TOYOTA SIENTA (2017)
Running costs, common problems, and reliability data based on 244 real MOT tests in 2024.
MOT Pass Rate
91%
Total Tests (2024)
244
Avg Mileage
44,918 mi
Est. Annual Cost
£1,582
Is the 2017 TOYOTA SIENTA reliable?
Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%. It also outperforms the TOYOTA brand average of 84%.
At 7 years old, 91% of TOYOTA SIENTAs from 2017 passed their MOT first time in 2024. That's based on 244 tests across the UK. The average mileage at this age is 44,918 miles.
How does the 2017 TOYOTA SIENTA compare?
Mileage Analysis
The average 2017 TOYOTA SIENTA has 44,918 miles on the clock, which is in line with the expected 51,800 miles for a 7-year-old car, suggesting normal everyday use.
Best year to buy a TOYOTA SIENTA?
The most reliable year is the 2018 model with a 100% MOT pass rate, while the 2016 model has the lowest at 88%. The 2017 sits between the two at 91%.
How much does a 2017 TOYOTA SIENTA cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
TOYOTA SIENTA by Year
Checking a specific TOYOTA SIENTA?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2017 TOYOTA SIENTA
The 2017 TOYOTA SIENTA is a small family car with a 1500cc petrol engine. 244 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2017, the average MOT pass rate is 87%, and this model beats that benchmark.
With an average of 44,918 miles at 7 years old, TOYOTA SIENTA owners drive about as much as the UK average.
2017 TOYOTA SIENTA Fuel Costs
The 1500cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2017 TOYOTA SIENTA?
Total estimated annual running cost is £1,582 (£132/month), broken down as £1137 fuel, £190 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 SIENTA Reliability Trend
Newer TOYOTA SIENTAs show better MOT pass rates than older ones, with an average improvement of 11 percentage points.
Buying a Used 2017 TOYOTA SIENTA
At 7 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 2018 model has the highest pass rate at 100%.
Alternatives to the 2017 TOYOTA SIENTA
The TOYOTA SIENTA is actually the most reliable option among similar petrol small family cars from this era. Here are comparable petrol cars with similar engines:
- VAUXHALL CORSA (2015) 78% pass rate (-13%) from 160,438 tests
- FORD FOCUS (2015) 85% pass rate (-6%) from 129,337 tests
- NISSAN QASHQAI (2017) 86% pass rate (-5%) from 100,176 tests
- VOLKSWAGEN POLO (2015) 82% pass rate (-9%) from 94,129 tests