2000 Mazda Millenia

The 2000 Mazda Millenia was a mid-size luxury sedan known for its sophisticated styling and available Miller-cycle V6 engine. The standard engine was a 2.5L V6 producing 170 horsepower and 160 lb-ft of torque, while the optional engine was a 2.3L Miller-cycle V6, delivering 210 horsepower and 210 lb-ft of torque. Both engines were paired with a 4-speed automatic transmission. Owners often appreciated the Millenia’s comfortable ride, quiet cabin, and unique engine technology. However, the car was sometimes criticized for its complex engine design (particularly the Miller-cycle version), which could lead to higher maintenance costs. The Miller-cycle engine also sometimes came with issues, as well as other issues the car would experience that any car around that year would experience.

Engine

2.5L V6

• Oil Leaks
  • Description/Symptoms: Oil leaks from valve cover gaskets, oil pan gasket, or rear main seal. Symptoms include visible oil drips, burning oil smell, and low oil levels.
  • Solution: Replace the leaking gasket or seal.
  • Estimated Cost to Fix: $100 - $500+ depending on the location and complexity of the leak.
  • Recalls: None Found

2.3L Miller-Cycle V6

• Supercharger Failure
  • Description/Symptoms: The supercharger on the 2.3L Miller-cycle engine is prone to failure. Symptoms include reduced power, whining noises from the engine, and potential engine damage if not addressed.
  • Solution: Replace or rebuild the supercharger.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil leaks from valve cover gaskets, oil pan gasket, or rear main seal. Symptoms include visible oil drips, burning oil smell, and low oil levels.
  • Solution: Replace the leaking gasket or seal.
  • Estimated Cost to Fix: $100 - $500+ depending on the location and complexity of the leak.
  • Recalls: None Found

Transmission

4-Speed Automatic (Both Engine Options)

• Delayed or Harsh Shifting
  • Description/Symptoms: Transmission experiences delayed engagement into gear, or harsh and jerky shifts between gears. This can be more pronounced when the transmission is cold.
  • Solution: Perform a transmission fluid flush and filter replacement. If the problem persists, internal repairs or a transmission replacement may be necessary.
  • Estimated Cost to Fix: $100 - $3,000+ depending on the severity and repair needed.
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: The transmission slips out of gear, especially under heavy acceleration. This can cause a loss of power and potentially lead to transmission failure.
  • Solution: Perform a transmission fluid flush and filter replacement. If the problem persists, internal repairs or a transmission replacement may be necessary.
  • Estimated Cost to Fix: $100 - $3,000+ depending on the severity and repair needed.
  • Recalls: None Found

Suspension

• Worn Struts and Shocks
  • Description/Symptoms: The struts and shocks can wear out, leading to a bouncy ride, poor handling, and excessive body roll.
  • Solution: Replace the worn struts and shocks.
  • Estimated Cost to Fix: $300 - $800+ per axle (front or rear).
  • Recalls: None Found
• Broken/Worn Springs
  • Description/Symptoms: The springs can wear out or break, leading to a saggy ride height.
  • Solution: Replace the broken springs.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Electrical

• Failed Window Motors
  • Description/Symptoms: Window motors may fail, preventing the windows from operating properly.
  • Solution: Replace the faulty window motor.
  • Estimated Cost to Fix: $150 - $400+ per window.
  • Recalls: None Found
• ABS Module Failure
  • Description/Symptoms: ABS light illuminates and the anti-lock braking system may not function properly.
  • Solution: Replace or rebuild the ABS module.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust can appear on the body panels, especially in areas prone to moisture and road salt exposure.
  • Solution: Repair or replace the affected body panels and repaint as needed.
  • Estimated Cost to Fix: $200 - $2,000+ depending on the extent of the rust.
  • Recalls: None Found

Interior

• Cracked Dashboard
  • Description/Symptoms: The dashboard may develop cracks due to sun exposure and aging.
  • Solution: Replace the dashboard or install a dashboard cover.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Summary

The 2000 Mazda Millenia, while offering a comfortable ride and unique engine options, is prone to several issues due to its age and complexity. The Miller-cycle engine, in particular, can suffer from supercharger problems. Other common issues include oil leaks, transmission problems, and electrical faults. The severity of these issues can range from minor inconveniences to major repairs. Overall, potential buyers should be aware of these potential problems and factor in the cost of maintenance and repairs when considering purchasing a 2000 Mazda Millenia.