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Start from what you notice, then work toward the cause and the fix.

Jerky 1-2 upshift

4-Speed Auto Harsh Shift

Severity: medium

Symptom: Jerky 1-2 upshift
Delay engaging Drive
Cause: Ageing 4AT valve body and degraded fluid.
Solution: Fluid change helps; an overhaul is needed if the fault is severe.

DIY guides: Engine Oil Change (Proton Saga)Full details →

EPS light illuminates

Electric Power Steering Warning

Severity: medium

Symptom: EPS light illuminates
Heavy steering at low speed
Cause: Steering rack or column sensor fault.
Solution: Diagnose the rack; replace the column if required.

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Rattle from the door cards

Interior Trim Rattles

Severity: low

Symptom: Rattle from the door cards
Noise from the centre console
Cause: Loose interior trim clips.
Solution: Refit the clips and add padding.

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