FORD S-MAX ST-LINE HEV CVT (2021)
Running costs, reliability data, and common problems from 51 real MOT tests.
Annual Cost
£2,192
£183/month
MOT Pass Rate
88%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 25-38
2488cc Petrol
Solid Option
88% pass rate, £2192/year to run. 6 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
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
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 5 years old, 88% of FORD S-MAX ST-LINE HEV CVTs from 2021 passed their MOT first time in 2026. That's based on 51 tests across the UK. The average mileage at this age is 23,588 miles.
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Mileage Analysis
23,588
Average miles
37,000
Expected for age
The average 2021 FORD S-MAX ST-LINE HEV CVT has 23,588 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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About the 2021 FORD S-MAX ST-LINE HEV CVT
The 2021 FORD S-MAX ST-LINE HEV CVT is a large car with a 2488cc petrol engine. 51 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 86% of 2021 cars for MOT pass rates.
With an average of 23,588 miles at 5 years old, FORD S-MAX ST-LINE HEV CVT owners tend to use this car less than the typical driver.
2021 FORD S-MAX ST-LINE HEV CVT Fuel Costs
The 2488cc petrol engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 FORD S-MAX ST-LINE HEV CVT?
Total estimated annual running cost is £2,192 (£183/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 FORD S-MAX ST-LINE HEV CVT
At 5 years old, the FORD S-MAX ST-LINE HEV CVT offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 51 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2021 FORD S-MAX ST-LINE HEV CVT's fuel type, age, and engine size, these are the most likely problem areas to check.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
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 FORD S-MAX ST-LINE HEV CVT stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| FORD S-MAX ST-LINE HEV CVT(2021) | 88% | £1592 | £195 | Grp 25-38 | £2192 |
| MERCEDES A(2021) | 94% | £1327 | £190 | Grp 18-32 | £1772-£420 |
| VOLVO XC40(2020) | 93% | £1327 | £190 | Grp 18-32 | £1772-£420 |
| FORD RANGER(2021) | 90% | £1592 | £190 | Grp 25-38 | £2037-£155 |
| JAGUAR F-PACE(2019) | 91% | £1327 | £190 | Grp 18-32 | £1772-£420 |
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 Ford Models
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