2022 Mercedes-Benz E300

The 2022 Mercedes-Benz E300 is a luxury sedan known for its comfortable ride, elegant interior, and advanced technology. The E300 is equipped with a 2.0L turbocharged inline-4 engine producing 255 horsepower and 273 lb-ft of torque paired with a 9G-Tronic 9-speed automatic transmission. Other engine options in the E-Class range include a more powerful inline-6 and AMG-tuned engines. While many owners appreciate the E300’s refined driving experience and upscale features, some common complaints include the complicated infotainment system and occasional electronic glitches.

Engine

2.0L Turbocharged Inline-4

• Engine Mount Failure
  • Description/Symptoms: Excessive engine vibration felt in the cabin, especially at idle. May also hear clunking noises during acceleration or deceleration.
  • Solution: Replacement of the engine mounts.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light.
  • Solution: Turbocharger replacement.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

Transmission

9G-Tronic 9-Speed Automatic

• Rough or Delayed Shifting
  • Description/Symptoms: Hesitation during gear changes, harsh shifts, or failure to shift properly.
  • Solution: Software update or, in severe cases, valve body replacement or transmission replacement.
  • Estimated Cost to Fix: $200 (software update) - $4,000+ (transmission replacement)
  • Recalls: None Found

Suspension

• Air Suspension Malfunction (if equipped)
  • Description/Symptoms: Vehicle sagging on one or more corners, “Vehicle Level Too Low” warning, compressor running constantly.
  • Solution: Replacing leaking air struts or the air compressor.
  • Estimated Cost to Fix: $1,500 - $3,000+ per strut
  • Recalls: None Found

Electrical

• MBUX Infotainment System Freezing/Crashing
  • Description/Symptoms: The infotainment screen freezes, restarts unexpectedly, or becomes unresponsive to touch inputs.
  • Solution: Software update, or replacement of the MBUX module.
  • Estimated Cost to Fix: $0 (software update) - $1,500+ (module replacement)
  • Recalls: None Found
• Sensor Failures
  • Description/Symptoms: Malfunctions with parking sensors, blind spot monitoring, or lane keeping assist, leading to inaccurate warnings or system deactivation.
  • Solution: Diagnosis and replacement of the faulty sensor(s).
  • Estimated Cost to Fix: $300 - $800+ per sensor
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Sunroof failing to open or close properly, getting stuck, or producing excessive noise.
  • Solution: Repair or replacement of the sunroof mechanism or motor.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

Interior

• Seat Adjustment Motor Failure
  • Description/Symptoms: Electric seats not adjusting in one or more directions.
  • Solution: Replacement of the seat adjustment motor.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Summary

The 2022 Mercedes-Benz E300, while a luxurious and comfortable vehicle, experiences some common issues. Electrical glitches, especially with the MBUX system, seem to be prevalent, along with some mechanical issues like engine mount and transmission problems. Suspension issues can arise in vehicles equipped with air suspension. While some fixes are relatively inexpensive software updates, others, such as air suspension repairs or transmission replacements, can be costly. It’s always recommended to have a pre-purchase inspection performed by a qualified mechanic familiar with Mercedes-Benz vehicles before buying a used E300.