Drivetrain - Front Axle Grinding Noise Diagnosis

Date: July 2007

Order No.: P-B-33.20/030

Suspension

Group: 33

SUBJECT:
MODEL 171, 203 (except 4MATIC), 208, 209, 210 (except 4MATIC), 211 (except 4MATIC), 215, 219, 220 (except 4MATIC), 221 (except 4MATIC), 230
MODEL YEAR ALL

GUIDELINES FOR DIAGNOSING GRINDING NOISES FROM FRONT AXLE

Some wheel bearings returned to the Quality Evaluation Center (QEC) with warranty damage type "noisy," are found not defective after testing.

To properly diagnose and to help avoid misdiagnosis, follow the guideline in cases of noise perceived to be coming from wheel bearings.

Tire noise mistaken for wheel bearing noise is also addressed in the guideline.

Refer to the following WIS documents for adjusting wheel bearing play.

^ AR33.20-P-0300V, Model 171

^ AR33.20-P-0300A, Model 203 (except 203.08/09/28/29), 208, 209, 210 (except 210.08/28), 211 (except 211.08/09/28/29), 215, 220 (except 220.08/18), 230

^ AR33.20-P-0300TX, Model 219

^ AR33.20-P-0300SX, Model 221





Procedure Flow Chart