2019 Mercedes-Benz GLA45 AMG

The 2019 Mercedes-Benz GLA45 AMG is a performance-oriented subcompact SUV known for its potent engine and agile handling. The GLA45 AMG comes standard with a turbocharged 2.0-liter inline-4 engine producing 375 horsepower and 350 lb-ft of torque, paired with a 7-speed AMG SPEEDSHIFT DCT automatic transmission. It doesn’t have any other engine options or transmissions. Owners generally praise its exhilarating acceleration, sporty driving dynamics, and upscale interior, while some criticize its firm ride, limited cargo space, and relatively high price.

Engine

2.0L Turbocharged Inline-4 (M133)

• High-Pressure Fuel Pump Failure
  • Description/Symptoms: Difficulty starting, long cranking times, engine misfires, loss of power, fuel smell.
  • Solution: Replacement of the high-pressure fuel pump.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: Whining or screeching noises from the engine, reduced power, excessive smoke, and check engine light.
  • Solution: Replacement of the turbocharger.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Low coolant level, overheating, coolant puddles under the vehicle. Can be related to water pump or hoses.
  • Solution: Repair or replacement of the faulty component (water pump, hoses, etc.)
  • Estimated Cost to Fix: $200 - $1000+
  • Recalls: None Found

Transmission

7-Speed AMG SPEEDSHIFT DCT (Dual Clutch Transmission)

• Rough or Jerky Shifting
  • Description/Symptoms: Harsh upshifts or downshifts, hesitation when accelerating, clunking noises during gear changes.
  • Solution: Software update, transmission fluid flush, or in severe cases, valve body replacement.
  • Estimated Cost to Fix: $200 - $3,000+
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: Engine revving without corresponding acceleration, delayed engagement of gears, inability to shift properly.
  • Solution: Transmission fluid flush, valve body replacement, or complete transmission replacement.
  • Estimated Cost to Fix: $200 - $7,000+
  • Recalls: None Found

Suspension

• Air Suspension Issues (if equipped with optional air suspension)
  • Description/Symptoms: Vehicle leaning to one side, compressor not running, suspension malfunction warning light, rough ride. (Note: air suspension was an option, not standard)
  • Solution: Replacement of the air struts, air compressor, or related components.
  • Estimated Cost to Fix: $1,000 - $3,000+ per corner.
  • Recalls: None Found
• Creaking Noises
  • Description/Symptoms: Creaking, popping, or squeaking noises when going over bumps or turning. Often from worn bushings or ball joints.
  • Solution: Replacement of worn bushings or ball joints.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Electrical

• Malfunctioning Sensors
  • Description/Symptoms: Various warning lights illuminating on the dashboard, including ABS, traction control, tire pressure monitoring system (TPMS), etc. Can also cause erratic engine performance or other issues depending on the affected sensor.
  • Solution: Diagnosis and replacement of the faulty sensor.
  • Estimated Cost to Fix: $150 - $600+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car battery draining quickly, requiring frequent jump-starts or replacement.
  • Solution: Diagnosis of parasitic drain, repair or replacement of faulty components causing the drain (e.g., aftermarket electronics, faulty control modules).
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Exterior

• Panoramic Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, unusual noises during operation, water leaks.
  • Solution: Repair or replacement of sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Interior

• Multimedia System Problems (MBUX)
  • Description/Symptoms: System freezing, glitching, or failing to respond, issues with navigation, Bluetooth connectivity problems.
  • Solution: Software update, reset of the system, or replacement of the head unit.
  • Estimated Cost to Fix: $0 - $1,500+ (depending on severity and warranty coverage)
  • Recalls: None Found

Summary

The 2019 Mercedes-Benz GLA45 AMG, while offering thrilling performance, can be prone to several issues. Engine and transmission problems, particularly related to the high-pressure fuel pump, turbocharger, and dual-clutch transmission, can be costly to repair. Electrical issues and suspension problems are also concerns to be aware of. The severity of these issues varies, but owners should be prepared for potential repair expenses, especially as the vehicle ages.