2004 Smart Roadster

The 2004 Smart Roadster is a distinctive two-seater sports car known for its compact size, quirky styling, and fun-to-drive character. It was available with a turbocharged 698cc three-cylinder engine, producing either 60 horsepower and 80 lb-ft of torque or 80 horsepower and 88 lb-ft of torque. Both engine options were paired with a six-speed semi-automatic transmission. Owners appreciate its fuel efficiency, nimble handling, and unique appearance. Common complaints include limited storage space, harsh ride quality, and concerns about reliability.

Engine

698cc Turbocharged Three-Cylinder (60hp/80hp)

• Turbocharger Failure
  • Description/Symptoms: Reduced power, whistling noise from the engine bay, check engine light illumination.
  • Solution: Replacement of the turbocharger.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil spots under the car, burning oil smell, low oil level. Common leak areas include the valve cover gasket and the turbocharger oil lines.
  • Solution: Replacement of the leaking gaskets and seals.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Crankshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, difficulty starting, erratic idling.
  • Solution: Replacement of the crankshaft position sensor.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Transmission

6-Speed Semi-Automatic

• Clutch Actuator Failure
  • Description/Symptoms: Difficulty shifting gears, jerky shifting, “three bars” error code on the dashboard.
  • Solution: Replacement or refurbishment of the clutch actuator.
  • Estimated Cost to Fix: $500 - $1200+
  • Recalls: None Found
• Gear Selector Issues
  • Description/Symptoms: Inability to select gears, especially reverse. Erratic shifting behavior.
  • Solution: Inspection and potential replacement of the gear selector mechanism or associated wiring.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Software Glitches
  • Description/Symptoms: Occasional shifting problems that can be resolved by restarting the car.
  • Solution: Transmission Control Unit (TCU) software update.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Suspension

• Broken Suspension Springs
  • Description/Symptoms: Sagging suspension, uneven ride height, clunking noises when driving over bumps.
  • Solution: Replacement of the broken springs (recommended to replace in pairs).
  • Estimated Cost to Fix: $300 - $700+
  • Recalls: None Found
• Worn Shock Absorbers
  • Description/Symptoms: Bouncy ride, poor handling, excessive body roll in corners.
  • Solution: Replacement of the shock absorbers (recommended to replace in pairs).
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Electrical

• Central Locking System Issues
  • Description/Symptoms: Doors not locking or unlocking properly, remote key failure.
  • Solution: Diagnosis and repair or replacement of the central locking control module, door lock actuators, or wiring.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found
• Instrument Cluster Problems
  • Description/Symptoms: Flickering or non-functional display, inaccurate readings, warning lights illuminated.
  • Solution: Repair or replacement of the instrument cluster.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car battery drains quickly, especially if left unused for a few days.
  • Solution: Diagnosis and repair of the parasitic drain, which could be caused by a faulty module, wiring issue, or aftermarket accessory.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Exterior

• Convertible Top Issues
  • Description/Symptoms: Difficulty opening or closing the convertible top, leaks, motor failure.
  • Solution: Repair or replacement of the convertible top motor, hydraulic cylinders, or seals.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Interior

• Window Regulator Failure
  • Description/Symptoms: Window not going up or down properly, grinding noises from the door.
  • Solution: Replacement of the window regulator.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Summary

The 2004 Smart Roadster, while a fun and unique vehicle, can suffer from several common issues. Engine problems, particularly with the turbocharger and oil leaks, can lead to moderate repair costs. The semi-automatic transmission’s clutch actuator is a frequent point of failure, resulting in potentially expensive repairs. Other issues with the suspension, electrical system, and convertible top can also contribute to the overall ownership cost. While no major recalls exist for the vehicle, prospective buyers should be aware of these potential problems and factor them into their purchase and maintenance budget.