ISUZU D-MAX (2018)
Running costs, common problems, and reliability data based on 6,944 real MOT tests in 2024.
MOT Pass Rate
83%
Total Tests (2024)
6,944
Avg Mileage
70,377 mi
Est. Annual Cost
£1,632
Is the 2018 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 6 years old, 83% of ISUZU D-MAXs from 2018 passed their MOT first time in 2024. That's based on 6,944 tests across the UK. The average mileage at this age is 70,377 miles.
How does the 2018 ISUZU D-MAX compare?
Mileage Analysis
The average 2018 ISUZU D-MAX has 70,377 miles on the clock, which is well above the expected 44,400 miles for a 6-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 2018 sits between the two at 83%.
How much does a 2018 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 2018 ISUZU D-MAX
The 2018 ISUZU D-MAX is a family car with a 1898cc diesel engine. 6,944 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. It sits in the bottom 89% of 2018 cars for MOT pass rates.
With an average of 70,377 miles at 6 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.
2018 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). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2018 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 83% 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 2018 ISUZU D-MAX
At 6 years old, the ISUZU D-MAX offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2020 model has the highest pass rate at 86%. With 6,944 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2018 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:
- VOLKSWAGEN GOLF (2017) 91% pass rate (+8%) from 127,682 tests
- FORD FOCUS (2019) 89% pass rate (+6%) from 93,803 tests
- MERCEDES A (2019) 91% pass rate (+8%) from 89,588 tests
- MERCEDES A-CLASS (2017) 88% pass rate (+5%) from 82,055 tests