IsItAGoodCar
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
Warning Signs:

DPF warning light, Frequent regeneration, Poor performance or limp mode

What to Inspect:
  • Ask what kind of trips the car usually does
  • Check for DPF or EGR invoices
  • Look for smoke or warning lights once fully warm
Verified by IsItAGoodCar Research Team

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
Warning Signs:

Coolant loss, Pressurised coolant hoses, White smoke on startup

What to Inspect:
  • Check the coolant level from cold
  • Look for repeated topping-up or fresh coolant in the boot
  • Watch for bubbling in the header tank after a hard drive
Verified by IsItAGoodCar Research Team

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
Warning Signs:

Inner rear discs heavily rusted, One rear wheel hotter than the other, MOT advisories for binding or pitted brakes

What to Inspect:
  • Inspect the inside faces of the rear discs
  • Check for a lip or pitting
  • Feel for excess heat from one rear wheel after the drive
Verified by IsItAGoodCar Research Team

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.
2006–20072009–2011
Check a 2008 Lexus IS (XE20) by Registration