2004 Acura MDX

The 2004 Acura MDX is a popular luxury SUV known for its reliability, comfortable ride, and spacious interior. It was offered with only one engine and transmission option: a 3.5-liter V6 engine producing 265 horsepower and 250 lb-ft of torque, paired with a 5-speed automatic transmission. Owners generally appreciate the MDX for its smooth handling, decent fuel economy for its class, and Acura’s reputation for dependability. Common complaints include issues related to its age, such as wear and tear on suspension components and certain electrical glitches.

Engine

3.5L V6 (J35A5)

• Oil Leaks (Valve Cover Gaskets)
  • Description/Symptoms: Oil leaks from the valve cover gaskets, leading to oil drips on the exhaust manifold (burning smell) and a decrease in oil level.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Oil Leaks (Rear Main Seal)
  • Description/Symptoms: Oil leaks from the rear main seal, leading to oil drips, a decrease in oil level, and eventual engine damage if left unaddressed.
  • Solution: Replacement of the rear main seal.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• EGR Valve Issues
  • Description/Symptoms: Clogging of the EGR valve, leading to rough idling, poor acceleration, and potential engine misfires.
  • Solution: Cleaning or replacement of the EGR valve.
  • Estimated Cost to Fix: $100 - $300
  • Recalls: None Found
• Catalytic Converter Failure
  • Description/Symptoms: Reduced engine performance, illuminated check engine light (typically code P0420), and potential failure to pass emissions testing.
  • Solution: Replacement of the catalytic converter.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

Transmission

5-Speed Automatic

• Transmission Shifting Problems
  • Description/Symptoms: Harsh shifting, slipping between gears, and delayed engagement.
  • Solution: Often starts with a transmission fluid flush and replacement. If the problems persist, may require valve body repair or replacement, or a complete transmission rebuild or replacement.
  • Estimated Cost to Fix: $100 (fluid flush) to $2000 - $4000+ (rebuild/replacement)
  • Recalls: None Found

Suspension

• Rear Suspension Sag/Wear
  • Description/Symptoms: Rear suspension sagging, especially when loaded, leading to a bouncy ride and reduced handling performance.
  • Solution: Replacement of rear shocks, and springs.
  • Estimated Cost to Fix: $400 - $800
  • Recalls: None Found
• Worn Bushings and Ball Joints
  • Description/Symptoms: Clunking noises from the suspension, especially over bumps, indicating worn bushings and ball joints.
  • Solution: Replacement of the worn bushings and/or ball joints.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found

Electrical

• Power Door Lock Actuator Failure
  • Description/Symptoms: Failure of one or more power door lock actuators, preventing doors from locking or unlocking remotely.
  • Solution: Replacement of the faulty door lock actuator.
  • Estimated Cost to Fix: $150 - $300 per door
  • Recalls: None Found
• Navigation System Issues
  • Description/Symptoms: Failure or malfunctioning of the navigation system display.
  • Solution: Repair or replacement of the navigation system unit.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Climate Control Display Failure
  • Description/Symptoms: The climate control display fails or shows scrambled characters.
  • Solution: Repair or replacement of the climate control unit.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Exterior

• Rust (Rear Quarter Panels)
  • Description/Symptoms: Rust developing on the rear quarter panels, especially around the wheel wells.
  • Solution: Rust repair, including sanding, patching, and painting.
  • Estimated Cost to Fix: $500 - $1500+ (depending on severity)
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof failing to open or close properly, getting stuck, or making excessive noise.
  • Solution: Repair or replacement of the sunroof motor, tracks, or other components.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found
• Seat Heater Failure
  • Description/Symptoms: Seat heaters fail to turn on or provide adequate heat.
  • Solution: Repair or replacement of the heating element or switch.
  • Estimated Cost to Fix: $100-$300+
  • Recalls: None Found

Summary

The 2004 Acura MDX, while generally reliable, is prone to certain age-related issues. Engine issues mostly revolve around leaks and emissions equipment, while transmission problems can be significant and costly. Suspension components wear out over time, impacting ride quality. Electrical glitches can also occur. Rust on the exterior can be a concern in certain climates. The severity and cost of these issues vary, but addressing them promptly is crucial for maintaining the vehicle’s reliability and value.