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Lexus IS-F: A Comprehensive Guide

The Lexus IS-F, a high-performance variant of the Lexus IS sedan, was a significant departure for Lexus, showcasing its capability to produce a serious competitor in the performance sedan market. Introduced in 2007 as a 2008 model, the IS-F aimed squarely at rivals like the BMW M3 and Mercedes-AMG C63. It wasn't just a cosmetic upgrade; it featured a thoroughly reworked chassis, a powerful V8 engine, and a host of performance-enhancing features designed to deliver a thrilling driving experience. It falls squarely into the category of a compact executive performance sedan.

Generations

First Generation (XE20; 2007-2014)

The IS-F was exclusively produced as a single generation, spanning the 2008 to 2014 model years. While the core formula remained consistent throughout its lifespan, subtle changes and improvements were implemented over the years.

  • 2008: Initial launch of the IS-F with the 5.0-liter 2UR-GSE V8 engine and 8-speed automatic transmission. Distinctive features included stacked quad exhaust pipes, widened fenders, and performance-tuned suspension.
  • 2009: Minor interior refinements.
  • 2010: Addition of a Torsen limited-slip differential to improve traction. Suspension tweaks were also made to enhance handling.
  • 2011: No significant changes.
  • 2012: Revised instrument cluster and minor interior updates. Brembo brakes received improved pads.
  • 2013: No significant changes.
  • 2014: Final production year. A limited-edition "Apex Edition" was available in some markets, featuring cosmetic enhancements.

Reliability & Common Issues

The Lexus IS-F is generally known for its robust reliability, a hallmark of the Lexus brand. However, like any performance vehicle, it has its quirks and potential problem areas. Proper maintenance is critical to its longevity.

Engine (2UR-GSE)

  • Carbon Buildup (Early Models): Direct injection engines, like the 2UR-GSE, can suffer from carbon buildup on the intake valves, especially in early models. This can lead to reduced performance and rough idling. Walnut blasting or other cleaning methods are typically required to resolve this issue. Later models may have incorporated design changes to mitigate this, but preventative maintenance is still advisable.
  • Oil Consumption: Some IS-F owners have reported higher-than-normal oil consumption, particularly in higher-mileage examples. Regular oil level checks are crucial. The cause can vary from worn valve stem seals to piston ring issues. A compression test can help diagnose the severity.
  • Water Pump Failure: The water pump can fail prematurely, leading to overheating. Keep an eye on coolant levels and any signs of leakage. A preventative replacement around 80,000-100,000 miles is recommended.
  • Valve Spring Recall (Potentially Addressed): Some early production models (primarily 2008) were subject to a recall due to potentially faulty valve springs. Ensure this recall has been performed on any IS-F you are considering, verify through a Lexus dealer with the VIN.

Transmission (AA80E)

  • Transmission Service: The 8-speed automatic transmission is generally robust, but proper maintenance is essential. Follow Lexus' recommended service intervals for fluid changes. Skipping these services can lead to harsh shifting and potential transmission failure.
  • Torque Converter Issues: In some high-mileage examples, the torque converter can develop issues, leading to shuddering or slipping. A transmission rebuild or replacement may be necessary.

Suspension & Brakes

  • Suspension Components: The suspension components, including bushings and ball joints, can wear out over time, especially with aggressive driving. Listen for clunking or squeaking noises. Replacement of these components is a common maintenance item.
  • Brake Wear: The Brembo brakes are high-performance but can be expensive to maintain. Factor in the cost of rotor and pad replacements when considering an IS-F. Inspect brake lines for any signs of corrosion.
  • Limited Slip Differential (LSD): The Torsen LSD (introduced in 2010) is generally reliable, but proper lubrication is critical. Follow the recommended service intervals for the differential fluid.

Other Issues

  • Navigation System: The navigation system can become outdated and slow. Consider aftermarket solutions if this is a major concern.
  • Paint Issues: Some owners have reported issues with the paint, particularly on the front bumper.

Driving Experience

The Lexus IS-F offers a unique and engaging driving experience that blends luxury with raw performance. It's not as clinical as some German rivals; it has a more visceral and exciting character.

Pros:

  • Powerful Engine: The 5.0-liter V8 delivers exhilarating acceleration and a distinctive exhaust note.
  • Responsive Handling: The IS-F's chassis is well-balanced and provides excellent handling, especially with the Torsen LSD.
  • Comfortable Interior: Despite its performance focus, the IS-F retains Lexus' renowned comfort and refinement.
  • Reliability: Compared to its competitors, the IS-F is generally more reliable.
  • Unique Styling: The aggressive styling, including the stacked exhaust pipes, sets the IS-F apart.

Cons:

  • Fuel Economy: Fuel economy is poor compared to more modern performance sedans.
  • Rear Seat Space: Rear seat space is limited.
  • Outdated Technology: The infotainment system is dated compared to newer vehicles.
  • No Manual Transmission: The IS-F was only offered with an automatic transmission, which may disappoint some enthusiasts.

Buying Advice

If you're considering purchasing a Lexus IS-F, here's some advice to help you make an informed decision:

Years to Consider:

  • 2010-2014 Models: These models are generally preferred due to the inclusion of the Torsen limited-slip differential and any minor refinements made over the years.
  • 2008-2009 Models: These can be good value, but ensure the valve spring recall has been addressed. Factor in the cost of adding an aftermarket LSD if desired, or accept slightly reduced traction.

What to Look For:

  • Maintenance Records: Look for a well-maintained IS-F with complete service records. Pay close attention to oil changes, transmission services, and brake maintenance.
  • Pre-Purchase Inspection (PPI): Have a qualified mechanic perform a PPI to identify any potential issues. Focus on the engine, transmission, suspension, and brakes.
  • Recall History: Verify that all applicable recalls have been performed.
  • Carbon Buildup: Inquire about carbon cleaning on the intake valves, or plan to have it inspected and cleaned.
  • Test Drive: Take the IS-F for a thorough test drive to assess the engine, transmission, suspension, and brakes. Listen for any unusual noises or vibrations.
  • Rust: Check for rust, especially in areas prone to corrosion, such as the undercarriage and wheel wells.

What to Avoid:

  • Neglected Examples: Avoid IS-Fs with a history of deferred maintenance or signs of neglect.
  • Modified Vehicles: Be cautious of heavily modified vehicles, as these may have been subjected to excessive stress or abuse. Unless modifications were professionally installed and documented.
  • Cars with Unexplained Noises: Any unusual noises coming from the engine or transmission should be investigated thoroughly.
  • Cars with Accident Damage: Carefully inspect the IS-F for any signs of accident damage or repairs.

The Lexus IS-F represents a unique blend of performance, luxury, and reliability. With careful research and a thorough inspection, you can find a well-maintained example that will provide years of driving enjoyment.

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