2015 Mercedes-Benz A45 AMG

The 2015 Mercedes-Benz A45 AMG is a performance-oriented hatchback known for its potent turbocharged engine and sporty handling. It came standard with a 2.0-liter turbocharged inline-4 engine producing 355 horsepower and 332 lb-ft of torque, paired exclusively with a 7-speed dual-clutch automatic transmission. Drivers generally appreciate its impressive power and agility, but some dislike its firm ride and relatively cramped rear seats.

Engine

2.0L Turbocharged Inline-4 (M133)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the turbocharger, loss of power, check engine light.
  • Solution: Turbocharger replacement
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• High-Pressure Fuel Pump (HPFP) Failure
  • Description/Symptoms: Long crank times, rough idle, stalling, check engine light with fuel-related codes.
  • Solution: HPFP replacement.
  • Estimated Cost to Fix: $800 - $1,500
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Low coolant level, overheating, visible coolant leaks around hoses or the water pump.
  • Solution: Replace leaking hoses, water pump, or 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 (7G-DCT)

• Rough Shifting/Hesitation
  • Description/Symptoms: Jerky or delayed shifts, especially between lower gears. Hesitation when accelerating.
  • Solution: Transmission adaptation reset, software update, or in severe cases, valve body replacement or full transmission replacement.
  • Estimated Cost to Fix: $150 (adaptation) - $5,000+ (transmission replacement)
  • Recalls: None Found
• Mechatronic Unit Failure
  • Description/Symptoms: Transmission not shifting, error messages on the dashboard, going into limp mode.
  • Solution: Mechatronic unit replacement or repair.
  • Estimated Cost to Fix: $2,000 - $4,000
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• Battery Drain
  • Description/Symptoms: The car has difficulty starting or won’t start after sitting for a short period.
  • Solution: Diagnostic test to identify the parasitic draw and replace the faulty component. It could be anything from a faulty module to a light staying on.
  • Estimated Cost to Fix: $150 - $1000+
  • Recalls: None Found
• Malfunctioning Sensors
  • Description/Symptoms: Faulty sensor can cause various problems. For example, a bad O2 sensor can cause a check engine light, poor fuel economy, and rough running.
  • Solution: Diagnose the faulty sensor and replace it.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Creaking Dashboard
  • Description/Symptoms: Annoying creaking or rattling sounds coming from the dashboard, particularly when driving on uneven surfaces.
  • Solution: Tightening loose components, adding felt or foam padding to reduce friction between parts.
  • Estimated Cost to Fix: $100 - $500 (depending on the complexity of the fix)
  • Recalls: None Found

Summary

The 2015 Mercedes-Benz A45 AMG can be an exciting car to own, but potential buyers should be aware of a few common issues. Engine and transmission problems, while not universal, can be costly to repair. Electrical problems can arise, but are typically cheaper to fix. The severity of the issues can range from minor inconveniences to major mechanical failures. Addressing these potential problems promptly can help maintain the vehicle’s performance and reliability.