Known Faults Database

Lexus IS Common Problems & Known Faults (UK)

If you are considering buying a used Lexus IS, there are several major reliability issues worth knowing about first. Our garage database tracks 3 known faults for this model, 2 of them rated high severity. Every one below is a repair bill a seller has good reason not to mention.

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Lexus IS 2nd Gen (XE20) (2005-2012) problems

Engine/EmissionsMedium severity📝 Editorial

Direct injection design causing severe carbon buildup on intake valves

Rough guide

£400-800

Typical symptoms

rough idle when cold
engine hesitation or misfire
check engine light (VSC light)

Affected vehicles

Engines:: IS250 2.5 V6
Typical mileage:: 60000-100000 miles

🔍 We have a specific pre-purchase check for this faultCheck an advert →

Engine/EmissionsHigh severity📝 Editorial

Design flaw leading to severe carbon buildup, excessive pressure, and head gasket failure

Rough guide

£2000-4000

Typical symptoms

coolant spraying into the engine bay
overheating
high oil consumption and white smoke

Affected vehicles

Engines:: 2.2 Diesel (220d)
Typical mileage:: 60000-120000 miles

🔍 We have a specific pre-purchase check for this faultCheck an advert →

Lexus 1st Gen IS (XE10) / 2nd Gen GS (S160) (1998-2005) problems

SuspensionHigh severity💬 Owner reports

Front lower ball joints catastrophically fail, causing the front wheel to collapse into the wheel arch

Rough guide

£300-600

Typical symptoms

creaking or squeaking noise from the front suspension when turning
clunking over bumps
steering feels vague or wanders

Affected vehicles

Engines:: IS200 / GS300
Typical mileage:: 80000-140000 miles

🔍 We have a specific pre-purchase check for this faultCheck an advert →

Repair costs are typical UK ranges, not quotes. Actual cost depends on condition and garage.Data last verified: June 2026