ISUZU D-MAX (2021)
Running costs, common problems, and reliability data based on 425 real MOT tests in 2024.
MOT Pass Rate
85%
Total Tests (2024)
425
Avg Mileage
43,288 mi
Est. Annual Cost
£1,632
Is the 2021 ISUZU D-MAX 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, 85% of ISUZU D-MAXs from 2021 passed their MOT first time in 2024. That's based on 425 tests across the UK. The average mileage at this age is 43,288 miles.
How does the 2021 ISUZU D-MAX compare?
Mileage Analysis
The average 2021 ISUZU D-MAX has 43,288 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.
Best year to buy a ISUZU D-MAX?
The most reliable year is the 2020 model with a 86% MOT pass rate, while the 2012 model has the lowest at 75%. The 2021 sits between the two at 85%.
How much does a 2021 ISUZU D-MAX 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.
ISUZU D-MAX by Year
Checking a specific ISUZU D-MAX?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 ISUZU D-MAX
The 2021 ISUZU D-MAX is a family car with a 1898cc diesel engine. 425 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It sits in the bottom 92% of 2021 cars for MOT pass rates.
With an average of 43,288 miles at 3 years old, ISUZU D-MAX 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 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?
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 85% pass rate. Keeping on top of servicing will help avoid surprises.
ISUZU D-MAX Reliability Trend
Newer ISUZU D-MAXs show better MOT pass rates than older ones, with an average improvement of 6 percentage points.
Buying a Used 2021 ISUZU D-MAX
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. If you're flexible on year, the 2020 model has the highest pass rate at 86%.
Alternatives to the 2021 ISUZU D-MAX
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 (+4%) from 93,803 tests
- MERCEDES A (2019) 91% pass rate (+6%) from 89,588 tests
- FORD KUGA (2019) 91% pass rate (+6%) from 72,831 tests
- VOLKSWAGEN POLO (2019) 89% pass rate (+4%) from 65,751 tests