10 Most Expensive Car Repairs

What is the most expensive repair on a car?

We compared the average costs for 349 automotive repairs nationwide, courtesy of RepairPal, and ranked the top 10 below from most to least expensive.

Just know that you should take these averages with a grain of salt. Estimating the most expensive repairs across hundreds of brands, models and model years is never going to be 100% accurate. For example, a timing belt replacement on a Mazda Miata may only be $500, while the same service on a Mercedes-Benz S550 can cost $2,100 or more.

Why do these repairs cost so much?

Most of the top 10 most expensive repairs require expensive replacement parts that make up the bulk of their cost, while one simply takes a lot of labor.

Some parts, like EV batteries and catalytic converters, have rare materials that drive up replacement costs.

For example, about 95% of the cost of replacing a high-voltage traction battery in a hybrid goes to buying parts, according to RepairPal. That figure lined up with our own research, which showed parts estimates for our sample vehicles ranging from roughly 84% to 98% of the total cost.

However, unlike the other repairs in our top 10 list, the cost of replacing a head gasket mostly comes down to the cost of labor. In fact, you can buy a replacement head gasket for as little as $15 at the time of publishing. Most mechanics need anywhere from six hours to several days to replace a head gasket, according to CoPilot, and when you’re paying them between $100 and $260 an hour, the total cost to replace a $15 engine part can quickly skyrocket.

» RELATED: A $1,000 repair would wreck most drivers' savings

Factors that affect car repair costs

Several other elements will also significantly influence how much you’ll pay for a car repair. These include:

• Vehicle make and model: Luxury and imported vehicles typically require more expensive parts and labor.
• Part availability: If parts are rare or need to be shipped internationally, prices can increase.
• Labor costs: Rates vary by region and shop. Urban areas tend to have higher labor rates.
• Warranty coverage: Cars still under warranty can have some or all of the repair costs covered.
• Age and mileage of the car: Older vehicles are more likely to need costly repairs, and the risk increases as mileage rises.
• Severity of the damage: Simple issues can become costly if left unaddressed and lead to more extensive damage over time.

What are the most expensive brands to repair?

Here are the top five most expensive brands to maintain and repair, according to RepairPal data, ranked from most to least expensive.

As you can see, two British brands and three German brands make up the top five. (Mercedes-Benz barely escaped this list, coming in at No. 6.)

The pattern raises a question: Why is it that German brands tend to command such high annual costs ($900-plus) compared with their Japanese and Korean counterparts, like Acura ($501) and Kia ($474)?

“Usually it's due to having a much more complex design,” said Nick Zeman, shop manager at Fastlane Import Auto Repair in Atlanta. “The fatal flaw with German cars is that they tend to be over-engineered. Japanese and Korean cars tend to be simpler, and that ideology works well.”

It’s also worth mentioning that RepairPal doesn’t publish data for niche or exotic brands like Ferrari, Lamborghini or Rolls-Royce, which may end up being more expensive to own than any of the brands ranked above.

How to avoid expensive car repairs

If you’re concerned about surprise four- or five-figure repair bills, here are some of the ways you can avoid them in the first place:

Most EVs and hybrids come with a battery warranty that guarantees against malfunction or total failure, usually for 8 years/100,000 miles.

• Buy a reliable car: According to RepairPal, the five cheapest brands to maintain and repair were Honda, Toyota, Mazda and Hyundai. The average annual maintenance and repair costs for these brands range from $428 to $468.
• Look for a long factory warranty: Your manufacturer’s warranties can protect you from large repair bills during the first few years of your vehicle’s life. Hyundai and Mitsubishi were at the top of our new car warranty ranking.
• Keep up with regular maintenance: Your owner’s manual will have a recommended maintenance schedule specific to your vehicle. There’s typically something you need to do every six months, ranging from basic oil changes to drive belt inspections. And while getting an oil change every six months may sound tedious and expensive, it’s still much cheaper than replacing a blown head gasket or cylinder head.
• Get regular car washes: Regular car washes won’t just help preserve your paint — they’ll also blow off salt and other road debris that can cause rust, corrosion and premature wear on your CV boots. That last benefit alone can prevent a $1,200 CV axle replacement.
• Have the right amount of insurance: Floods, tornadoes, hail and jaywalking deer can all total your car and leave you with 100% of the bill to replace it. Thankfully, comprehensive insurance is relatively affordable and will cover all four scenarios.
• Consider purchasing an extended warranty: Repair costs tend to rise exponentially after year five of ownership, which, coincidentally, is when all manufacturers’ bumper-to-bumper warranties have expired. An extended warranty won’t be financially worth it for everyone, but it can help if you’re in a tight spot or have an unreliable vehicle.

» MORE: Car warranty vs. car insurance

When does it make sense to repair vs. replace the vehicle?

Expensive repairs can force a tough decision: Fix the car or move on. The right choice usually comes down to cost, safety and how long the vehicle is likely to last after the repair.

Compare the repair estimate, your car’s resale value and your tolerance for future issues. If the repair buys you meaningful time at a reasonable cost, fixing it is usually the smart move. If not, putting that money toward a newer, more reliable vehicle may be the better long-term choice.

When repairing makes sense

Choose the repair when:

• The fix costs less than the car’s value: A good rule of thumb: If the repair is under 50% of the vehicle’s market value, it’s usually worth doing.
• The car is otherwise reliable: If you’re not dealing with recurring issues, a major repair can add years of usable life.
• Maintenance, not failure, caused the issue: Problems like worn belts, gaskets or sensors are often one-time fixes, not signs the car is failing overall.
• You can’t replace the car affordably: High interest rates, tight budgets or limited inventory can make repairing more practical.

When replacing makes sense

Consider selling or trading in the vehicle when:

• The repair exceeds the car’s value: Large jobs like transmission or engine replacement often cost more than older vehicles are worth.
• Breakdowns are becoming frequent: Multiple failures in a short period signal that other components may soon follow.
• The repair won’t extend the car’s life much: Even a major fix may not be worthwhile if other high-cost parts are also aging out.
• Safety is at risk: Structural damage, compromised airbags or major electrical faults may not be cost-effective or safe to repair.