2009 Mercedes-Benz E350

Introduction:

The 2009 Mercedes-Benz E350 is a luxury sedan powered by a 3.5-liter V6 engine producing 268 horsepower and 258 lb-ft of torque. It comes standard with a seven-speed automatic transmission and is available with rear- or all-wheel drive. Drivers appreciate the E350’s elegant styling, comfortable interior, and responsive handling. However, some owners have reported various issues with the vehicle.

Engine

• 3.5L V6 Engine:
  • Intake Manifold Leak:
    • Description/Symptoms: Coolant leaking from the intake manifold, causing overheating and engine performance issues.
    • Solution: Replace the intake manifold gaskets.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
  • Timing Chain Tensioner Failure:
    • Description/Symptoms: Noisy timing chain causing a ticking or rattling sound, leading to engine damage.
    • Solution: Replace the timing chain tensioners and related components.
    • Estimated Cost to Fix: $1,500 - $2,500+
    • Recalls: None Found

Transmission

• 7-Speed Automatic Transmission:
  • Valve Body Issues:
    • Description/Symptoms: Transmission slipping, shifting problems, and delayed engagements.
    • Solution: Rebuild or replace the valve body assemblies.
    • Estimated Cost to Fix: $1,000 - $2,000+
    • Recalls: None Found
  • Torque Converter Failure:
    • Description/Symptoms: Loss of power, shuddering during acceleration, and overheating.
    • Solution: Replace the torque converter assembly.
    • Estimated Cost to Fix: $1,500 - $2,500+
    • Recalls: None Found

Suspension

• Air Suspension Leaks:
  • Description/Symptoms: Air leaking from the suspension system, causing the vehicle to sag on one or more corners.
  • Solution: Replace the leaking air springs, lines, or compressor.
  • Estimated Cost to Fix: $500 - $1,500 per corner
  • Recalls: None Found

Electrical

• Electrical Short in SAM Module:
  • Description/Symptoms: Various electrical malfunctions, including issues with lighting, windows, and door locks.
  • Solution: Replace the Signal Acquisition Module (SAM).
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Exterior

• Headlight Condensation:
  • Description/Symptoms: Moisture accumulating inside the headlight assemblies, causing fogging or reduced visibility.
  • Solution: Replace the headlight assemblies.
  • Estimated Cost to Fix: $500 - $1,000 per headlight

Interior

• Climate Control Malfunction:
  • Description/Symptoms: Air conditioning or heating system not functioning correctly, causing temperature fluctuations.
  • Solution: Diagnose and repair the faulty component (e.g., climate control module, actuator, or blend door).
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found
• Infotainment Display Screen Issues:
  • Description/Symptoms: Screen flickering, dimming, or becoming unresponsive.
  • Solution: Replace the infotainment display assembly.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Summary:

The 2009 Mercedes-Benz E350 is a well-regarded luxury sedan, but it is not without its potential issues. While the severity and cost of these problems can vary, some owners have reported concerns with the intake manifold, timing chain tensioner, valve body, torque converter, air suspension, electrical system, and interior components. As with any used vehicle, it is crucial to have the car inspected by a qualified mechanic before purchasing to assess its current condition and potential repair costs.