Lexus IS (XE10)
The first-generation Lexus IS (XE10) arrived in the UK in May 1999 as a direct and ambitious rival to the BMW 3 Series. Known originally as the IS 200, it featured a characterful 2.0-litre straight-six (1G-FE) paired with a sweet six-speed manual gearbox or four-speed automatic, driving the rear wheels through double-wishbone suspension at both axles. Stylistically distinct, the XE10 pioneered the chronometer-style instrument cluster, machined metal gear knob, and clear-lens rear lamp clusters that spawned an entire aftermarket trend. In autumn 2001, the range broadened with the 3.0-litre 2JZ-GE straight-six in the IS 300 and the versatile five-door SportCross estate. In Britain, the IS built a passionate following for its engaging rear-drive chassis balance, bulletproof mechanical reliability, and vault-like build quality. Today, it is revered as a modern classic and entry-level enthusiast drift or track car. While engine internals and gearboxes are exceptionally tough, buyers must check for rusted sills and rear wheel arches, worn lower ball joints, and CD changer mechanical errors.
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Common Faults & Reliability
These are the most common documented problems for the Lexus IS (XE10), sorted by their typical impact and frequency.
Front Lower Suspension Ball Joint Wear and Separation
high severityThe front lower ball joints on the XE10 double-wishbone suspension carry substantial dynamic loads. Over time, the internal nylon seat wears out and the protective rubber boot perishes, allowing water and road grit to enter and accelerate wear. In advanced cases, the ball joint develops severe play and can pull out of its housing entirely, causing the front wheel to collapse into the wing. This is a well-known MOT failure and safety risk on older UK cars.
Rear Outer Sill and Wheel Arch Structural Rust
medium severityFirst-generation IS models suffer from serious structural corrosion in the rear outer sills, jacking points, and rear wheel arch seams. Mud and road salt sprayed by the rear tyres collect in the unsealed cavity between the inner arch liner and outer sill panel. In the wet UK climate, moisture sits trapped against the foam sound deadening and untreated metal seams, rotting the sill from the inside out. Once rust bubbles through the exterior paintwork, extensive fabrication and welding are required for MOT compliance.
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