1997 Mercedes-Benz E420

1997 Mercedes-Benz E420

The 1997 Mercedes-Benz E420 is a mid-size luxury sedan powered by a 4.2-liter V8 engine producing 275 horsepower and 295 lb-ft of torque. It was available with a 5-speed automatic transmission. The E420 was praised for its comfort, performance, and style, but some owners have reported issues with its engine, transmission, suspension, electrical system, and exterior.

Engine

4.2L V8

• Intake manifold gasket leak: Oil or coolant leaks from the intake manifold gaskets, causing decreased engine performance and potential overheating.
  • Solution: Replace the intake manifold gaskets.
  • Estimated Cost to Fix: $500 - $1,000+
• Crankshaft position sensor failure: The crankshaft position sensor fails, resulting in intermittent engine starting problems, rough idling, and decreased performance.
  • Solution: Replace the crankshaft position sensor.
  • Estimated Cost to Fix: $200 - $500
• Cam position sensor failure: The cam position sensor fails, causing similar symptoms to a crankshaft position sensor failure.
  • Solution: Replace the cam position sensor.
  • Estimated Cost to Fix: $200 - $500 Recalls: 06V070000

Transmission

5-Speed Automatic

• Transmission fluid leak: The transmission fluid pan gasket or a transmission line fails, causing a transmission fluid leak.
  • Solution: Replace the leaking component.
  • Estimated Cost to Fix: $200 - $500+
• Harsh shifting: The transmission shifts roughly or hesitates during gear changes.
  • Solution: Service the transmission, including fluid change and filter replacement. May also require replacing valve body or solenoid pack.
  • Estimated Cost to Fix: $300 - $2,000+ Recalls: 01V148000, 02V240000

Suspension

• Strut mount failure: The strut mount bearings wear out, causing clunking or rattling noises over bumps.
  • Solution: Replace the strut mounts.
  • Estimated Cost to Fix: $300 - $600+ per corner
• Sway bar link failure: The sway bar links fail, causing clunking noises over bumps.
  • Solution: Replace the sway bar links.
  • Estimated Cost to Fix: $200 - $400+ per side
• Airmatic suspension failure: The airmatic suspension system compressor or air bags fail, causing the vehicle to sag or ride too high.
  • Solution: Replace the failed component or the entire airmatic system.
  • Estimated Cost to Fix: $500 - $3,000+ Recalls: None Found

Electrical

• Battery drain: The battery drains prematurely, even after replacing the battery.
  • Solution: Diagnose and repair electrical system, including checking alternator and parasitic draws.
  • Estimated Cost to Fix: $100 - $500+
• Xenon headlight failure: The xenon headlights fail or flicker prematurely.
  • Solution: Replace the xenon bulbs or ballast.
  • Estimated Cost to Fix: $200 - $500+ Recalls: None Found

Exterior

• Rust on wheel arches: The wheel arches develop rust, especially in areas with salted roads.
  • Solution: Repair the rust by removing, treating, and repainting the affected areas.
  • Estimated Cost to Fix: $500 - $2,000+ Recalls: None Found

Interior

• Climate control malfunction: The climate control system may not regulate temperature properly, leading to inadequate heating or cooling.
  • Solution: Diagnose and repair electrical components or replace climate control module.
  • Estimated Cost to Fix: $200 - $1,000+
• Cruise control stalk failure: The cruise control stalk may not work or behave erratically.
  • Solution: Replace the cruise control stalk.
  • Estimated Cost to Fix: $200 - $400

Summary

The 1997 Mercedes-Benz E420 is a luxurious and comfortable sedan, but it can suffer from various issues, including engine leaks, transmission problems, suspension wear, electrical failures, rust, and climate control malfunction. The severity of these issues varies, and repair costs can be substantial, especially for major engine or transmission overhauls. However, regular maintenance and proper care can help minimize these problems and ensure a long and enjoyable ownership experience.