
The cost of fuelling a car depends on several factors, including the type of fuel, the region, and the way the vehicle is driven and maintained. The Mercedes-Benz GLC is a reasonably economical SUV, with an average fuel economy of 25 MPG, resulting in an estimated annual fuel cost of $1,593. However, fuel costs may vary based on driving style, fuel prices, and engine specifications. In terms of fuel type, some sources recommend using premium fuel in the GLC, while others suggest that regular fuel can be used without significant adverse effects. The availability and definition of premium fuel can also vary by region, with some regions offering regular fuel with additives that increase injector detergents rather than octane ratings. Additionally, the GLC 300 de plug-in hybrid model offers increased fuel efficiency, with up to 156.9 mpg when the battery is regularly recharged.
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What You'll Learn

Fuel type and engine requirements
The fuel type and engine requirements of the Mercedes-Benz GLC vary depending on the model year and the market it is sold in.
Fuel Type
The 2025 Mercedes-Benz GLC-Class offers a range of engine options, including:
- GLC 300 4dr SUV (2.0L 4-cylinder Turbo gas/electric mild hybrid 9A)
- GLC 350e 4MATIC 4dr SUV AWD (2.0L 4-cylinder Turbo gas/electric plug-in hybrid 9A)
- AMG GLC 43 4dr SUV AWD (2.0L 4-cylinder Turbo gas/electric mild hybrid 9A)
- AMG GLC 63 S E PERFORMANCE 4dr SUV AWD (2.0L 4-cylinder Turbo gas/electric plug-in hybrid 9A)
The GLC 300 model with a 2.0-litre petrol engine claims to deliver up to 34 mpg, while the GLC 300 de, a plug-in hybrid with a 2.0-litre diesel engine, offers up to 156.9 mpg if the battery is regularly recharged. The GLC 300 e, another plug-in hybrid with a 2.0-litre petrol engine, can manage up to 122.8 mpg.
Engine Requirements
The GLC comes with a turbocharged and intercooled DOHC 16-valve inline-4 engine with an aluminium block and head, and direct fuel injection. It produces 255 horsepower at 6100 rpm and 295 lb-ft of torque at 1800 rpm. The engine is paired with a nine-speed automatic transmission and rear-wheel drive, with all-wheel drive available as an option.
It is recommended to follow the manufacturer's guidelines for fuel type, which may vary depending on the specific model and market. In some cases, using regular fuel instead of premium may not cause any adverse effects, but it could slightly impact fuel economy. Additionally, the engine tuning and calibration of ECU parameters may differ based on regional emission standards, resulting in variations in power output.
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Cost of ownership
The cost of ownership of a Mercedes-Benz GLC will depend on several factors, including the region you live in, how you care for and drive your vehicle, and the engine type. Here is a breakdown of the costs to help you understand the financial commitment involved in owning a GLC.
Fuel Costs
The fuel costs for a Mercedes-Benz GLC will depend on various factors, such as your driving style, fuel prices in your region, and the engine type. According to the EPA, the GLC gets an average of 25 MPG, which equates to an estimated annual fuel cost of $1,593, or $7,965 after 5 years. However, this may vary depending on your specific circumstances.
Maintenance and Repair Costs
Maintenance and repair costs can vary depending on how you use and care for your vehicle. On average, you can expect to spend $11,074 on financing a new Mercedes-Benz GLC over 5 years. This can be influenced by factors such as the loan term, your credit score, and your down payment. Additionally, the GLC has relatively high insurance groups, which can result in higher insurance costs. The average annual insurance cost is estimated to be $2,508, totalling $12,540 after 5 years of ownership.
Depreciation
Like most vehicles, the Mercedes-Benz GLC will depreciate in value over time. On average, a typically equipped GLC sells for $65,395. After 5 years, the vehicle's value is estimated to depreciate by $34,581, leaving a residual value of $30,814. This depreciation is a significant cost of ownership that is challenging to avoid but can be managed with proper care and maintenance.
Warranty and Servicing
Mercedes offers a competitive warranty on the GLC, providing a three-year/unlimited-mileage warranty on all new models. They also offer fixed-price servicing plans that can be paid upfront or in monthly instalments. The cost of servicing will depend on the specific plan and your chosen payment method.
Purchase Price
The purchase price of a Mercedes-Benz GLC will depend on the specific model and features you choose. The least expensive option is the GLC 300 4dr SUV, with a Manufacturer's Suggested Retail Price (MSRP) of $49,250. The plug-in hybrid GLC 350e 4MATIC 4dr SUV AWD starts at $59,900, while the AMG GLC 43 4dr SUV AWD starts at $67,100. The most expensive option is the AMG GLC 63 S E PERFORMANCE 4dr SUV AWD, with an MSRP of $86,050.
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$90.21

