| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
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| Check the following, in order:- engine idle speed- that the tyres are the correct type, in good condition and correctly inflated- correct tightening of wheel bolts | Move on to Step 1 | Engine idle irregular | Proceed as instructed by the See table D010 ENGINE IDLE IRREGULAR |
| Tyre inflation pressure not correct | Restore the correct tyre inflation pressure |
| Tyres unsuitable or worn | Replace the tyres |
| Wheel bolts not correctly tightened | Tighten the wheel studs correctly |
| 1 | WHEEL CHECK Check: | All OK | Problems encountered | Operation |
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| - that the wheels are correctly balanced- the condition of the wheel rims (they should not show signs of dents or distortions) | Move on to Step 2 | Wheels not balanced | Balance the wheels correctly |
| Wheel rims dented or distorted | Replace the wheel rims |
| 2 | ENGINE FLEXIBLE MOUNTINGS CHECK | All OK | Problems encountered | Operation |
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| Check the condition and the centering of the engine frame, the engine flexible mountings and the engine side and gearbox side connecting rods | Move on to Step 3 | Engine flexible mountings faulty | Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque. Op. 1008A POWER UNIT FASTENINGS |
| Engine side and gearbox side connecting rods faulty | Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque. Op. 1008C POWER UNIT REACTION ELEMENTS |
| Engine frame faulty | Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque. Op. 4410D10 FRONT SUSPENSION FRAME - R+R |
| 3 | STEERING COLUMN CHECK | All OK | Problems encountered | Operation |
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| Check the condition of the steering column support and that it is working properly. In particular, check:- that there is no clearance between the support bushes and steering column- that the steering column joints are correctly tightened- the condition of the steering column supports and that they are working properly | Move on to Step 4 | Bushes worn or damaged | Restore the efficiency of the steering column. If necessary, replace the bearings involved Op. 4110A30 SUPPORT WITH STEERING CONTROL SHAFTS - R+R |
| Joint spider clearance too large | Tighten the bolts or replace the steering column Op. 4110A30 SUPPORT WITH STEERING CONTROL SHAFTS - R+R |
| Bearings worn or damaged | Restore the efficiency of the steering column. If necessary, replace the bearings involved |
| 4 | CHECK ON CONDITION OF FLEXIBLE MOUNTINGS AND BUSHES | All OK | Problems encountered | Operation |
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| Check the condition of the bushes and mountings. In the following order:- ball joints for steering box rods- bushes for upper and lower track control arms- anti-roll bar flexible mountings | Move on to Step 5 | Steering box rod ball joints worn or damaged | Replace the rods Op. 4110B10 STEERING LINKS - R+R ON VEHICLE - CHECK TOE-IN/TOE-OUT SEPARATELY |
| Bushes for upper or lower arms worn or damaged | Replace the upper track control arms Op. 4410B68 LOWER SWINGING ARM(ONE), LH OR RH OF FRONT SUSPENSION - R R -CHECK WHEEL ALIGNMENT SEPARATELY or the lower track control arms Op. 4410B40 LOWER TRACK CONTROL ARM (WITH BALLJOINT) FOR LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R - CHECK WHEEL GEOMETRY SEPARATELY |
| Anti-roll bar mountings | Replace the flexible mountings for anti-roll bar Op. 4410C12 FRONT SUSPENSION ANTI ROLL BAR JOINT (END) (ONE), LH OR RH - R.R |
| 5 | SPRING SHOCK ABSORBER ASSEMBLY CHECK | All OK | Problems encountered | Operation |
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| Check:- the condition of the shock absorbers and the springs and that they are working efficiently- the fastenings of the spring/shock absorber assembly | Move on to Step 6 | Tightening not correct | Renew the correct fastening |
| Shock abosrbers not working properly | Replace the shock absorber involved Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R |
| Springs not working properly | Replace the spring involved Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R |
| 6 | STEERING RODS AND ARMS CHECK | All OK | Problems encountered | Operation |
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| Check the condition of the steering rods and arms | Move on to Step 7 | Rods damaged or worn | Replace the rods Op. 4110B10 STEERING LINKS - R+R ON VEHICLE - CHECK TOE-IN/TOE-OUT SEPARATELY |
| Arms damaged or worn | Replace the steering box Op. 4130A15 POWER STEERING BOX R R WITH FRONT SUSPENSION FRAME REMOVED |
| 7 | INTERMEDIATE SHAFT DAMPER CHECK | All OK | Problems encountered | Operation |
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| Check that the intermediate shaft torsion damper is working properly | Move on to Step 8 | Torsion damper not working properly | Replace the intermediate shaft |
| 8 | STEERING WHEEL ADJUSTMENT DEVICE CHECK | All OK | Problems encountered | Operation |
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| Check the condition of the steering wheel adjustment deviceIn particular, check that the clearance between the device and the steering column is correct | Move on to Step 4 | Coupling with excessive clearance | Restore the efficiency of the steering wheel adjustment device. If necessary, replace it |
| 9 | TIMING CHECK | All OK | Problems encountered | Operation |
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| Check that the engine timing is correct | Move on to Step 5 | Timing not correct | Restore correct engine timing |
| 10 | FLYWHEEL BALANCING CHECK | All OK | Problems encountered | Operation |
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| Check that the flywheel is correctly balanced | End of diagnosis | Balancing not correct | Replace the flywheel Op. 1024B10 ENGINE FLYWHEEL - R + R FOR VERSIONS WITH MANUAL GEARBOX |