15.2 Front axle faults
FRONT AXLE FAULTS
| Fault | Cause | Remedy |
|---|---|---|
| 1. Toe deviation | a) Vehicle not in normal position | a) Correct height level |
| b) Tie rod(s) bent | b) Replace tie rod(s) | |
| c) Tie rod ball joints worn | c) Replace tie rod(s) | |
| d) Rubber mount in control arm defective | d) Replace control arm | |
| 2. Camber deviation: The camber is fixed during the design stage and cannot be adjusted. | a) Rubber mount in control arm defective | a) Replace control arm |
| b) Control arm deformed | b) Replace control arm | |
| c) Spring strut deformed | c) Replace spring strut | |
| d) Traction strut worn | d) Replace control arm | |
| e) Spring deflection too great | e) Replace coil spring, height level | |
| f) Front axle carrier deformed | f) Replace front axle carrier | |
| g) Spring strut mount deformed | g) Repair forward structure | |
| h) Distortion in the floor assembly (engine bracket) | h) Repair body | |
| 3. Castor deviation: The castor is fixed during the design stage and cannot be adjusted. | a) Rubber mount for tension / traction strut defective | a) Replace rubber mount |
| b) Tension / traction strut deformed | b) Replace tension / traction strut | |
| c) Control arm deformed | c) Replace control arm | |
| d) Spring strut deformed | d) Replace spring strut | |
| e) Wheelhouse deformed (spring strut mount) | e) Repair forward structure | |
| f) Distortion in the floor assembly (engine bracket) | f) Repair body | |
| 4. Toe-differential angle deviation | Requirement: camber and castor are correct | |
| a) Tie rods unevenly adjusted | a) Set wheel toe on left and right to identical values | |
| 5. Wheel displacement deviation | Requirement: Front wheels have same single toe in relation to the geometrical axis | |
| a) Front axle carrier deformed | a) Replace front axle carrier | |
| b) Engine bracket deformed | b) Repair body | |
| c) Control arm deformed | c) Replace control arm | |
| d) Tension / traction strut deformed | d) Replace tension / traction strut |