DAF TRUCKS UNCLASSIFIED (2021)
Running costs, reliability data, and common problems from 83 real MOT tests.
Annual Cost
£1,695
£141/month
MOT Pass Rate
99%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
4500cc Diesel
Great Choice
99% pass rate, £1695/year to run. 17 points above average.
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Annual Running Costs
~40 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 17 points above the national average of 82%. It also outperforms the DAF TRUCKS brand average of 91%.
At 5 years old, 99% of DAF TRUCKS UNCLASSIFIEDs from 2021 passed their MOT first time in 2026. That's based on 83 tests across the UK. The average mileage at this age is 70,327 miles.
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How Does It Compare?
Mileage Analysis
70,327
Average miles
37,000
Expected for age
The average 2021 DAF TRUCKS UNCLASSIFIED has 70,327 miles on the clock, which is well above the expected 37,000 miles for a 5-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
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DAF TRUCKS UNCLASSIFIED by Year
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About the 2021 DAF TRUCKS UNCLASSIFIED
The 2021 DAF TRUCKS UNCLASSIFIED is a performance with a 4500cc diesel engine. 83 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 4% of all 2021 cars for reliability.
With an average of 70,327 miles at 5 years old, DAF TRUCKS UNCLASSIFIED owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2021 DAF TRUCKS UNCLASSIFIED Fuel Costs
The 4500cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 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 2021 DAF TRUCKS UNCLASSIFIED?
Total estimated annual running cost is £1,695 (£141/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 99% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 DAF TRUCKS UNCLASSIFIED
At 5 years old, the DAF TRUCKS UNCLASSIFIED offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 83 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2021 DAF TRUCKS UNCLASSIFIED's fuel type, age, and engine size, these are the most likely problem areas to check.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Medium riskDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Low riskExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Dual Mass Flywheel
Medium riskLarger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2021 DAF TRUCKS UNCLASSIFIED stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| DAF TRUCKS UNCLASSIFIED(2021) | 99% | £1245 | £195 | Grp 35-50 | £1695 |
| TOYOTA LAND CRUISER(2021) | 95% | £1245 | £190 | Grp 35-50 | £1690-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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