Fuel economy
The fuel economy of a car depends on several factors, including the engine type, driving conditions, and fuel type. The Mercedes-Benz GLC, a compact SUV, offers a range of engine options and fuel types, providing different fuel economy estimates.
The 2025 Mercedes-Benz GLC 300 4Matic has an EPA-estimated fuel economy of 27 mpg for combined city and highway driving. This estimate is based on standardized test routes and is an improvement of 2-3 mpg compared to equivalent SUVs. The GLC 300 model with a 2.0-litre petrol engine is estimated to provide up to 34 mpg.
The plug-in hybrid models of the GLC offer even better fuel economy. The GLC 300 e, introduced in 2021, has an official estimate of up to 122.8 mpg when paired with a 2.0-litre petrol engine. It offers an electric range of up to 28 miles and takes around 2.5 hours to charge using a 7kW home wallbox. The GLC 300 de, which combines a 2.0-litre diesel engine with a 13.5kWh battery, offers an impressive 156.9 mpg when regularly recharged, along with an electric range of 27 miles.
The GLC also has a non-hybrid lineup, with the GLC 300 being the least expensive option in the GLC-Class. The GLC 350e 4MATIC, a plug-in hybrid, and the AMG GLC 43, a mild hybrid, offer higher fuel efficiency at a higher price point. The AMG GLC 63 S E PERFORMANCE, the most expensive option, is a plug-in hybrid with an impressive electric range.
It is worth noting that fuel economy may vary based on driving conditions and styles. The EPA estimates for the GLC 300 4Matic assume a mix of 55% city and 45% highway driving. Additionally, the type of fuel used can impact fuel economy. Some drivers have shared their experiences with using different fuel grades, with some noticing a slight decrease in fuel economy when using regular-grade fuel instead of premium. However, the availability and suitability of fuel grades can vary across different regions and engine requirements.
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Insurance costs
The cost of insurance for a Mercedes-Benz GLC varies depending on several factors. The age of the car is one factor, with older cars generally being cheaper to insure as they are worth less than newer models. However, the Mercedes-Benz GLC is an exception to this trend, with 1-year-old models being the cheapest to insure, and 2 to 5-year-old models being the most expensive. The age of the driver also plays a significant role, with younger drivers paying more for insurance than older drivers. For example, drivers aged 18-24 pay $15 more than those aged 25 or older, and drivers aged 18 pay an average of $1,113 per month for full coverage. The cheapest age group for GLC drivers is 25-34.
The driver's history also impacts insurance costs, with accidents and speeding tickets increasing rates. GLC drivers with one accident on their record pay about $62 per month, while those with one ticket pay an average of $54 per month. The number of miles driven annually also affects insurance premiums, with drivers who are on the road less likely to benefit from cheaper rates. For example, GLC owners who drive fewer than 2,500 miles per year pay about $44 a month for auto insurance.
The state in which the car is insured also impacts the cost, with monthly premiums in Texas ranging from about $66 to $73, while in Illinois, premiums range from roughly $42 to $47. The safety rating of the car can also affect insurance costs, with the 2021 Mercedes-Benz GLC having a 5-star crash-test rating, which may help lower insurance costs.
On average, the cost of insurance for a Mercedes-Benz GLC is $2,508 per year, or between $156 and $400 per month, depending on the model year and coverage level. However, it is important to note that insurance rates can vary significantly between providers for the same coverage.
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Financing costs
The financing costs of a Mercedes-Benz GLC depend on several factors, including the region you live in, the way you care for and drive your vehicle, and the specific model you choose. Here are some key considerations regarding the financing costs of owning a Mercedes-Benz GLC:
Down Payment and Loan Terms
The amount you pay upfront as a down payment will impact your financing costs. Generally, a larger down payment will result in lower monthly payments and overall financing charges. Additionally, the loan term you choose will affect your costs. Longer loan terms may reduce your monthly payments but increase the total interest paid over time.
Interest Rates and Credit Score
The interest rate on your loan, often expressed as an APR (Annual Percentage Rate), significantly impacts your financing costs. Improving your credit score before taking out a loan can help you secure a lower interest rate, reducing the overall cost of financing.
Depreciation
Depreciation is a critical factor in the financing costs of a Mercedes-Benz GLC. On average, a Mercedes-Benz GLC is estimated to depreciate by $34,581 after 5 years of ownership. This depreciation value is the difference between the original sales price and the vehicle's resale value in the future.
Insurance Costs
Insurance costs are another significant component of financing a Mercedes-Benz GLC. On average, the annual insurance cost for a Mercedes-Benz GLC is estimated to be $2,508, which totals $12,540 after 5 years of ownership. These estimates are based on national averages for a 40-year-old driver with full coverage, a good driving record, and good credit.
Fuel Costs
While not directly tied to financing costs, fuel expenses are an essential consideration when budgeting for a Mercedes-Benz GLC. The GLC is known for its reasonable fuel economy, with an average of 25 MPG, resulting in estimated fuel costs of $1,593 annually or $7,965 over 5 years. These estimates are based on national average fuel prices and may vary depending on your driving habits and fuel prices in your region.
In summary, financing a Mercedes-Benz GLC involves various factors, including down payment, loan terms, interest rates, depreciation, insurance costs, and fuel expenses. By considering these aspects and making informed choices, you can better understand and manage the financing costs associated with owning a Mercedes-Benz GLC.
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Frequently asked questions
The average cost of owning a Mercedes-Benz GLC for 5 years is $70,957. This includes depreciation, insurance, and financing costs.
Fuel costs will vary based on your driving style, fuel prices in your area, and the engine of your vehicle. Based on national average fuel prices, fuel for a Mercedes-Benz GLC is estimated to cost $1,593 annually or $7,965 over 5 years.
The region you live in and the way you care for and drive your vehicle can influence the cost of owning a Mercedes-Benz GLC. For example, insurance groups for the Mercedes GLC are quite high, with diesel versions starting in group 32 and the GLC 300 de in groups 44-45 out of 50.
It is recommended to follow the manufacturer's guidance on fuel type, which is usually indicated in the Operator's Manual or on a placard inside the fuel filler door. While some users have reported using regular fuel without any issues, others suggest that premium fuel is necessary to maintain the rated horsepower and performance of the engine.






































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