2001 Mercedes-Benz E55 AMG

The 2001 Mercedes-Benz E55 AMG is a high-performance sedan powered by a hand-built 5.4-liter naturally aspirated V8 engine. It produces 349 horsepower and 391 lb-ft of torque. The engine is paired with a 5-speed automatic transmission. Owners often praise the car for its impressive power, comfortable ride, and understated styling, while common complaints include high maintenance costs and potential issues related to its age and complex systems.

Engine

5.4L M113 V8

• Oil Leaks
  • Description/Symptoms: Oil leaks from the valve cover gaskets, oil pan gasket, or rear main seal. Noticeable oil spots under the car, burning oil smell, and low oil level.
  • Solution: Replace the leaking gasket or seal.
  • Estimated Cost to Fix: $150 - $1000+ depending on the source of the leak.
• Crankshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, rough running, or failure to start. Check engine light may illuminate.
  • Solution: Replace the crankshaft position sensor.
  • Estimated Cost to Fix: $100 - $300
• Idler Pulley/Belt Tensioner Failure
  • Description/Symptoms: Squealing or chirping noise from the engine bay. Accessory belts may slip or break.
  • Solution: Replace the idler pulley or belt tensioner.
  • Estimated Cost to Fix: $100 - $300
• MAF (Mass Air Flow) Sensor Failure
  • Description/Symptoms: Engine running rough, hesitation upon acceleration, poor fuel economy, possible check engine light.
  • Solution: Replace the MAF sensor.
  • Estimated Cost to Fix: $200 - $500

Transmission

5-Speed Automatic (722.6)

• Conductor Plate Failure
  • Description/Symptoms: Erratic shifting, getting stuck in a gear, or limp mode.
  • Solution: Replace the conductor plate in the transmission valve body.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Transmission Fluid Leaks
  • Description/Symptoms: Transmission fluid leaks from the pan gasket or electrical connector.
  • Solution: Replace the leaking gasket or connector seal.
  • Estimated Cost to Fix: $100 - $500
  • Recalls: None Found

Suspension

• Air Suspension Issues (if equipped)
  • Description/Symptoms: Vehicle sagging, air compressor failure, “Visit Workshop” message related to air suspension.
  • Solution: Replace faulty air struts, air compressor, or air lines.
  • Estimated Cost to Fix: $500 - $2000+ per strut, $400-$800+ for compressor.
• Ball Joint/Control Arm Wear
  • Description/Symptoms: Clunking noises from the suspension, uneven tire wear, poor handling.
  • Solution: Replace worn ball joints or control arms.
  • Estimated Cost to Fix: $200 - $800+ per corner.

Electrical

• Instrument Cluster Pixel Failure
  • Description/Symptoms: Pixels missing or fading on the instrument cluster display.
  • Solution: Repair or replace the instrument cluster.
  • Estimated Cost to Fix: $200 - $800+
• Window Regulator Failure
  • Description/Symptoms: Window not going up or down, or making grinding noises.
  • Solution: Replace the window regulator.
  • Estimated Cost to Fix: $200 - $500 per window.
• Seat Motor Failure
  • Description/Symptoms: Seat does not adjust.
  • Solution: Replace the seat motor.
  • Estimated Cost to Fix: $200 - $600
• Keyless Entry Issues
  • Description/Symptoms: Key fob not working, difficulty locking/unlocking the car remotely.
  • Solution: Replace the key fob battery, or diagnose and repair the central locking system.
  • Estimated Cost to Fix: $5 - $500+ depending on the issue.

Exterior

• Rust
  • Description/Symptoms: Rust forming around the wheel wells, door edges, and underbody.
  • Solution: Repair or replace the rusted panels.
  • Estimated Cost to Fix: $200 - $2000+ depending on severity.

Interior

• No Issues Found

Summary

The 2001 Mercedes-Benz E55 AMG, while a capable and desirable performance sedan, is prone to a range of issues due to its age and complex engineering. Engine oil leaks and transmission problems, particularly conductor plate failure, are common and potentially costly. Suspension issues, especially with the air suspension, can also lead to expensive repairs. Electrical problems, like instrument cluster pixel failure, are also frequently reported. Rust is a potential issue to watch out for, especially in colder climates. Overall, potential buyers should be prepared for higher maintenance costs and the need for regular repairs. The severity of these issues ranges from minor inconveniences to major mechanical failures, with repair costs varying widely.