Ford S-Max ST-Line HEV CVT (2021)

Estimated running costs and MOT pass rates from 51 MOT tests in 2024.

Annual Cost

£2,563

£214/month

MOT Pass Rate

88%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 25-38

2488cc Petrol

Solid Option

88% pass rate, £2,563/year to run. 6 points above average.

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Petrol2488cc5 years old51 tests24k miles avg

Annual Running Costs

Fuel (Petrol, 2488cc)

~30 mpg

£1,958

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£2,563

Per month£214/mo

Per week£49/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

88% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the average of 82% across all models in our data.

88% of MOT tests on Ford S-Max ST-Line HEV CVTs from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 51 tests across the UK, retests included. The average mileage recorded at those tests was 23,588 miles.

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How Does It Compare?

Rank among 2021 models2866th of 3,336(bottom 15%)

Rank among Ford models557th of 1,136(top half)

vs average of all models+6%(82% avg)

vs 2021 models average-4%(92% avg)

vs Ford average+3%(85% avg)

Mileage Analysis

23,588

Average miles

22,200

Expected for age

The average 2021 Ford S-Max ST-Line HEV CVT had 23,588 miles on the clock at its 2024 MOT, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

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Ford S-Max ST-Line HEV CVT by Year

Year	Pass Rate	Tests	Avg Mileage
2022	94%	31	26,586 mi
2021	88%	51	23,588 mi

Similar Cars to Consider

Mercedes A

2021 · 1991cc Petrol

£2,086/year

94%

+6%

Volvo XC40

2020 · 2000cc Petrol

£2,086/year

93%

+5%

Ford Ranger

2021 · 2400cc Petrol

£2,413/year

90%

+2%

Jaguar F-Pace

2019 · 1997cc Petrol

£2,086/year

91%

+3%

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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. Our records list a 2488cc petrol engine, though engines vary between versions. 51 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 15% of 2021 models for MOT pass rate.

With an average of 23,588 miles recorded at its 2024 MOT tests, Ford S-Max ST-Line HEV CVT owners drive about as much as the UK average.

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 £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; 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 £2,563 (£214/month), broken down as £1,958 fuel, £200 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

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Oil Consumption

Low risk

Larger 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 risk

Always 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 estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Ford S-Max ST-Line HEV CVT(2021)	88%	£1,958	£200	Grp 25-38	£2,563
Mercedes A(2021)	94%	£1,631	£200	Grp 18-32	£2,086-£477
Volvo XC40(2020)	93%	£1,631	£200	Grp 18-32	£2,086-£477
Ford Ranger(2021)	90%	£1,958	£200	Grp 25-38	£2,413-£150
Jaguar F-Pace(2019)	91%	£1,631	£200	Grp 18-32	£2,086-£477

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2021 Ford S-Max ST-Line HEV CVT

Is the 2021 Ford S-Max ST-Line HEV CVT reliable?

Good reliability. Occasional issues but generally solid. 88% of MOT tests on 2021 Ford S-Max ST-Line HEV CVTs ended in a pass, from 51 tests (DVSA MOT data for tests in 2024, retests included). That's 6 points above the average of 82% across all models in the same data.

How much does a 2021 Ford S-Max ST-Line HEV CVT cost to run?

Our estimate is £2,563 a year (£214 a month): £1,958 fuel, £200 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2021 Ford S-Max ST-Line HEV CVT?

88% of 51 MOT tests on the 2021 Ford S-Max ST-Line HEV CVT ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2866th of 3,336 models first registered in 2021 (bottom 15%).

What is the average mileage for a 2021 Ford S-Max ST-Line HEV CVT?

The average mileage recorded at MOT tests on the 2021 Ford S-Max ST-Line HEV CVT is 23,588 miles, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.