SUZUKI SWIFT SZ5 DUALJET MHEV CVT (2021)
Running costs, reliability data, and common problems from 989 real MOT tests.
Annual Cost
£1,405
£117/month
MOT Pass Rate
94%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 5-15
1197cc Hybrid
Great Choice
94% pass rate, £1405/year to run. 12 points above average.
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Annual Running Costs
~50 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the SUZUKI brand average of 82%.
At 5 years old, 94% of SUZUKI SWIFT SZ5 DUALJET MHEV CVTs from 2021 passed their MOT first time in 2026. That's based on 989 tests across the UK. The average mileage at this age is 14,780 miles.
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How Does It Compare?
Mileage Analysis
14,780
Average miles
37,000
Expected for age
The average 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT has 14,780 miles on the clock, which is significantly below the expected 37,000 miles for a 5-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
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Best Year to Buy?
The most reliable year is the 2020 model with a 97% MOT pass rate, while the 2022 model has the lowest at 92%. The 2021 sits between the two at 94%.
SUZUKI SWIFT SZ5 DUALJET MHEV CVT by Year
Similar Cars to Consider
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About the 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT
The 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT is a city car with a 1197cc hybrid engine. 989 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 14,780 miles at 5 years old, SUZUKI SWIFT SZ5 DUALJET MHEV CVT owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT Fuel Costs
The modest 1197cc hybrid engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.
What does it cost to own a 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT?
Total estimated annual running cost is £1,405 (£117/month), broken down as £955 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
SUZUKI SWIFT SZ5 DUALJET MHEV CVT Reliability Trend
Older SUZUKI SWIFT SZ5 DUALJET MHEV CVTs tend to have better MOT pass rates than newer ones, with an average decline of 4 percentage points across model years.
Buying a Used 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT
At 5 years old, the SUZUKI SWIFT SZ5 DUALJET MHEV CVT offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2020 model has the highest pass rate at 97%.
Common Issues to Watch For
Based on the 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT's fuel type, age, and engine size, these are the most likely problem areas to check.
Hybrid Battery Health
Medium riskAfter 5 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.
Inverter and Power Electronics
Low riskThe inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.
Regenerative Braking
Medium riskBrake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2021 SUZUKI SWIFT SZ5 DUALJET MHEV CVT stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| SUZUKI SWIFT SZ5 DUALJET MHEV CVT(2021) | 94% | £955 | £195 | Grp 5-15 | £1405 |
| TOYOTA YARIS(2019) | 93% | £1137 | £190 | Grp 12-25 | £1582+£177 |
| MINI COOPER S(2019) | 92% | £1137 | £190 | Grp 12-25 | £1582+£177 |
| VOLVO XC40(2021) | 93% | £1137 | £190 | Grp 12-25 | £1582+£177 |
| MINI COUNTRYMAN(2019) | 93% | £1137 | £190 | Grp 12-25 | £1582+£177 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Suzuki Models
Explore other Suzuki cars or similar models in the same category.
SUZUKI VITARA
2019 · 1000cc Petrol
SUZUKI ALTO
2014 · 996cc Petrol
SUZUKI SWIFT
2015 · 1586cc Petrol
TOYOTA YARIS
2019 · 1497cc Hybrid
MINI COOPER S
2019 · 1499cc Hybrid
VOLVO XC40
2021 · 1470cc Hybrid
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