2015 Mercedes-Benz GLA45 AMG

The 2015 Mercedes-Benz GLA45 AMG is a performance-oriented subcompact SUV that offers impressive power and sporty handling. The only engine option available for the GLA45 AMG is a 2.0-liter turbocharged inline-4, producing 355 horsepower and 332 lb-ft of torque, paired with a 7-speed dual-clutch automatic transmission. People generally appreciate the GLA45 AMG for its exhilarating performance, nimble handling, and stylish design. Some common criticisms include a firm ride, limited rear passenger space, and some consider it pricey for a subcompact.

Engine

2.0L Turbocharged Inline-4

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the turbocharger, loss of power, check engine light.
  • Solution: Replacing the turbocharger.
  • Estimated Cost to Fix: $2,000 - $3,500+
  • Recalls: None Found
• High-Pressure Fuel Pump Failure
  • Description/Symptoms: Difficulty starting, rough idling, loss of power, check engine light.
  • Solution: Replacing the high-pressure fuel pump.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Low coolant level, overheating, visible leaks around the engine.
  • Solution: Repairing or replacing the leaking components (e.g., hoses, water pump, thermostat housing).
  • Estimated Cost to Fix: $200 - $1,000+ depending on the source of the leak.
  • Recalls: None Found

Transmission

7-Speed Dual-Clutch Automatic (AMG Speedshift DCT)

• Delayed or Harsh Shifting
  • Description/Symptoms: Noticeable delays or jerky shifts, especially during low-speed maneuvers or when shifting between certain gears.
  • Solution: Transmission software update, clutch replacement, or in severe cases, complete transmission replacement.
  • Estimated Cost to Fix: $300 for software, $2,000 - $4,000+ for clutch replacement, $6,000 - $8,000+ for transmission replacement.
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: Engine revving without corresponding acceleration, especially under heavy load or uphill.
  • Solution: Clutch replacement or transmission rebuild/replacement.
  • Estimated Cost to Fix: $2,000 - $4,000+ for clutch replacement, $6,000 - $8,000+ for transmission replacement.
  • Recalls: None Found

Suspension

• Noises from Suspension Components
  • Description/Symptoms: Clunking or creaking noises when driving over bumps or uneven surfaces, often emanating from the front or rear suspension.
  • Solution: Inspect and replace worn suspension components such as control arm bushings, sway bar links, or shock absorbers.
  • Estimated Cost to Fix: $200 - $800+ per corner, depending on the specific components needing replacement.
  • Recalls: None Found

Electrical

• Malfunctioning Sensors
  • Description/Symptoms: Issues with the vehicle’s sensors, such as the oxygen sensors, mass airflow sensor, or wheel speed sensors. These malfunctions can trigger the check engine light and affect the vehicle’s performance and fuel efficiency.
  • Solution: Diagnose the faulty sensor and replace it with a new one.
  • Estimated Cost to Fix: $150 - $500+ depending on the specific sensor and labor costs.
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: The battery drains quickly, especially when the vehicle is not in use, which can lead to difficulty starting the engine. This issue can be caused by a parasitic drain or a faulty battery.
  • Solution: Identify the source of the parasitic drain or replace the faulty battery.
  • Estimated Cost to Fix: $100 - $300+ for battery replacement, $200 - $500+ for diagnosing and fixing parasitic drain issues.
  • Recalls: None Found

Exterior

• Panoramic Sunroof Issues
  • Description/Symptoms: Difficulty opening or closing, unusual noises during operation, water leaks.
  • Solution: Repair or replace the sunroof mechanism or seals.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Interior

• COMAND System Problems
  • Description/Symptoms: Freezing, lagging, or complete failure of the COMAND infotainment system.
  • Solution: Software update or replacement of the COMAND unit.
  • Estimated Cost to Fix: $100 - $500+ for software, $1,000 - $3,000+ for replacement.
  • Recalls: None Found
• Seat Motor Failure
  • Description/Symptoms: The electric seat adjustment motors failing or becoming slow, causing difficulty adjusting the seat position.
  • Solution: Replace the faulty seat motor.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Summary

The 2015 Mercedes-Benz GLA45 AMG is known for its performance capabilities, but potential owners should be aware of some common issues. Engine issues like turbocharger failures and coolant leaks can be costly. Transmission issues related to harsh shifting or slipping might require expensive repairs or replacements. Electrical gremlins and interior component malfunctions can also occur, adding to the potential ownership costs. While not every GLA45 AMG will experience these issues, it is advisable to have a pre-purchase inspection performed by a qualified mechanic, especially one familiar with Mercedes-Benz vehicles, to assess the vehicle’s condition and identify any potential problems. The severity of these issues ranges from minor inconveniences to major repairs costing several thousands of dollars.