Reliability Guide

Common Problems with the
2008 Lexus IS (XE20)

The 2008 launch of the IS F was a massive statement from Lexus, shoehorning a 5.0-litre V8 into the compact saloon to challenge the BMW M3 and Mercedes C63 AMG.

What changed for 2008

  • Introduction of the high-performance IS F model featuring a 417bhp 5.0-litre V8 and 8-speed automatic.
  • Minor facelift for the standard IS range.

Common MOT watch-outs

  • !Brake wear on the IS F, which uses expensive, high-performance components.
  • !Exhaust system corrosion, particularly around the distinctive stacked tailpipes on the IS F.
3
Known Issues
2
Serious
0
Moderate
1
Minor

All Known Issues

IS 220d DPF and EGR Trouble

SeriousExhaust & Emissions

Short-trip use can clog the diesel particulate filter and EGR system, causing limp mode, warning lights and stacked repair bills on the already less-desirable 220d.

Est. Repair Cost: £600–£2,000

IS 220d Head Gasket and Cooling Trouble

SeriousCooling System

The 2.2 diesel can also develop more serious cooling-system and head-gasket issues, which is one reason UK buyers generally prefer the V6 petrol.

Est. Repair Cost: £1,000–£2,500

Rear Brake Caliper and Disc Corrosion

MinorBrakes

Age and low annual mileage can leave the rear calipers sticky and the discs rusty, even on otherwise very dependable petrol cars.

Est. Repair Cost: £200–£450

Buying Tips for 2008 Lexus IS (XE20)

  • On the IS F, check the service history meticulously; the water pump is a known weak point and should ideally have been replaced.
  • Listen for a 'cracking' noise from the dashboard area on hot days, indicating a known issue with the dashboard material degrading.