2020 Mercedes-Benz E43 AMG
The 2020 Mercedes-Benz E43 AMG is a performance-oriented variant of the E-Class sedan, known for its blend of luxury and sporty driving dynamics. This model year features a turbocharged 3.0-liter V6 engine producing 396 horsepower and 384 lb-ft of torque, paired with a 9-speed automatic transmission (9G-TRONIC). While admired for its powerful engine, comfortable interior, and advanced technology, some owners have reported issues. Common likes include the responsive engine, agile handling, and luxurious cabin. Dislikes often revolve around repair costs and some reported reliability concerns. Other engine options for the 2020 E-Class (non-AMG) include a 2.0L Turbo inline-4 and a 3.0L inline-6.
Engine
3.0L Turbo V6 (M276)
- Oil Leaks from Timing Chain Cover
- Description/Symptoms: Oil leaks originating from the front of the engine near the timing chain cover. This can result in oil spots under the car and a burning oil smell.
- Solution: Replacing the timing chain cover gasket and resealing the cover.
- Estimated Cost to Fix: $1200 - $1800+
- Turbocharger Issues
- Description/Symptoms: Whining noises, decreased power, or error codes related to the turbocharger system. Issues may arise due to the turbo oil feed or return lines or a faulty turbo actuator.
- Solution: Replacing or repairing the turbocharger or its associated components.
- Estimated Cost to Fix: $2500 - $4500+
Transmission
9G-TRONIC (9-Speed Automatic)
- Rough or Delayed Shifting
- Description/Symptoms: Hesitation or clunking noises during gear changes, particularly between lower gears.
- Solution: Software update of the transmission control module (TCM) and in some cases, replacement of the valve body.
- Estimated Cost to Fix: $300 - $500 (software update), $2000 - $3500 (valve body replacement)
- Recalls: None Found
- Torque Converter Issues
- Description/Symptoms: Shuddering at low speeds, particularly during light acceleration. Can also cause a check engine light.
- Solution: Replacement of the torque converter.
- Estimated Cost to Fix: $2500 - $4000+
Suspension
- Air Suspension Problems (if equipped)
- Description/Symptoms: Vehicle sagging on one or more corners, air compressor failure, or suspension malfunction warnings on the dashboard.
- Solution: Replacing the air struts, air compressor, or ride height sensors.
- Estimated Cost to Fix: $1500 - $3000+ per strut, $800-$1500+ for compressor.
Electrical
- COMAND System Malfunctions
- Description/Symptoms: Infotainment system freezing, unresponsive touchscreen, or Bluetooth connectivity issues.
- Solution: Software update or replacement of the COMAND unit.
- Estimated Cost to Fix: $150 - $400 (software update), $1500 - $3000+ (unit replacement)
- Sensor Failures
- Description/Symptoms: Faulty sensors such as the park distance control (PDC), blind spot monitoring system, or rain sensors.
- Solution: Replacing the faulty sensor.
- Estimated Cost to Fix: $200 - $800+ depending on the sensor.
Exterior
- No Issues Found
Interior
- Sunroof Issues
- Description/Symptoms: Sunroof not opening or closing smoothly, or getting stuck. The motor or track mechanism might be failing.
- Solution: Repair or replacement of the sunroof motor or track.
- Estimated Cost to Fix: $500-$1500+
- Seat Motor Failure
- Description/Symptoms: Electric seats not moving in one or more directions.
- Solution: Repair or replacement of the seat motor.
- Estimated Cost to Fix: $300-$800+
Summary
The 2020 Mercedes-Benz E43 AMG, while generally a well-regarded vehicle, can suffer from some notable issues. Engine oil leaks and turbocharger problems appear to be the most costly and potentially concerning, followed by transmission issues, particularly with the 9G-TRONIC transmission. Electrical glitches with the COMAND system and suspension issues (especially with air suspension) are also points to consider. The severity of these issues ranges from minor inconveniences to potentially expensive repairs, making a thorough pre-purchase inspection and careful maintenance crucial.