2017 Mercedes-Benz CLA45 AMG
2017 Mercedes-Benz CLA45 AMG
Overview
The 2017 Mercedes-Benz CLA45 AMG, a high-performance compact sedan, offers exhilarating driving dynamics powered by its potent turbocharged engine. While generally well-regarded for its performance and premium features, like any performance vehicle, it can encounter specific issues. This data focuses on documented, non-wear-and-tear related reliability concerns reported by owners and technicians. The CLA45 AMG’s engineering prioritizes performance, which can sometimes translate to more specialized maintenance needs compared to its less performance-oriented counterparts. Understanding these potential areas can help owners budget for and address issues proactively, ensuring the longevity of this enthusiast-focused vehicle.
Engine
2.0L Turbocharged Inline-4 (M133)
Turbocharger Wastegate Actuator Failure
- Symptoms: Loss of boost, check engine light, reduced engine power, whistling noise from turbo.
- Solution: Replacement of the wastegate actuator or the entire turbocharger assembly.
- Cost: $800 - $1500
Coolant Leaks (Water Pump/Thermostat Housing)
- Symptoms: Visible coolant leaks, overheating, low coolant level warning.
- Solution: Replacement of the water pump or thermostat housing.
- Cost: $500 - $900
Transmission
7-Speed Dual-Clutch Transmission (7G-DCT)
Transmission Control Module (TCM) Malfunction
- Symptoms: Harsh shifting, delayed engagement, transmission warning light, limp mode.
- Solution: Software update or replacement of the TCM.
- Cost: $700 - $1200
Mechatronics Unit Issues
- Symptoms: Erratic shifting, failure to shift gears, clutch engagement problems.
- Solution: Repair or replacement of the mechatronics unit.
- Cost: $1500 - $3000
Suspension
AMG Sport Suspension
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Electrical
Standard Electrical System
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Exterior
Standard Exterior Components
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Interior
Standard Interior Components
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Summary Verdict
The 2017 Mercedes-Benz CLA45 AMG is a performance-oriented vehicle with a generally solid reliability record for its class. The primary areas of concern tend to be related to the high-performance powertrain, specifically the turbocharger and the dual-clutch transmission. Issues with the wastegate actuator, coolant leaks, and transmission control modules are the most frequently cited non-wear-and-tear problems. While the suspension, electrical, exterior, and interior systems are largely free from widespread issues, owners should be aware of potential costs associated with the specialized components of the engine and transmission. Regular maintenance and prompt attention to any warning signs are crucial for maintaining the optimal performance and reliability of the CLA45 AMG.