)
Remove retainer (055).
Remove wheel spreader (030).
Check bellows for twisting and align if necessary.

Front axle toe check values: 0° 15'(± 10')

Torque spec:

Shown on model 220 without 4MATIC

Shown on model 220 with 4MATIC

Shown on model 220 without 4MATIC