2018 Mercedes-Benz E400

2018 Mercedes-Benz E400

The 2018 Mercedes-Benz E400 is a mid-size luxury sedan that offers a comfortable and stylish interior, potent engine options, and advanced technology. It is powered by a 3.0-liter V6 engine with 329 horsepower and 354 lb-ft of torque, paired with a 9-speed automatic transmission. Other engine and transmission options include:

• 2.0-liter inline-4 with 255 horsepower and 273 lb-ft of torque, paired with a 9-speed automatic transmission
• 4.0-liter V8 with 402 horsepower and 480 lb-ft of torque, paired with a 9-speed automatic transmission
• Plug-in hybrid with a 2.0-liter inline-4 and an electric motor, offering a combined 320 horsepower and 516 lb-ft of torque, paired with a 9-speed automatic transmission

The E400 has received praise for its smooth ride, responsive handling, and luxurious cabin. However, it has also faced some issues in various components.

Engine

3.0-liter V6

• Intake Manifold Cracking
  • Description/Symptoms: Air leaks can cause rough idling, stalling, and reduced engine performance.
  • Solution: Replace the intake manifold.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Oil Filter Housing Leak
  • Description/Symptoms: Leaking oil can cause smoke, burning smells, and fluid loss.
  • Solution: Replace the oil filter housing or gasket.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Timing Chain Tensioner Failure
  • Description/Symptoms: Worn or broken tensioner can lead to excessive engine noise, loss of power, and potential engine damage.
  • Solution: Replace the timing chain tensioner.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

Transmission

9-Speed Automatic

• Hesitation or Jerking
  • Description/Symptoms: Abrupt or delayed shifting can cause hesitation or jerking during acceleration.
  • Solution: Update the transmission control software or replace transmission components.
  • Estimated Cost to Fix: $1,000 - $2,500+
  • Recalls: None Found
• Torque Converter Lockup Issue
  • Description/Symptoms: Shuddering or vibration during acceleration can indicate a faulty torque converter lockup.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: Loss of air pressure can lead to suspension sagging or abnormal ride height.
  • Solution: Replace the air suspension compressor.
  • Estimated Cost to Fix: $2,000 - $3,500+
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Premature battery discharge can leave the vehicle unable to start.
  • Solution: Diagnose and repair the electrical drain.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found
• Infotainment System Malfunction
  • Description/Symptoms: Intermittent or unresponsive touchscreen, audio issues, or navigation errors.
  • Solution: Update the software or replace the infotainment system.
  • Estimated Cost to Fix: $1,000 - $2,500+
  • Recalls: None Found

Exterior

• Roof Panel Noise
  • Description/Symptoms: Rattling or wind noise coming from the panoramic sunroof.
  • Solution: Adjust or replace the sunroof panel.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found
• Door Panel Trim Issue
  • Description/Symptoms: Loose or rattling trim on the front door panels.
  • Solution: Reattach or replace the trim.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Interior

• Center Console Cupholder Issue
  • Description/Symptoms: Cupholders not opening smoothly or breaking.
  • Solution: Replace the cupholder mechanism.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• HVAC Malfunction
  • Description/Symptoms: Weak or ineffective air conditioning or heating, or malfunctioning climate control system.
  • Solution: Diagnose and repair the HVAC system.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Summary

While the 2018 Mercedes-Benz E400 offers impressive performance and features, it has faced several issues in various components. These issues range from minor inconveniences to more serious concerns that can affect the vehicle’s reliability and driving experience. The costs to fix these issues can vary significantly depending on the severity and complexity of the problem. Owners should be aware of these potential issues and factor them into their decision-making when considering this vehicle.