2015 Mercedes-Benz CLA45 AMG

The 2015 Mercedes-Benz CLA45 AMG is a performance-oriented compact sedan known for its aggressive styling and potent powertrain. The CLA line also features the CLA250, which offers a less powerful engine and a more comfort-focused driving experience. The CLA45 AMG, however, boasts a turbocharged 2.0-liter inline-4 engine producing 355 horsepower and 332 lb-ft of torque, paired exclusively with a 7-speed dual-clutch automatic transmission. Owners appreciate the CLA45 AMG’s rapid acceleration, sharp handling, and distinctive design. Some common dislikes include a firm ride, limited rear seat space, and relatively high price point for the segment.

Engine

2.0L Turbocharged Inline-4 (M133)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the turbocharger, loss of power, check engine light. Potential for oil leaks from the turbocharger.
  • Solution: Replacement of the turbocharger assembly. Ensure proper oil changes are performed to prevent future failures.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• High Pressure Fuel Pump (HPFP) Failure
  • Description/Symptoms: Extended cranking time, rough idle, misfires, loss of power, check engine light.
  • Solution: Replacement of the high-pressure fuel pump.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant level decreasing, visible coolant on the ground, overheating. Potential leaks from the thermostat housing or water pump.
  • Solution: Diagnosis to pinpoint the leak source and replacement of the faulty component (thermostat, water pump, hoses, etc.).
  • Estimated Cost to Fix: $200 - $1,000+ (depending on location and part)
  • Recalls: None Found

Transmission

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

• Hesitation/Rough Shifting
  • Description/Symptoms: Hesitation when accelerating from a stop, jerky or rough shifts between gears, especially at lower speeds.
  • Solution: Software update/reprogramming of the transmission control module (TCM). In some cases, clutch replacement might be necessary.
  • Estimated Cost to Fix: $200 - $500 (software), $2,500 - $4,000+ (clutch replacement)
  • Recalls: None Found
• Transmission Mount Failure
  • Description/Symptoms: Excessive vibration, clunking noises during gear changes or acceleration, especially noticeable in Sport or Manual mode.
  • Solution: Replacement of the transmission mount.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• Faulty Window Regulators
  • Description/Symptoms: Windows not operating correctly, making grinding noises, not closing fully.
  • Solution: Replacement of the affected window regulator.
  • Estimated Cost to Fix: $300 - $600 per window
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car not starting after sitting for a short period, frequent jump starts required.
  • Solution: Diagnose parasitic drain by testing amps from each component, check the charging system (alternator), and replace the battery if necessary.
  • Estimated Cost to Fix: $150 - $500+ (depending on cause and component replacement)
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Malfunctioning COMAND System
  • Description/Symptoms: Screen freezing, unresponsive buttons, navigation errors, Bluetooth connectivity issues.
  • Solution: Software update. Replacement of the COMAND unit may be required in severe cases.
  • Estimated Cost to Fix: $150 - $300 (software), $1,000 - $2,500+ (replacement)
  • Recalls: None Found

Summary

The 2015 Mercedes-Benz CLA45 AMG, while a thrilling performance car, can suffer from a few notable issues. Engine-related problems like turbocharger and HPFP failures can be costly. Transmission hesitation and rough shifting are also fairly common, potentially requiring software updates or even clutch replacement. Electrical gremlins and COMAND system issues can add to the ownership experience. Severity of issues ranges from minor inconveniences to major repairs, with costs varying accordingly. Potential buyers should be aware of these common issues and consider a pre-purchase inspection to assess the vehicle’s condition.