| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| First of all, check the type, condition and pressure of the tyres.Check that the tyres are fitted correctly and the wheels are correctly secured. | Move on to Step 1 | 1. Tyre inflation pressure not correct2. Tyres unsuitable or worn3. Tyres not correctly fitted4. Wheel not correctly fastened | 1. Restore the correct tyre inflation pressure2. Replace the tyres3. Swap the front wheels round4. Tighten the wheels correctly. |
| 1 | WHEEL CHECK | All OK | Problems encountered | Operation |
|---|
| Check:- That the wheels are correctly balanced;
- That the front wheels turn freely (front brake calipers correctly fitted)
- That the rear wheels turn freely (rear drums correctly fitted)
| Move on to Step 2 | 1. Wheels not balanced2. Front brake calipers not correctly fitted3. Rear drums not correctly fitted | 1. Balance the wheels2. Restore the correct fitting or replace the brake calipers Op. 3310A30 FRONT BRAKE CALIPER (ONE) - R.R 3. Refit the rear drums correctly or replace them Op. 3320B30 REAR BRAKE DRUM (ONE), LEFT OR RIGHT - R.R. |
| 2 | FRONT GEOMETRY CHECK | All OK | Problems encountered | Operation |
|---|
| Check the vehicle geometry and front wheel angles Op. 4450A10 FRONT WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT - INCLUDES ADJUSTMENT IF NECESSARY | Move on to Step 3 | 1. Geometry not correct2. Angles not correct | 1. Replace the suspension springs Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R 2. Restore the correct angles where possible |
| 3 | REAR GEOMETRY CHECK | All OK | Problems encountered | Operation |
|---|
| Check the vehicle geometry and rear wheel angles Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY | Move on to Step 4 | Geometry not correct. | Replace the suspension springs Op. 4420A40 L/H OR R/H REAR SUSPENSION COIL SPRING (ONE) - R+R |
| 4 | UNDERBODY CHECK | All OK | Problems encountered | Operation |
|---|
| Visually inspect the underbody.Check that there are no accidental knocks, dents or bent suspension arms. | Move on to Step 5 | Damage to the front suspension in particular. | Restore or replace the damaged components. |
| 5 | WHEEL BEARINGS CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition and the operation of the wheel hub bearings | Move on to Step 6 | 1. Front wheel bearing worn or damaged2. Rear wheel bearing worn or damaged | 1. Replace the wheel hub bearingOp. 4450C32 ONE FRONT WHEEL HUB BEARING, LH OR RH - REPLACE2. Replace the wheel hub bearingOp. |
| 6 | BUSHES AND FLEXIBLE MOUNTINGS CHECK - FRONT AREA | All OK | Problems encountered | Operation |
|---|
| Check the condition of the bushes and mountings.In the following order:- steering box rods;
- track control arm flexible supports;
- flexible mountings for anti-roll bar.
| Move on to Step 7 | 1. Steering box rods worn or damaged2. Wishbone supports worn or damaged3. Anti-roll bar mountings worn or damaged. | 1. Replace the rods Op. 4110B10 STEERING LINKS - R+R ON VEHICLE - CHECK TOE-IN/TOE-OUT SEPARATELY 2. Replace the supports3. Replace the mountingsOp. 4410C16 FRONT SUSPENSION STABILIZER BAR JOINT BUSHES - REPLACE |
| 7 | POWER UNIT SUPPORT MOUNTINGS CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the support mountings for the power unit and the engine reaction rod connected to the mechanical crossmember and also check that the mechanical crossmember is correctly centred. | Move on to Step 8 | 1. Power unit support mountings faulty.2. Reaction connecting rod faulty.3. Mechanical crossmember faulty. | 1. Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque. Op. 1008A POWER UNIT FASTENING 2. Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque. Op. 1008C POWER UNIT REACTION ELEMENTS 3. Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque. |
| 8 | DIFFERENTIAL CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the differential: make sure, in particular, that there is no clearance. | End of diagnosis | Irregular operation of the differential. | Overhaul or replace the differential Op. 2110D MANUAL GEARBOX DIFFERENTIAL |
