| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
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| First of all check the type, state and inflation pressure of the tyres. Check that the tyres are correctly fitted and the wheels correctly fastened | 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 |
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| Check:- That the wheels are correctly balanced;- That the wheels turn freely (brake calipers correctly fitted) | Move on to Step 2 | 1. Wheels not balanced2. Front brake calipers not correctly fitted3. Rear brake calipers 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. Restore the correct fitting or replace the brake calipersOp. 3310B36 |
| 2 | FRONT GEOMETRY CHECK | All OK | Problems encountered | Operation |
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| 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 |
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| 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 |
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| 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 |
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| 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 2. Replace the wheel hub bearing Op. 4450D10 HUB FOR ONE REAR WHEEL, L/H OR R/H - R+R WITH WHEEL REMOVED - CHECK WHEEL GEOMETRY SEPARATELY |
| 6 | BUSHES AND FLEXIBLE MOUNTINGS CHECK - FRONT AREA | All OK | Problems encountered | Operation |
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| Check the condition of the bushes and mountings. In order:- steering box rods;- wishbone 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 supports Op. 4410B FRONT SUSPENSION TRACK CONTROL ARMS 3. Replace the mountings |
| 7 | POWER UNIT SUPPORT MOUNTINGS CHECK | All OK | Problems encountered | Operation |
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| Check the condition of the mountings for the power unit, the engine reaction rod connected to the mechanical crossmember and that the mechanical crossmember is correctly centred | Move on to Step 8 | 1. Power unit support mountings faulty2. Reaction connecting rod faulty3. 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 |
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| 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 |
