Suzuki Swift years to avoid — 356,963 MOT tests ranked

Inspect most carefully: 2005, 2006, 2007. Strongest in the data: 2013 or 2015. The ranking uses 356,963 MOT tests across 16 registration years (2023–2025) and compares each year with all UK cars of the same age. Fuel-type signal: diesels show an average 6.8-point pass-rate deficit on this model. That may reflect mileage and use as well as the car itself, so inspect DPF and emissions history rather than treating fuel type as a verdict.

Every Swift year, ranked

The age-adjusted MOT index sets 100 as the pass rate of all UK cars registered in the same year and tested in the same calendar year. Higher is better. This prevents an old car being labelled a “bad year” simply because it is old.

Rank	Year	Index	Vs same-age	Pass rate	Tests
1	2015 Strong	106.3	+6.3 pts	85.1%	36,714
2	2013 Strong	106.3	+6.3 pts	79.6%	25,923
3	2014	106.2	+6.2 pts	82.0%	29,880
4	2012	105.9	+5.9 pts	77.1%	26,805
5	2016	104.9	+4.9 pts	86.2%	30,954
6	2020	104.6	+4.6 pts	94.5%	3,742
7	2011	103.9	+3.9 pts	73.1%	18,645
8	2017	103.6	+3.6 pts	87.6%	23,909
9	2019	103.4	+3.4 pts	91.8%	32,511
10	2018	102.6	+2.6 pts	88.9%	29,894
11	2010	97.7	-2.3 pts	65.1%	18,011
12	2009	94.8	-5.2 pts	61.2%	20,653
13	2008	94.3	-5.7 pts	59.5%	21,955
14	2007 Inspect	94.0	-6.0 pts	59.1%	21,203
15	2006 Inspect	93.0	-7.0 pts	57.4%	12,157
16	2005 Inspect	92.8	-7.2 pts	57.2%	4,007

Why 2005 and 2006 and 2007 rank lower

The 2007 cohort passes 59.1% of tests (-6.0 points versus same-age cars) at a median 92,072 miles, with suspension the leading failure system. The 2006 cohort passes 57.4% of tests (-7.0 points versus same-age cars) at a median 95,776 miles, with suspension the leading failure system. The 2005 cohort passes 57.2% of tests (-7.2 points versus same-age cars) at a median 95,622 miles, with suspension the leading failure system. This is population-level evidence, not a known-fault list: service history, engine version and the individual MOT record can outweigh the registration-year average.

How to use this before buying

Rankings describe the cohort, not the car. A cherished 2005 example beats a neglected 2013 one — always run the specific reg through the free MOT history check.
Read the advisories. Repeated notes for the same component across years mean the owner has been ignoring it. Decode them in our advisory library.
Fuel matters on this model. The diesel deficit (6.8 points) usually traces to DPF and emissions kit on low-mileage use — check for P2463-type soot codes on the test drive.
Scan before you pay. A 2-minute OBD scan reveals stored faults the dashboard hides — see our scanner guide.

FAQs

Which Swift years should I avoid?

Based on 356,963 MOT tests adjusted against cars of the same age, 2005, 2006, 2007 are the lower-scoring outliers. That is a prompt for closer inspection, not proof that every car from those years is bad.

What is the best Swift year to buy used?

2013 and 2015 lead the age-adjusted MOT ranking. The score compares each registration year with all UK cars of the same age; the specific car's history and condition still take priority.

Is the Swift reliable overall?

Across 356,963 tests, the median age-adjusted index is 103.5 (100 equals the pass rate of all cars registered in the same year). Use the spread between years as one signal, then check the individual registration.

Methodology: index = 100 + the model-year cohort’s MOT pass-rate difference versus all UK vehicles registered in the same year and tested in the same calendar year. Class 4 initial tests only; retests excluded; at least 1,500 tests per page. “Inspect” years are below both the same-age baseline and the model’s median index by at least 2 points. Association is not proof of a model-year defect. DVSA anonymised data 2023–2025, OGL v3.0.