Car reliability is up, but so are repair costs: What this means for drivers and repair shops

In a year where technology is transforming the way we drive, service and maintain vehicles, there’s a surprising twist in the data; Car reliability is improving, but the cost of repairs is soaring. According to MotorEasy’s latest Reliability Index, vehicles are breaking down less but when they do, it’s hitting wallets hard.

This paradox is creating a challenge not just for drivers, but also for garages, insurers and fleet managers. As cars become more advanced, repairs are more expensive, time-consuming and complicated. Here’s what the data is telling us and why it matters now more than ever.

Record-breaking reliability with a catch

For the first time in history, six different car models scored a perfect rating in MotorEasy’s Reliability Index. That’s a major milestone and it suggests manufacturers are making significant strides in quality and durability.

Among the standout performers:

• Audi Q2

• Jaguar E-PACE

• Lexus CT

• Mazda CX-3

• Suzuki Vitara

• Volvo XC40

These models, based on warranty data going back over nine years, reflect a new generation of vehicles designed to go further between breakdowns. That’s good news for consumers but there’s a major caveat.

When modern cars do fail, they fail big.

The price of progress: Why repairs are getting more expensive

While fewer cars are breaking down, the cost of fixing them is skyrocketing. And it’s not just because of inflation. Newer vehicles are packed with advanced electronics, complex drivetrain systems and high-tech safety features. That’s great for comfort, performance and emissions but when something breaks, the parts and labour are anything but simple.

Case in point: a battery fault on a Hyundai Ioniq EV cost a MotorEasy customer £6 244 in a single claim.

In another instance, replacing a water-cooled alternator on an Audi A6 came in at over £2 000 far more than the £600 it would have cost for a traditional alternator just a few years ago.

This trend shows no sign of slowing down, especially as EVs and plug-in hybrids become more mainstream.

The models that cost you the most (and least) to repair

MotorEasy’s data breaks down average repair costs by vehicle model and the results might surprise you.

The five most expensive cars to repair in 2025:

1. Hyundai IONIQ

2. Mercedes GT

3. Kia Optima

4. BMW X2

5. Bentley Continental

These vehicles tend to use high-end components, intricate systems or electric powertrains that require specialised handling.

The five most affordable models to repair:

1. Volvo XC40

2. Audi Q2

3. Kia CEED

4. Peugeot 108

5. Vauxhall Adam

These models benefit from widespread parts availability, simpler tech architecture, and more accessible design for mechanics.

The most (Un)reliable brands right now

Reliability is on the rise but it’s not evenly distributed. The report revealed that the four most unreliable models are all from Audi:

• Audi A4

• Audi A6

• Audi A7

• Audi Q7

Following closely behind is the BMW 5 Series.

It’s a stark reminder that even premium brands with strong reputations can struggle when it comes to consistency, especially with complex electronics or overengineered components that are prone to faults.

For repair shops, this data is invaluable. Knowing which models are more likely to roll into the garage with major faults helps with stock planning, technician training and even marketing.

Implications for repair shops, insurers and fleets

The rise in vehicle complexity is changing how the entire industry operates. Here’s how it’s affecting key players:

– 🚗 Independent garages & smart repair providers

More repairs require manufacturer-specific tools and knowledge. Investing in training and equipment for EVs, ADAS (advanced driver-assistance systems) and hybrid diagnostics is no longer optional, it’s essential.

– 🧾 Insurance companies

Rising claim values put pressure on premiums and risk models. Expect a greater focus on approved repair networks and tighter controls on parts sourcing and repair methods.

– 🚛 Fleet operators

Downtime is costly. More reliable vehicles are great but when repairs do happen, fleets need access to fast, cost-effective repair services. Building relationships with multi-brand smart repair specialists could give them a critical edge.

– 💡 Consumers

Expect higher bills when things go wrong, especially if you’re driving a hybrid or luxury model. Extended warranties, service plans and transparent communication from garages will become even more valuable.

What should the industry do?

The current data paints a clear picture: the industry must adapt fast. Here are some next steps for automotive businesses:

• Embrace predictive maintenance: Using diagnostics and telematics to catch faults before they become costly problems.

• Educate customers: Many car owners don’t realise how expensive modern repairs can be. Being upfront builds trust.

• Support sustainable repair options: Remanufactured parts (like Stellantis’ SUSTAINera range) offer affordable, eco-friendly alternatives.

• Invest in technician training: The skills gap is growing. Garages that upskill now will own the future.

Conclusion: The reliability paradox

2025 might be the most dependable year on record for many drivers but the flipside is clear: when things go wrong, they go really wrong. With high-tech components becoming the norm and electric powertrains on the rise, the repair landscape is being reshaped in real time.

For garages, insurers and drivers, this is both a challenge and an opportunity. Those who adapt quickly, invest smartly and communicate clearly will come out ahead in a market where reliability no longer means low cost.