Perform chassis alignment

AR40.20-P-0200RT

Perform chassis alignment

5.4.05



Measure, adjust



Observe general information on chassis alignment

AR40.20-P-0201RT

1

Drive the vehicle onto the measuring area, move the selector lever into position "P" and apply the parking brake

 The measuring system must be approved by Mercedes-Benz.

 The front wheels must be positioned centrally on the turntables, adjust the turntables to the track width of the vehicle if necessary. Do not turn the steering.

 Adjust the sliding plates for the rear axle if necessary to the track width and the wheel base of the vehicle.

2.1

Select the normal tuning via the adaptive damping system switch in the center console

 Vehicles with AIRmatic (air suspension with level adjustment and adaptive damping system ADS), code 489.

 Both indicator lamps in the adaptive damping system switch are out.

 See Operator's Manual.

3.1

Switch off easy entry/exit function for driver seat and steering wheel

 Vehicles with memory package (driver seat, steering column, mirrors) code 275.

AR54.30-P-1000-02RT

 Otherwise the driver's seat and steering wheel move to a different position, e.g. when the driver door is opened/closed. The seat may be damaged if the brake pedal winch is installed.

 Switching off takes place via the buttons on the steering wheel in the "Comfort" menu of the multifunction display, see also operator's manual.

4

Move the driver door window downwards to the full extent

 Preparations for checking steering lock.

5.1

Disembark and raise the vehicle level from outside and lower it again; to do this, press the vehicle level switch on the center console

Vehicles with AIRmatic (air suspension with level adjustment and adaptive damping system ADS), code 489.

 Raising and lowering the vehicle reduces play in the suspension.

 After raising and lowering, the normal tuning must be selected again (both indicator lamps in the adaptive damping system switch are out), see also operator's manual.

 The vehicle must not be loaded again.

6

Switch off ignition and remove the transmitter key from the EIS [EZS] control unit

 On vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m).

7

Insert the brake pedal jack (1) with adapter for brake pedal jack (1) between the brake pedal and driver seat

 Protect the brake pedal and driver seat from damage.

 Do not load the vehicle.

 Brake pedal jack

*000589183100

 Adapter for brake pedal winch

*211589003100

8

Close front door

9

Attach quick-clamping devices to the wheels

AR40.20-P-0230RT

10

Mount measuring heads

11

Unlock rotary plates and sliding plates of measuring platform

12

Check vehicle level at front and rear axle with electronic inclinometer and adjust if necessary

AR40.20-P-0301RT

 Electronic inclinometer (CM 09606)

*WE58.40-Z-1002-15A

 Electronic inclination / propeller shaft inclinometer

*WE58.40-Z-1004-15A

13

Transfer the values for vehicle level manually or by means of data cable to the measuring system

 See also operator's manual for the measuring system used and the inclinometer used.

 Electronic inclinometer (CM 09606)

*WE58.40-Z-1002-15A

 Electronic inclination / propeller shaft inclinometer

*WE58.40-Z-1004-15A

14

Perform initial measurement

 See also operator's manual for the measuring system used and the inclinometer used.

15.1

Check and adjust rear-axle camber

 According to results of initial measurement.

AR40.20-P-0331RT

16.1

Check and adjust toe-in of rear axle

 According to results of initial measurement.

AR40.20-P-0332RT

17.1

Check and adjust camber and caster at front axle

 According to results of initial measurement.

AR40.20-P-0322RT

18.1

Check toe-out on turns

 According to results of initial measurement.

AR40.20-P-0325RT

19.1

Check and adjust front axle toe

 According to results of initial measurement.

AR40.20-P-0323RT

20

Perform final measurement

 See also operator's manual for the measuring system used and the inclinometer used.

21

Detach measuring heads

22

Detach quick-clamping devices from the wheels

AR40.20-P-0230RT

23

Remove brake pedal jack (1) with adapter for brake pedal jack (1)

 Brake pedal jack

*000589183100

 Adapter for brake pedal winch

*211589003100

24.1

Activate entry/exit aid for driver seat and steering wheel

On vehicles with memory package (driver seat, steering column, mirrors), code 275 and if the easy entry/exit for the driver seat and steering wheel was activated before the chassis alignment.

AR54.30-P-1000-02RT

25

Drive vehicle off measuring system

26

Lock turntables and sliding platforms

WE58.40-Z-1002-15A

Electronic clinometer

WE58.40-Z-1004-15A

Electronic combination measuring instrument