Toyota Yaris (2018)

Estimated running costs and MOT pass rates from 42,493 MOT tests in 2024.

Annual Cost

£1,853

£154/month

MOT Pass Rate

91%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 8-20

1349cc Hybrid

Great Choice

91% pass rate, £1,853/year to run. 9 points above average.

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Hybrid1349cc8 years old42,493 tests36k miles avg

Annual Running Costs

Fuel (Hybrid, 1349cc)

~42 mpg (petrol-engine estimate; hybrids usually use less)

£1,398

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,853

Per month£154/mo

Per week£36/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

91% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 9 points above the average of 82% across all models in our data. It also outperforms the Toyota brand average of 84%.

91% of MOT tests on Toyota Yariss from 2018 ended in a pass in 2024, when they were about 6 years old. That's based on 42,493 tests across the UK, retests included. The average mileage recorded at those tests was 36,178 miles.

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How Does It Compare?

Rank among 2018 models233rd of 607(top half)

Rank among Toyota models280th of 970(top half)

vs average of all models+9%(82% avg)

vs 2018 models average+2%(89% avg)

vs Toyota average+7%(84% avg)

Mileage Analysis

36,178

Average miles

44,400

Expected for age

The average 2018 Toyota Yaris had 36,178 miles on the clock at its 2024 MOT, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.

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Best Year to Buy?

Of the years with at least 100 tests, the 2021 model has the highest MOT pass rate at 95%, while the 1999 model has the lowest at 68%. The 2018 scores 91%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Toyota Yaris by Year

Year	Pass Rate	Tests	Avg Mileage
2023	89%	37	35,939 mi
2022	98%	119	17,489 mi
2021	95%	632	26,407 mi
2020	94%	23,578	24,211 mi
2019	93%	41,554	29,343 mi
2018	91%	42,493	36,178 mi
2017	89%	41,160	41,679 mi
2016	89%	42,385	48,596 mi
2015	88%	46,438	55,753 mi
2014	85%	45,803	61,045 mi
2013	84%	46,724	66,676 mi
2012	83%	43,928	72,192 mi
2011	82%	25,853	75,115 mi
2010	79%	30,715	82,945 mi
2009	79%	40,160	84,624 mi
2008	75%	38,912	95,233 mi
2007	75%	36,409	96,983 mi
2006	73%	30,783	98,498 mi
2005	73%	29,754	94,076 mi
2004	72%	24,893	96,050 mi
2003	72%	20,755	97,179 mi
2002	72%	16,079	98,193 mi
2001	71%	12,710	99,203 mi
2000	70%	6,496	100,486 mi
1999	68%	3,072	98,260 mi

Similar Cars to Consider

MINI Cooper S

2019 · 1499cc Hybrid

£1,853/year

92%

+1%

Audi Q3

2016 · 1400cc Hybrid

£2,003/year

87%

-4%

Toyota Prius

2019 · 1797cc Hybrid

£2,086/year

94%

+3%

Toyota C-HR

2018 · 1797cc Hybrid

£2,086/year

90%

-1%

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About the 2018 Toyota Yaris

The 2018 Toyota Yaris is a small family car. Our records list a 1349cc hybrid engine, though engines vary between versions. 42,493 MOT tests were recorded on this model in 2024, making it one of the most commonly tested models on UK roads. Among all models from 2018, the average MOT pass rate is 89%, and this model beats that benchmark.

With an average of 36,178 miles recorded at its 2024 MOT tests, Toyota Yaris owners drive about as much as the UK average.

2018 Toyota Yaris Fuel Costs

The 1349cc hybrid engine offers a reasonable balance between performance and economy. Our estimate uses around 42 mpg, the figure for a petrol engine of this size, which works out to roughly £1,398 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). As a hybrid it should use less than that, and real-world fuel costs depend a lot on how much electric-only driving you do.

What does it cost to own a 2018 Toyota Yaris?

Total estimated annual running cost is £1,853 (£154/month), broken down as £1,398 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Toyota Yaris Reliability Trend

Newer Toyota Yariss pass their MOT more often than older ones, by 15 percentage points on average, which is mostly down to age and wear.

Buying a Used 2018 Toyota Yaris

At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2021 model has the highest pass rate at 95%. With 42,493 MOT tests in our data, there's strong statistical confidence in these figures.

What the 2018 Toyota Yaris Fails Its MOT On

Share of the 4,585 MOT tests on the 2018 Toyota Yaris that failed at the first attempt in 2025, next to all cars and vans of the same age.

Lights and electrics33%
Same age: 27%
Suspension30%
Same age: 19% (fails on this more often)
Tyres24%
Same age: 29%
Windscreen, wipers and mirrors21%
Same age: 16% (fails on this more often)

DVSA anonymised MOT data for 2025; a test that failed on two areas counts in both. How we count it · Toyota Yaris reliability, common problems and years to avoid

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.

Hybrid Battery Health

Watch out

After 8 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

Medium risk

The 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 risk

Brake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.

Suspension Wear

Medium risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

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 2018 Toyota Yaris 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
Toyota Yaris(2018)	91%	£1,398	£200	Grp 8-20	£1,853
MINI Cooper S(2019)	92%	£1,398	£200	Grp 12-25	£1,853same
Audi Q3(2016)	87%	£1,398	£200	Grp 8-20	£2,003+£150
Toyota Prius(2019)	94%	£1,631	£200	Grp 18-32	£2,086+£233
Toyota C-HR(2018)	90%	£1,631	£200	Grp 18-32	£2,086+£233

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 2018 Toyota Yaris

Is the 2018 Toyota Yaris reliable?

Excellent reliability. Very few MOT failures. 91% of MOT tests on 2018 Toyota Yariss ended in a pass, from 42,493 tests (DVSA MOT data for tests in 2024, retests included). That's 9 points above the average of 82% across all models in the same data.

How much does a 2018 Toyota Yaris cost to run?

Our estimate is £1,853 a year (£154 a month): £1,398 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2018 Toyota Yaris?

91% of 42,493 MOT tests on the 2018 Toyota Yaris ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 233rd of 607 models first registered in 2018 (top half).

Which year Toyota Yaris has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Toyota Yaris has the highest MOT pass rate at 95% and the 1999 the lowest at 68%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2018 Toyota Yaris?

The average mileage recorded at MOT tests on the 2018 Toyota Yaris is 36,178 miles, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.