The Mercedes-Benz GLC Coupe (C253), produced between 2016 and 2019, merges the sporty profile of a coupe with the versatility of an SUV, offering a luxurious yet practical ride. Known for its eye-catching design, premium interior, and advanced technology, the GLC Coupe quickly became a popular choice for those seeking a blend of style and substance. However, like any luxury vehicle, it does come with its share of common issues that owners and potential buyers should know about. This article delves into the frequent problems associated with the 2016-2019 GLC Coupe, tips on what to look for when buying, and an outline of ownership costs.
Common Problems with the 2016-2019 Mercedes-Benz GLC Coupe (C253)
1. Engine Oil Leaks and Excessive Oil Consumption
Some GLC Coupe models, particularly those equipped with the M274 and M276 engines, have been known to experience oil leaks and excessive oil consumption. This issue is often due to faulty valve cover gaskets, seals, or issues within the piston rings, especially in models that have high mileage. Oil leaks can lead to low oil levels, increasing the risk of engine damage if not monitored and managed.
Signs and Prevention: Look out for low oil level warnings, visible oil spots under the car, or the smell of burning oil. Regularly check oil levels and consider scheduling more frequent oil changes. A pre-purchase inspection by a trusted mechanic can help detect any existing leaks or indications of high oil consumption.
2. Transmission Jerking and Shifting Issues (9G-Tronic Transmission)
The 9G-Tronic automatic transmission used in the GLC Coupe is generally smooth, but some owners have reported jerking or delayed shifting, particularly when shifting from first to second gear or during low-speed maneuvers. These issues may be due to faulty software calibration or wear in transmission components. If left unchecked, transmission problems can escalate and lead to costly repairs.
Signs and Prevention: If you notice rough or delayed shifting, it’s essential to have the transmission inspected. Mercedes-Benz dealerships often perform software updates that can help resolve minor issues, but severe cases may require replacement of transmission components. Taking the car for a thorough test drive, including highway and city driving, can help reveal any transmission irregularities.
3. Premature Brake Wear
Brake wear is a commonly reported problem in the GLC Coupe, with some owners needing to replace brake pads and rotors earlier than expected. Due to the vehicle's weight and sporty performance, the brakes may experience more wear, especially for drivers who frequently accelerate and brake heavily.
Signs and Prevention: Symptoms of worn brakes include squeaking or grinding sounds, reduced braking efficiency, or vibrations when applying the brakes. Checking for even wear on brake pads and rotors during routine inspections can help prolong their life. For prospective buyers, it’s wise to inquire about recent brake work to avoid unexpected expenses.
4. Electrical Issues with Infotainment System
The Mercedes COMAND infotainment system in the GLC Coupe offers a range of functions, but some owners report malfunctions, including screen freezes, navigation errors, and Bluetooth connectivity problems. These issues may arise from software bugs or hardware faults within the COMAND system, which can affect the overall experience of the vehicle’s luxury feel.
Signs and Prevention: Regular software updates from a Mercedes-Benz dealer may resolve minor infotainment glitches. Testing the infotainment system during a test drive, including using navigation, audio, and Bluetooth functions, can help uncover any existing problems. If persistent issues are found, the infotainment system may need a repair or update by a certified technician.
5. Suspension and Alignment Issues
The GLC Coupe, like many performance-oriented SUVs, has a suspension that’s tuned for sportier handling. This can lead to premature wear of suspension components, including bushings, shock absorbers, and alignment issues. If the vehicle has been driven on rough roads frequently, suspension parts may wear out faster, affecting ride comfort and stability.
Signs and Prevention: Common symptoms of suspension problems include clunking noises over bumps, uneven tire wear, and a rough or imbalanced ride. Having the suspension system checked during routine maintenance can help catch any issues early. For buyers, checking for any unusual tire wear patterns can indicate alignment or suspension issues.
