2020 Mercedes-Benz CLA35 AMG

The 2020 Mercedes-Benz CLA35 AMG is a performance-oriented compact sedan/coupe known for its sporty handling and stylish design. It comes standard with a turbocharged 2.0-liter inline-4 engine producing 302 horsepower and 295 lb-ft of torque, paired exclusively with a 7-speed dual-clutch automatic transmission. Owners generally praise the CLA35 AMG for its engaging driving dynamics and premium interior, but some common complaints include a firm ride, the sometimes unintuitive MBUX infotainment system, and potentially high repair costs.

Engine

2.0L Turbocharged Inline-4 (M260)

• Coolant Leak
  • Description/Symptoms: Coolant leaks, often noticed by a sweet smell or low coolant level warning on the dash. The leak is often found at the thermostat housing.
  • Solution: Replacement of the thermostat housing and gasket.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Oil Leak from Valve Cover Gasket
  • Description/Symptoms: Oil leaks may be observed around the valve cover, potentially dripping onto exhaust components, causing a burning smell.
  • Solution: Replacement of the valve cover gasket.
  • Estimated Cost to Fix: $250 - $450+
  • Recalls: None Found

Transmission

7-Speed Dual-Clutch Automatic (7G-DCT)

• Rough or Delayed Shifting
  • Description/Symptoms: Owners report occasional instances of rough shifting, particularly at lower speeds. There may also be delays in shifting when using the paddle shifters or in automatic modes.
  • Solution: A transmission control unit (TCU) software update may resolve the issue. In some cases, a transmission fluid flush or replacement of the valve body may be required.
  • Estimated Cost to Fix: Software update $150 - $300, Fluid flush $250 - $400, Valve body replacement $1,500 - $2,500+
  • Recalls: None Found

Suspension

• Premature Wear of Suspension Components
  • Description/Symptoms: Some owners have reported premature wear of suspension components such as bushings and ball joints, especially in areas with poor road conditions. Symptoms include clunking noises from the suspension, uneven tire wear, and decreased handling performance.
  • Solution: Replacement of worn suspension components.
  • Estimated Cost to Fix: Varies greatly depending on the component, ranging from $200 - $1,000+ per corner.
  • Recalls: None Found

Electrical

• MBUX Infotainment System Glitches
  • Description/Symptoms: Freezing, lagging, or unexpected reboots of the MBUX infotainment system. Apple CarPlay or Android Auto connectivity issues.
  • Solution: Software updates. In severe cases, replacement of the MBUX control unit.
  • Estimated Cost to Fix: Software update $0-$100, MBUX control unit replacement $1,000 - $2,000+
  • Recalls: None Found
• Sensor Failures (Parking Sensors, etc.)
  • Description/Symptoms: Malfunctioning parking sensors or other driver-assistance sensors, leading to incorrect readings or error messages.
  • Solution: Replacement of the faulty sensor.
  • Estimated Cost to Fix: $200 - $500+ per sensor.
  • Recalls: None Found

Exterior

• Sunroof/Moonroof Issues
  • Description/Symptoms: The sunroof may stick, fail to open or close completely, or exhibit excessive noise during operation. Water leaks may also occur due to clogged drain tubes.
  • Solution: Cleaning and lubrication of the sunroof mechanism. Clearing drain tubes. Replacement of faulty sunroof motor or components.
  • Estimated Cost to Fix: Drain cleaning $100 - $200, Motor replacement $400 - $800+
  • Recalls: None Found

Interior

• Squeaks and Rattles
  • Description/Symptoms: Various interior squeaks and rattles, particularly from the dashboard, door panels, or rear deck. These can be exacerbated by temperature changes or rough road surfaces.
  • Solution: Identifying and isolating the source of the noise, then applying felt tape, foam padding, or tightening loose fasteners.
  • Estimated Cost to Fix: $100 - $500+ depending on the complexity of the issue.
  • Recalls: None Found

Summary

The 2020 Mercedes-Benz CLA35 AMG, while a sporty and desirable vehicle, is not without its potential issues. Engine oil and coolant leaks are possible, and the dual-clutch transmission can exhibit rough shifting. Electrical glitches with the MBUX infotainment system and sensor failures are also reported. Suspension component wear and interior squeaks/rattles add to the list of potential concerns. The severity of these issues ranges from minor inconveniences to potentially costly repairs, making pre-purchase inspection and a thorough maintenance history review essential. Overall, the vehicle has a moderate risk of problems, with the potential for moderately high repair costs.