2005 Mercedes-Benz S 417

The 2005 Mercedes-Benz S-Class (W220 chassis) offers a luxurious and technologically advanced driving experience for its time. While the S 430 is the specific model mentioned, other engine options available for the 2005 S-Class include the S 350 (3.7L V6), S 500 (5.0L V8), S 600 (5.5L V12), and AMG variants with even more powerful engines. The S 430 is powered by a 4.3-liter V8 engine that produces around 275 horsepower and 295 lb-ft of torque. The S 430 offers a smooth ride, a well-appointed interior, and a prestigious image. However, some common complaints include the high cost of maintenance and repairs, as well as the complexity of its electronic systems, which can lead to reliability issues.

Engine

4.3L V8 (S 430)

• Oil Leaks from Valve Cover Gaskets
  • Description/Symptoms: Oil leaks are noticed around the valve covers, often dripping onto exhaust manifolds causing a burning smell. Low oil levels may also be observed.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• MAF (Mass Air Flow) Sensor Failure
  • Description/Symptoms: Rough idling, poor acceleration, decreased fuel economy, and the check engine light illuminating. Diagnostic codes related to the MAF sensor are present.
  • Solution: Replacement of the MAF sensor.
  • Estimated Cost to Fix: $150 - $400+
  • Recalls: None Found
• Crankshaft Position Sensor Failure
  • Description/Symptoms: Stalling, difficulty starting the engine, or complete failure to start. Check engine light will be illuminated with a code related to the crankshaft position sensor.
  • Solution: Replacement of the crankshaft position sensor.
  • Estimated Cost to Fix: $150 - $350+
  • Recalls: None Found

Transmission

722.6 5-Speed Automatic Transmission (All Engine Options)

• Conductor Plate Failure
  • Description/Symptoms: Erratic shifting, limp mode (transmission stuck in a single gear), and diagnostic trouble codes related to transmission solenoids or speed sensors.
  • Solution: Replacement of the conductor plate.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Slipping or Harsh Shifting
  • Description/Symptoms: The transmission hesitates or slips during gear changes. Shifting may be abnormally harsh or jerky.
  • Solution: Often requires a transmission fluid flush and filter change, but could also indicate more serious internal damage requiring rebuild or replacement.
  • Estimated Cost to Fix: $200 (fluid flush) - $4000+ (rebuild/replace)
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibrations at low speeds, especially during acceleration. Transmission may also make unusual noises.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1000 - $2500+
  • Recalls: None Found

Suspension

• Airmatic Suspension Failure
  • Description/Symptoms: Vehicle sitting low or unevenly, compressor running constantly, “Visit Workshop” message displayed on the dashboard, and error codes related to the Airmatic system.
  • Solution: Repair or replacement of air struts, compressor, valve block, or associated air lines.
  • Estimated Cost to Fix: $500 - $2000+ (per component)
  • Recalls: None Found
• Air Suspension Leaks
  • Description/Symptoms: Hissing sounds coming from the suspension components, and the car sinking lower on one side after being parked for a period of time.
  • Solution: Repairing the leak on the part with the hole.
  • Estimated Cost to Fix: $200 - $1500+ (depending on the part and how extensive the leak is).
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The car battery frequently drains overnight or after a short period of being parked.
  • Solution: Diagnosis and repair of the parasitic drain. This can involve replacing a faulty component (e.g., a module, relay, or sensor) or addressing wiring issues.
  • Estimated Cost to Fix: $100 - $500+ (diagnosis can be expensive)
  • Recalls: None Found
• Instrument Cluster Pixel Loss
  • Description/Symptoms: Pixels in the instrument cluster display fade or disappear, making it difficult to read information.
  • Solution: Replacement or repair of the instrument cluster.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found
• Keyless Go Malfunctions
  • Description/Symptoms: Keyless entry and start functions become intermittent or completely fail.
  • Solution: Diagnosis and repair of the Keyless Go system, which may involve replacing door handle sensors, the keyless start module, or addressing wiring issues.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust forming on the edges of the fenders and around the rear license plate bracket
  • Solution: Remove rust and repaint
  • Estimated Cost to Fix: $200 - $2000+ depending on the extent of the rust
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof will not fully open or close, or will get stuck along the tracks.
  • Solution: Replacing the sunroof motor or tracks.
  • Estimated Cost to Fix: $200 - $1000+
  • Recalls: None Found
• Door Lock Actuator Failure
  • Description/Symptoms: Door fails to lock or unlock using the key fob or interior switch.
  • Solution: Replacing the door lock actuator.
  • Estimated Cost to Fix: $150 - $400+
  • Recalls: None Found

Summary

The 2005 Mercedes-Benz S 430, while luxurious, can present owners with a range of potential issues, many of which are related to the car’s complex electronic and air suspension systems. Engine and transmission issues can also arise as the vehicle ages. The severity of these issues ranges from minor inconveniences to major mechanical failures, with repair costs potentially ranging from a few hundred dollars to several thousand depending on the problem. The Airmatic suspension and electrical systems are particularly known for their potential for costly repairs. Due to the age of the vehicle, rubber and plastic parts are prone to dry rot and failure, which can contribute to issues.