The Volvo XC40 arrived in 2018 as the Swedish brand's first compact SUV, promising premium build quality and safety in a smaller, more affordable package. We've analysed 191,122 MOT tests covering 51,344 XC40s to determine whether it lives up to Volvo's reputation for durability.
The answer is nuanced. This is a well-engineered SUV that performs strongly for its class, but it's not without issues. Petrol and diesel variants show different ownership profiles, and some model years age better than others. More concerning is the high rate of dangerous defects on older examples, which contradicts Volvo's safety-first image.
The short version: The XC40 posts pass rates between 89.0% and 91.8% depending on year and fuel type, which is competitive for a premium compact SUV. However, dangerous defect rates on 2018-2019 models reach 26.4%, significantly higher than you'd expect from a Volvo. Petrol versions deliver slightly better pass rates but lower reliability scores than diesels. Expect brake and tyre bills every MOT cycle.
Petrol vs Diesel: Which Lasts Longer?
The data reveals a split personality. Diesel XC40s achieve higher reliability scores (up to 682/1000 for 2020 models) compared to petrols (topping out at 633/1000 for 2018). Yet petrol versions consistently post marginally better pass rates, typically 1-2 percentage points higher.
This apparent contradiction makes sense when you examine usage patterns. Diesel owners average 8,395 to 9,260 miles annually, while petrol drivers clock just 6,970 to 7,420 miles per year. The diesels are working harder but proving more durable under that workload. If you're a high-mileage driver, the diesel's superior reliability score matters more than the slightly lower pass rate.
Both powertrains share identical problems: tyres worn to the legal limit appear in 22-28% of tests, and brake pads wearing thin show up in roughly one-fifth of all MOTs. The defects-per-test metric sits at 0.9-1.0 across the board, suggesting similar maintenance demands regardless of fuel choice.
What Are the Most Common Faults?
The XC40's failure patterns are predictable but expensive. Tyres dominate the defect list, appearing in 22-28% of tests with wear close to the legal limit or edge wear. The XC40 runs 19-inch or larger wheels as standard, and owners quickly discover that premium rubber for these sizes isn't cheap.
Brake pads wearing thin feature in 20-23% of tests across all years. This isn't unusual for a 1,700kg SUV, but the frequency suggests owners should budget for pads every other MOT cycle. By 2021-2022 models, we also see brake discs flagged as worn (though not excessively) in 7-8% of tests.
Key point: Tyre sidewall cracking appears in 8-12% of tests, particularly on diesel models. This suggests either age-related degradation on low-mileage examples or quality issues with certain tyre brands fitted during manufacture.
What's largely absent from the defect list is anything serious. There are no widespread engine, transmission, or electronics failures appearing in the MOT data. When XC40s fail, it's usually consumables rather than catastrophic component failure.
Which Years Should You Avoid?
The 2018 and 2019 diesel models present a problem. Dangerous defect rates hit 26.4% and 25.1% respectively, meaning more than one in four vehicles has been flagged with a safety-critical issue at some point. For a brand that trades on safety credentials, this is poor.
The 2019 petrol also concerns us. It records the lowest reliability score of any petrol variant (608/1000) despite being newer than the 2018. Something about this model year ages badly. The first MOT pass rate drops to 91.0% from the 2018's 90.6%, which seems marginal, but when you're looking at nearly 10,000 vehicles, patterns emerge.
In contrast, 2020 diesel XC40s score 682/1000 for reliability and reduce dangerous defects to 18.1%. The 2021-2022 petrols push dangerous defects down to just 11.8% and 6.2% respectively. If you're buying used, avoid the early cars and focus on 2020 onwards.
How Does Mileage Affect Reliability?
Current mileage readings tell an interesting ownership story. Petrol XC40s typically show 25,000-48,000 miles depending on age, while diesels sit at 47,000-59,000. These are low-mileage vehicles, particularly the petrols, which average just 7,000 miles per year.
Low annual mileage usually correlates with better MOT performance, but the XC40 doesn't follow that script. The gentle-use petrol models achieve lower reliability scores than their harder-working diesel equivalents. This suggests the XC40 suffers more from age-related degradation (perished seals, surface corrosion on discs, tyre sidewall cracking) than from accumulated wear.
According to DVSA MOT data, vehicles driven infrequently can develop more problems than daily drivers. The XC40 appears to be one of them. If you're considering a low-mileage example, check carefully for evidence of regular use rather than assuming fewer miles equals better condition.