6. Turbocharger and Intercooler Issues (GLC 43 and GLC 63 AMG Models)
The performance-oriented AMG variants, the GLC 43 and GLC 63, come with powerful turbocharged engines but can experience issues with the turbocharger and intercooler, particularly under heavy or high-mileage use. Turbocharger failures are rare but can be costly when they do occur, while intercoolers may develop leaks, leading to reduced performance and potential engine overheating.
Signs and Prevention: Symptoms of turbocharger or intercooler issues include reduced power, excessive smoke from the exhaust, or a whistling noise from the engine bay. Owners can help preserve the life of these components by allowing the engine to cool down before shutting it off after spirited driving. Prospective buyers should inspect AMG models carefully, ideally with a pre-purchase inspection focused on the engine components.
7. Paint and Trim Quality Issues
Although the GLC Coupe is designed with high-quality materials, some owners report issues with the exterior paint and interior trim wearing prematurely. This may include paint chipping, peeling, or fading, particularly around high-contact areas. Interior components such as the dashboard and leather upholstery may also show wear, especially in vehicles frequently exposed to sun or adverse conditions.
Signs and Prevention: Regular waxing and use of protective coatings can help maintain the paint's longevity. For interior trim, regular cleaning and conditioning are essential. During a pre-purchase inspection, check the vehicle’s exterior and interior for signs of wear that may indicate quality or maintenance issues.
Buying Tips: What to Look for in a 2016-2019 Mercedes-Benz GLC Coupe (C253)
Inspect Service Records: A well-maintained GLC Coupe should have a documented service history. Pay particular attention to records of any repairs related to common issues such as transmission work, brake replacements, and electrical or infotainment repairs.
Test for Transmission Smoothness: Take the car for a comprehensive test drive, noting any rough or delayed shifts in the transmission. A smooth shifting experience is essential, as transmission repairs on the 9G-Tronic can be costly.
Check Electronics and Infotainment Functionality: Use the COMAND infotainment system to test for any issues with navigation, audio, and Bluetooth. Persistent glitches may require a software update or repair, which can be expensive without warranty coverage.
Assess Brake Condition: Inspect brake wear to ensure pads and rotors are in good shape, as replacement costs can add up quickly, especially if both front and rear brakes need replacement.
Cost of Ownership: Is the Mercedes-Benz GLC Coupe (C253) Expensive to Own?
Fuel Economy
The fuel economy of the GLC Coupe varies depending on the engine and model. Standard models achieve decent fuel economy for an SUV, but AMG variants with turbocharged engines consume significantly more fuel. Owners should anticipate higher fuel costs for performance models, especially with aggressive driving.
Maintenance and Repair Costs
Routine maintenance costs for the GLC Coupe are on the higher end, given its luxury status. Scheduled service such as oil changes, brake checks, and tire rotations is more expensive than for non-luxury vehicles, especially at authorized Mercedes-Benz dealerships. However, staying on top of regular maintenance can help prevent more costly repairs down the road.
Insurance and Depreciation
The GLC Coupe tends to hold its value relatively well, but depreciation is inevitable with luxury SUVs. Insurance costs may also be higher due to the vehicle’s premium brand and performance capabilities, especially for AMG models.
Potential Extra Costs
Owners may face additional costs related to suspension repairs, particularly if the vehicle is driven on rough or uneven roads. Turbocharged AMG variants may incur extra costs for intercooler or turbocharger maintenance or repairs. Interior and exterior detailing and preservation are recommended to maintain resale value, particularly for models prone to paint or trim wear.
Conclusion
The 2016-2019 Mercedes-Benz GLC Coupe (C253) offers a blend of luxury, performance, and style, making it a sought-after option for those looking for a sporty yet practical SUV. While it does have common issues like oil leaks, transmission quirks, and brake wear, a well-maintained GLC Coupe can provide a rewarding ownership experience. By knowing what to look for when buying and understanding the typical maintenance needs, prospective owners can make an informed decision and enjoy the premium feel that the GLC Coupe offers.