2020 Mercedes-Benz GLC300

The 2020 Mercedes-Benz GLC 300 is a popular compact luxury SUV known for its comfortable ride, elegant interior, and advanced technology features. It’s available with a 2.0-liter turbocharged four-cylinder engine producing 255 horsepower and 273 lb-ft of torque, paired with a 9G-TRONIC 9-speed automatic transmission. Some owners appreciate its refined handling and luxurious appointments, while others have noted concerns about the infotainment system’s complexity and some reliability issues. Other engine options available are the AMG enhanced 3.0L V6 biturbo, and the AMG enhanced 4.0L V8 biturbo. These engine options are paired with the AMG SPEEDSHIFT TCT 9-speed automatic transmission.

Engine

2.0L Turbocharged Inline-4 (M264)

• Oil Leaks from the Valve Cover Gasket
  • Description/Symptoms: Oil leaks from the valve cover gasket can lead to a burning smell, visible oil residue around the engine, and potentially low oil levels.
  • Solution: Replacement of the valve cover gasket.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• High-Pressure Fuel Pump (HPFP) Failure
  • Description/Symptoms: Difficulty starting the engine, rough idling, engine misfires, and potential loss of power.
  • Solution: Replacement of the HPFP.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found

Electrical

• MBUX Infotainment System Glitches
  • Description/Symptoms: Freezing, lagging, random reboots, and unresponsive touchscreen. Can affect navigation, audio, and vehicle settings.
  • Solution: Software updates, replacement of the MBUX unit.
  • Estimated Cost to Fix: $0 (Software update), $1200+ (Replacement)
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Premature battery drain, requiring frequent jump-starts or replacement. Can be caused by faulty modules or parasitic drain.
  • Solution: Diagnosis and repair of the source of the drain, potentially replacing a faulty module or the battery itself.
  • Estimated Cost to Fix: $150 - $500+
  • Recalls: None Found

Interior

• Sunroof/Moonroof Malfunctions
  • Description/Symptoms: Failure to open or close properly, unusual noises during operation, and potential leaks.
  • Solution: Repair or replacement of the sunroof motor, track, or seals.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Exterior

• Automatic Tailgate Problems
  • Description/Symptoms: Tailgate failing to open or close automatically, getting stuck, or making unusual noises.
  • Solution: Repair or replacement of the tailgate motor, struts, or latch mechanism.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Summary:

The 2020 Mercedes-Benz GLC 300 experiences a range of issues, from relatively minor oil leaks to more significant electrical and mechanical problems. While some issues like MBUX glitches can be addressed with software updates, others such as HPFP failure or sunroof malfunctions can be more costly to repair. Overall, owners should be aware of these potential issues and factor them into their maintenance planning and budget. The cost to fix most of the issues ranges from $150 to $1500+, with most issues in the range of $200 to $800+.