IsItAGoodCar
Reliability Guide

Common Problems with the
2008 Lexus LS (Mk4)

The launch of the LS 600h L was a technological marvel, combining a 5.0-litre V8 with a powerful hybrid system to create the ultimate flagship luxury saloon, offering V12 performance with V8 economy.

What changed for 2008

  • •Introduction of the LS 600h hybrid flagship model.
  • •Debut of the long-wheelbase (L) body style.

Common MOT watch-outs

  • !Issues with the complex air suspension and active stabilizer systems.
  • !Exhaust system corrosion.
3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

Air Suspension Failure

SeriousSuspension & Chassis

The air suspension struts can leak over time, causing the car to sag and putting extra strain on the compressor.

Est. Repair Cost: £1,000–£1,500 per strut
Warning Signs:

Car sitting lower on one side, Hissing noise from the wheel arches, Compressor running constantly

What to Inspect:
  • Measure the height of each wheel arch after the car has sat overnight
  • Check if the car rises promptly when started
Verified by IsItAGoodCar Research Team

Brake Actuator Failure

SeriousBrakes

Similar to the GS and RX of this era, the LS 460 and 600h can suffer from brake actuator failure.

Est. Repair Cost: £2,000–£3,000
Warning Signs:

ABS and brake warning lights, Long pedal travel, Barking noise from the brakes

What to Inspect:
  • Test the brakes under various loads
  • Check service history for brake fluid flushes (critical for actuator life)
Verified by IsItAGoodCar Research Team

Control Arm Bushing Wear

ModerateSuspension & Chassis

The LS is a heavy car, and its front control arm bushings are a known weak point, leading to vague steering and clunking noises.

Est. Repair Cost: £400–£800
Warning Signs:

Clunking noise over bumps, Steering wheel vibration, Uneven tyre wear

What to Inspect:
  • Listen for knocks during the test drive
  • Inspect the tyres for feathering
Verified by IsItAGoodCar Research Team

Buying Tips for 2008 Lexus LS (Mk4)

  • Ensure the hybrid system transitions seamlessly; the LS 600h is incredibly complex, so a full Lexus history is mandatory.
  • Check all interior electrical features, especially the rear-seat massage and climate controls on long-wheelbase models.
20072009–2012
Check a 2008 Lexus LS (Mk4) by Registration