AR40.20-P-0301I Check Front & Rear Axle With Inclination Instrument and Adjust

Check Vehicle Level At Front and Rear With Electronic Inclinometer and Adjust As Necessary

Illustrated On Model Series 220 Without 4matic And With Airmatic: Measurement On Front Axle:

Shown On Model 220 With AIRMATIC Measurement On Rear Axle:

Shown On Model Series 220 With 4matic: Measurement On Front Axle:

Inspect
1 Prepare for chassis alignment check
2.1 Check vehicle level at the front axle via the spring link inclination
- Model Series 215, Model Series 220 without 4MATIC
- Clean test points on track control arm

CAUTION: The wire (086b) to the sensor (086a) must be toward the center of the vehicle to prevent spurious test data from being generated.

- Position the test sensor (086a) between the cast supports on the track control arm and store the test data.
- Measurement point 1 (left front)
- Measurement point 2 (right front)

2.2 Check vehicle level at front axle via wishbone inclination
- Model 220 with 4MATIC
- Clean test points on lower control arm.

CAUTION: The wire (086b) to the sensor (086a) must be toward the center of the vehicle to prevent spurious test data from being generated.

- Position the test sensor (086a) and store each of the recorded test results.
- Measurement point 1 (left front)
- Measurement point 2 (right front)

3 Check vehicle level at the rear axle via the rear axle shaft inclination.
- Clean measurement points on rear halfshaft.

CAUTION: The wire (086b) to the sensor (086a) must be toward the center of the vehicle to prevent spurious test data from being generated.

- Position the test sensor (086a) on the rear halfshaft and store each of the recorded test results.
- Measurement point 3 (left rear)
- Measurement point 4 (right rear)

NOTE:
- Observe maximum permissible difference in vehicle level between left and right sides of the vehicle
- The specified test tolerance applies only when checking the vehicle level and not for calibration.

4 Use STAR DIAGNOSIS to calibrate vehicle ride height

NOTE:
- Only if the vehicle level is outside the test tolerance.
- Do not set vehicle height at the ride-height sensor's control rod.
- Possible causes and remedies when the vehicle level is not OK after calibration:
- Attachment of level sensor is misshapen.
- Length of linkage rod to torsion bar (Model Series 220 with AIRmatic), spring or control arm is incorrect.
- Loose or bent attachment point for linkage rod on torsion bar (Model Series 220 with AIRmatic), for spring or for control arm.

5 Check and correct headlamp adjustment

NOTE: Only if the vehicle level was adjusted.