CarCostCheck

SEAT LEON SE DYNAMIC TDI (2021)

Running costs, common problems, and reliability data based on 227 real MOT tests in 2024.

MOT Pass Rate

89%

Total Tests (2024)

227

Avg Mileage

54,289 mi

Est. Annual Cost

£1,632

Is the 2021 SEAT LEON SE DYNAMIC TDI reliable?

Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%. It also outperforms the SEAT brand average of 85%.

At 3 years old, 89% of SEAT LEON SE DYNAMIC TDIs from 2021 passed their MOT first time in 2024. That's based on 227 tests across the UK. The average mileage at this age is 54,289 miles.

How does the 2021 SEAT LEON SE DYNAMIC TDI compare?

Rank among all 2021 cars2721th out of 3,373(top 81%)
Rank among all SEAT models147th out of 311(top 47%)
vs national average+7% (82% avg)
vs 2021 cars average-3% (92% avg)
vs SEAT average+4% (85% avg)

Mileage Analysis

The average 2021 SEAT LEON SE DYNAMIC TDI has 54,289 miles on the clock, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.

How much does a 2021 SEAT LEON SE DYNAMIC TDI cost to run?

Fuel (Diesel, 1968cc)
£1,037
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£350
Total per year£1,632
Per month£136/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

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About the 2021 SEAT LEON SE DYNAMIC TDI

The 2021 SEAT LEON SE DYNAMIC TDI is a family car with a 1968cc diesel engine. 227 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It sits in the bottom 81% of 2021 cars for MOT pass rates.

With an average of 54,289 miles at 3 years old, SEAT LEON SE DYNAMIC TDI owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.

2021 SEAT LEON SE DYNAMIC TDI Fuel Costs

The 1968cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).

What does it cost to own a 2021 SEAT LEON SE DYNAMIC TDI?

Total estimated annual running cost is £1,632 136/month), broken down as £1037 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.

Buying a Used 2021 SEAT LEON SE DYNAMIC TDI

At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.

Alternatives to the 2021 SEAT LEON SE DYNAMIC TDI

If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable diesel cars with similar engines: