2017 Mercedes-Benz GLC250

The 2017 Mercedes-Benz GLC250 is a compact luxury SUV that offers a blend of comfort, style, and performance. The GLC250 is equipped with a 2.0-liter turbocharged inline-4 engine producing 241 horsepower and 273 lb-ft of torque. Other engine options available in the GLC lineup include a more powerful V6 in the GLC43 AMG and a V8 in the GLC63 AMG. All engines are paired with a 9G-TRONIC 9-speed automatic transmission. Owners often praise the GLC250 for its refined interior, smooth ride, and advanced technology features. Common complaints include the sometimes-confusing infotainment system and relatively small rear cargo area compared to some competitors.

Engine

2.0L Turbocharged Inline-4 (M274)

• Oil Leaks from Timing Chain Cover
  • Description/Symptoms: Oil leaking from the front of the engine, near the timing chain cover. Visible oil drips under the car. Burning oil smell.
  • Solution: Replacement of the timing chain cover gasket. Resealing the timing chain cover.
  • Estimated Cost to Fix: $800 - $1500+
• High-Pressure Fuel Pump (HPFP) Failure
  • Description/Symptoms: Engine misfires, rough idling, difficulty starting, check engine light. Diagnostic trouble codes (DTCs) related to fuel pressure.
  • Solution: Replacement of the high-pressure fuel pump.
  • Estimated Cost to Fix: $800 - $1200+

Recalls: None Found

Transmission

9G-TRONIC 9-Speed Automatic (725.0)

• Harsh or Jerky Shifting
  • Description/Symptoms: Noticeable harshness during gear changes, especially at lower speeds. Hesitation or jerking when accelerating.
  • Solution: Software update of the transmission control module (TCM). Replacement of valve body.
  • Estimated Cost to Fix: $200 - $400 (Software Update), $1500 - $2500+ (Valve Body)
• Delayed Engagement
  • Description/Symptoms: A noticeable delay when shifting from Park or Neutral into Drive or Reverse.
  • Solution: Transmission fluid flush. Valve body replacement.
  • Estimated Cost to Fix: $300 - $500 (Fluid Flush), $1500 - $2500+ (Valve Body)
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions (If Equipped)
  • Description/Symptoms: Vehicle sagging on one or more corners. “Vehicle Too Low” warning message. Compressor not running or running constantly.
  • Solution: Replacement of faulty air struts, air compressor, or air lines.
  • Estimated Cost to Fix: $1000 - $2000+ (per strut), $800 - $1500+ (compressor)
  • Recalls: None Found

Electrical

• COMAND Infotainment System Issues
  • Description/Symptoms: Freezing, Crashing, black screen, unresponsive touch screen. Bluetooth connectivity problems. Navigation malfunctions.
  • Solution: Software update. Replacement of the COMAND unit.
  • Estimated Cost to Fix: $150 - $300 (Software Update), $1200 - $2500+ (COMAND Unit)
• Battery Drain
  • Description/Symptoms: Car battery frequently dying, especially after sitting for a few days. Difficulty starting.
  • Solution: Parasitic draw test to identify the source of the drain. Replacement of faulty modules (e.g., seat control module, door control module).
  • Estimated Cost to Fix: $150 - $300 (Diagnosis), $200+ (Module Replacement)
  • Recalls: None Found

Exterior

• Sunroof/Moonroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly. Excessive wind noise. Leaks.
  • Solution: Cleaning and lubrication of sunroof tracks. Replacement of sunroof motor or seals.
  • Estimated Cost to Fix: $100 - $300 (Cleaning/Lubrication), $500 - $1200+ (Motor/Seals)

Interior

• Malfunctioning Seat Heaters
  • Description/Symptoms: Seat heaters not working at all, or only working intermittently. Overheating of seat heaters.
  • Solution: Replacement of seat heater element or control module.
  • Estimated Cost to Fix: $300 - $800+ (per seat)

Summary

The 2017 Mercedes-Benz GLC250 is generally a reliable vehicle, but it does have some common issues to be aware of. Engine oil leaks and HPFP failures are potential concerns. The 9-speed transmission can exhibit shifting problems. Electrical glitches with the infotainment system and battery drain are also reported. Suspension issues, particularly with the air suspension if equipped, can be expensive to repair. While some of these issues are relatively minor, others can be costly. Prospective buyers should carefully inspect the vehicle’s service history and consider a pre-purchase inspection by a qualified mechanic to identify any potential problems.