ISUZU D-MAX DL20 (2021)
Running costs, common problems, and reliability data based on 670 real MOT tests in 2024.
MOT Pass Rate
86%
Total Tests (2024)
670
Avg Mileage
41,964 mi
Est. Annual Cost
£1,632
Is the 2021 ISUZU D-MAX DL20 reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It also outperforms the ISUZU brand average of 78%.
At 3 years old, 86% of ISUZU D-MAX DL20s from 2021 passed their MOT first time in 2024. That's based on 670 tests across the UK. The average mileage at this age is 41,964 miles.
How does the 2021 ISUZU D-MAX DL20 compare?
Mileage Analysis
The average 2021 ISUZU D-MAX DL20 has 41,964 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 ISUZU D-MAX DL20 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.
Checking a specific ISUZU D-MAX DL20?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 ISUZU D-MAX DL20
The 2021 ISUZU D-MAX DL20 is a family car with a 1898cc diesel engine. 670 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It sits in the bottom 90% of 2021 cars for MOT pass rates.
With an average of 41,964 miles at 3 years old, ISUZU D-MAX DL20 owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2021 ISUZU D-MAX DL20 Fuel Costs
The 1898cc 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 ISUZU D-MAX DL20?
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 86% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 ISUZU D-MAX DL20
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 ISUZU D-MAX DL20
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- FORD FOCUS (2019) 89% pass rate (+3%) from 93,803 tests
- MERCEDES A (2019) 91% pass rate (+5%) from 89,588 tests
- FORD KUGA (2019) 91% pass rate (+5%) from 72,831 tests
- VOLKSWAGEN POLO (2019) 89% pass rate (+3%) from 65,751 tests