What year Fiat Seicento S is most reliable?

Based on MOT first-test pass rates, the 1998 Fiat Seicento S has the highest pass rate at 35.0%, out of 184 vehicles tested.

What are the most common Fiat Seicento S MOT failures?

The most common Fiat Seicento S MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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550 vehicles · MOT data 1998–2001 · first-test pass rates

Best pass rate year

1998

35.0% first-test pass rate · 184 vehicles

Lowest pass rate year

2001

31.4% first-test pass rate · 141 vehicles

Year	Pass rate	Avg mileage	Vehicles
2001	31.4%	42,278 mi	141
1999	33.7%	56,773 mi	225
1998	35.0%	58,113 mi	184

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