145 - MiTo   1.4 16v TJet   EXCESSIVE ROLLING/PITCHING - AT FRONT   H007   


 

 

 

Test results

 

1

 

ROAD TEST TO EVALUATE ROLLING/ PITCHING

 

All OK

 

Problems encountered

 

Operation

 

 

Carry out a road test to evaluate the rolling/pitching of the vehicle

 See Test 44B ROAD TEST FOR ROLLING/PITCHING EVALUATION

 

End of diagnosis

 

1. Subjective judgement compared with reference vehicle 6

2. Subjective judgement compared with reference vehicle 5.5

3. Subjective judgement compared with reference vehicle 3 - 4

 

1. Acceptable performance of the vehicle

2. Move on to Step 2

3. Move on to Step 4

 

2

 

END OF TRAVEL BUFFER CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Raise the vehicle on a two-column lift and, raising the dust cover on the lower side of the support spring, check that the end of travel buffer does not show signs of deterioration.

 

Move on to Step 3

 

End of travel buffer deteriorated

 

Replace the end of travel buffer

 Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R

 

3

 

WISHBONE BUSH CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check the condition of the track control arm front and rear bushes. The guard under the engine must be removed in order to do this

 Op. 7055B54 PROTECTION/GUARD UNDER ENGINE -R.R.

 

Move on to Step 4

 

1. Wishbone front bush deteriorated

2. Wishbone rear bush deteriorated

 

1. Replace the lower wishbone

 Op. 4410B40 LOWER TRACK CONTROL ARM (WITH BALLJOINT) FOR LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R - CHECK WHEEL GEOMETRY SEPARATELY

2. Replace the lower wishbone

 Op. 4410B40 LOWER TRACK CONTROL ARM (WITH BALLJOINT) FOR LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R - CHECK WHEEL GEOMETRY SEPARATELY

 

4

 

SHOCK ABSORBER EFFICIENCY CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check the efficiency of the shock absorbers by carrying out manual compression manoeuvres (resting on the bonnet by the centre of the wheel), which should be carried out on both sides of the vehicle

 

Move on to Step 5

 

Sudden return without damping

 

Replace the shock absorber that is not working properly

 Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R

 

5

 

VEHICLE GEOMETRY CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

After replacing the shock absorbers, check the geometry

 

End of diagnosis

 

Geometry values do not conform

 

Restore the geometry to the correct values

 Op. 4450A10 FRONT WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT - INCLUDES ADJUSTMENT IF NECESSARY