First MOT Performance: Early Warning Signs?
The XC40's first MOT pass rates range from 88.0% (2019 diesel) to 91.0% (2019 petrol). These sit below the overall pass rates for the same variants, which is unusual. Most cars perform best at their first test and deteriorate from there.
This pattern suggests build quality or design issues that manifest early. By age three, these vehicles are already showing brake and tyre wear that you wouldn't expect on a premium SUV. What Car? owner satisfaction surveys have flagged similar concerns about premature wear on consumables.
The gap between first MOT and overall pass rate narrows on newer models. The 2022 petrol shows 90.3% first MOT versus 91.8% overall, suggesting quality improvements. Volvo appears to have addressed some early production issues, but three-year-old XC40s still require more attention than rivals like the Audi Q3 or BMW X1 at the same age.
Are Dangerous Defects a Concern?
Yes, particularly on 2018-2019 models. A dangerous defect rate of 24-26% is unacceptable for a Volvo. These aren't minor advisories; they're failures serious enough that the vehicle shouldn't be driven until repaired.
The good news is the trend improves dramatically. By 2022, dangerous defects drop to just 6.2% of petrol models. Volvo has clearly made changes to address whatever caused early cars to fail on safety grounds so frequently.
What exactly are these dangerous defects? The MOT data doesn't specify, but given the prevalence of brake and tyre issues in the advisory categories, we can infer that neglected brake pads wearing to metal or severely damaged tyres contribute significantly. This points to owner behaviour as much as vehicle design. XC40 buyers may treat consumables maintenance more casually than they should on a vehicle this heavy and powerful.
Key point: If buying a 2018-2019 XC40, obtain the full MOT history from the DVSA website and verify that any dangerous defects were properly rectified with quality parts, not economy replacements.
Running Costs: Beyond the Purchase Price?
The XC40 will cost you more to run than initial purchase price suggests. With brake pads flagged in one-fifth of tests and tyres in one-quarter, you're looking at £300-400 for pads and £600-800 for a set of premium tyres every 20,000-30,000 miles.
Insurance groups are typically 20-30 depending on trim, which is standard for this class. Fuel economy varies wildly between the efficient diesels (50+ mpg achievable) and thirsty petrol units (mid-30s in real-world driving). RAC data confirms that XC40 owners report higher-than-expected running costs compared to Japanese rivals.
Service intervals are 12 months or 18,000 miles, but given the low annual mileage most owners cover, you're looking at annual dealer visits. Volvo main dealer servicing isn't cheap, though independent specialists can reduce costs significantly after the warranty expires.
Frequently Asked Questions
Is the Volvo XC40 more reliable than the XC60?
The XC40 generally achieves lower reliability scores than the larger XC60, which consistently scores above 700/1000. The compact SUV platform appears less robust than Volvo's mid-size offering, particularly in petrol form.
What's the average mileage for a used Volvo XC40?
Petrol XC40s average 7,000-7,400 miles annually, while diesel versions cover 8,400-9,300 miles per year. Most used examples show 25,000-60,000 miles depending on age and fuel type.
Do Volvo XC40s have expensive MOT failures?
Failures typically involve consumables (tyres, brake pads) rather than major components. Expect £300-800 per failure, though dangerous defects can escalate costs if structural or suspension issues develop.
Which is more reliable: Volvo XC40 petrol or diesel?
Diesel models achieve higher reliability scores (up to 682/1000 vs 633/1000 for petrol) despite working harder. However, petrol versions post marginally better pass rates and suffer fewer diesel-specific issues.
Are 2018 Volvo XC40s reliable?
2018 models are the least reliable XC40s, particularly diesels with 26.4% dangerous defect rates. Reliability scores are acceptable (633-666/1000) but early production quality was inconsistent. Later years perform better.
Our Verdict
The Volvo XC40 delivers respectable reliability for a premium compact SUV, but it's not the indestructible Swedish tank you might expect. Focus on 2020 or newer models, budget for regular brake and tyre replacement, and don't assume the Volvo badge guarantees trouble-free ownership.
Before buying any used XC40, check its complete MOT history with PlateInsight. You get 5 free vehicle checks to examine pass rates, mileage patterns, and whether that three-year-old diesel has been flagged for dangerous defects. It takes 30 seconds and could save you thousands in repairs on a car that looked perfect on the forecourt.
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