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Lexus Lx 470

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Lexus LX 470: A Comprehensive Guide

The Lexus LX 470, produced from 1998 to 2007, represents the second generation of Lexus's foray into the full-size luxury SUV market. It's essentially a rebadged and more luxurious version of the Toyota Land Cruiser (J100 series), sharing its rugged off-road capability and robust mechanicals, but adding a touch of opulence and refinement expected from the Lexus brand. The LX 470 caters to buyers seeking a vehicle that can comfortably handle daily driving duties, while also possessing the ability to tackle challenging terrains and demanding conditions.

Generations

The LX 470 represents a single generation. However, there were a few notable updates and changes during its production run:

  • 1998-2002: Initial Release. Key features included the 4.7L 2UZ-FE V8 engine, AHC (Adjustable Height Control), full-time 4WD, and a luxurious interior.
  • 2003-2007: Facelift and Updates. The primary change involved a revised front fascia with new headlights and a different grille. Minor interior tweaks were also implemented, including updated navigation and audio systems. A five-speed automatic transmission replaced the previous four-speed.

Reliability & Common Issues

The Lexus LX 470 is renowned for its exceptional reliability, largely attributed to its shared platform with the Toyota Land Cruiser. However, like any vehicle, it's susceptible to certain issues:

Engine (2UZ-FE V8):

  • Valve Cover Gasket Leaks: A common issue on higher mileage examples. Oil leaks can occur around the valve cover gaskets, requiring replacement. It's a relatively straightforward repair.
  • Timing Belt Replacement: The 2UZ-FE is an interference engine, meaning a broken timing belt can cause significant engine damage. Following the recommended replacement interval (typically every 90,000 miles or 7 years, whichever comes first) is crucial. Neglecting this can lead to catastrophic engine failure. Ensure proper water pump replacement during the timing belt service.
  • Cooling System: Inspect the radiator, hoses, and thermostat for leaks and corrosion. Overheating can damage the engine. Regularly flush and replace coolant.

Transmission:

  • A343F (1998-2002 - 4-Speed Auto): Generally robust, but proper maintenance is key. Fluid changes are essential for longevity. Slipping or harsh shifting indicates potential issues.
  • A750F (2003-2007 - 5-Speed Auto): A more refined transmission than the 4-speed. Still requires regular fluid changes. Check for transmission cooler line leaks, which can lead to low fluid levels and transmission damage.

Suspension (AHC - Adjustable Height Control):

  • AHC System Leaks: A complex hydraulic system. Leaks in the accumulators, height sensors, or lines can lead to the system malfunctioning, resulting in a saggy ride height or the inability to adjust the suspension. Repairing AHC can be expensive. Consider the possibility of converting to a traditional suspension system as a more cost-effective long-term solution if problems persist.
  • AHC Pump Failure: The AHC pump can fail over time, causing the system to stop working.

Other Common Issues:

  • Rust: Inspect the undercarriage, frame rails, and body panels, especially in areas with harsh winters and road salt use. Rust can compromise the structural integrity of the vehicle.
  • Electrical Issues: Check all electrical components, including power windows, door locks, and sunroof. Ensure all lights function correctly.
  • Navigation System (Older Models): The navigation system in pre-2003 models can be outdated and slow. Map updates are no longer available.
  • Front Differential Bushings: These bushings can wear out, leading to vibrations and clunking noises, especially during acceleration. Replacement is recommended.

Driving Experience

The Lexus LX 470 offers a comfortable and capable driving experience, both on and off the road.

Pros:

  • Smooth Ride: The AHC suspension, when functioning correctly, provides a plush and comfortable ride, absorbing bumps and imperfections in the road.
  • Powerful Engine: The 4.7L V8 delivers ample power for daily driving and towing, with good low-end torque.
  • Off-Road Capability: The LX 470 is highly capable off-road, thanks to its full-time 4WD system, sturdy chassis, and ample ground clearance.
  • Luxurious Interior: The interior is well-appointed with high-quality materials, comfortable seating, and a range of features.
  • Reliability: Known for its long-term reliability, reducing the frequency of major repairs when properly maintained.

Cons:

  • Fuel Economy: Fuel economy is poor, averaging around 12-14 MPG in city driving and 15-17 MPG on the highway.
  • AHC Complexity: The AHC system, while providing a comfortable ride, can be expensive to repair when it malfunctions.
  • Size: The LX 470 is a large vehicle, which can make it challenging to maneuver in tight spaces.
  • Dated Technology: The technology, particularly in pre-2003 models, is outdated compared to modern vehicles.

Buying Advice

When shopping for a Lexus LX 470, consider the following:

  • Maintenance Records: Look for vehicles with comprehensive maintenance records, demonstrating regular servicing, especially timing belt and fluid changes.
  • AHC Condition: Thoroughly inspect the AHC system for leaks or malfunctions. Test the height adjustment functionality and listen for any unusual noises from the pump.
  • Rust Inspection: Carefully inspect the undercarriage and body for rust, especially in areas prone to corrosion.
  • Pre-Purchase Inspection: Have a qualified mechanic perform a pre-purchase inspection to identify any potential issues.
  • Year Considerations:
    • 2003-2007 Models: Generally preferred due to the facelift, five-speed automatic transmission, and updated features. However, they command a higher price.
    • 1998-2002 Models: Can be a good value, but require careful inspection for AHC and rust issues.
  • Alternatives: Consider the Toyota Land Cruiser (J100) as a more affordable option with similar capabilities.
  • Price: Prices vary widely based on condition, mileage, and location. Research the market to determine a fair price. Don't be afraid to negotiate.

By carefully considering these factors, you can find a well-maintained Lexus LX 470 that will provide years of reliable service and a luxurious driving experience.

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