Lexus RX III (XU30) (2003 – 2009)

Reliability score : 8.8/10

The XU30 type Lexus RX corresponds to the 2nd generation of the brand's luxury SUV (although sometimes confused with the 3rd generation depending on the market, the true 3rd being the 2008 AL10). Launched in 2003, it redefined the premium SUV segment by prioritizing comfort, ride silence, and unparalleled reliability compared to its German competitors. It is especially famous for introducing the RX 400h in 2005, the world's very first premium hybrid SUV. Facelifted in 2006 (introduction of the 3.5L engine on the RX 350), this model ages exceptionally well. Its build quality (notably the factory assemblies in Kyushu, Japan, and Cambridge, Canada) makes it one of the most robust used vehicles of its decade, despite a few peripheral weaknesses related to age.

✅ Strengths

⚠️ Weaknesses

🎯 Verdict

The second-generation Lexus RX (XU30) is a true monument of reliability. If you are looking for a used premium SUV on a budget, it is one of the safest choices on the market, far ahead of its European counterparts from the same era. The RX 300 is a sensible choice, indestructible if maintenance is kept up. The RX 350 offers superior driving pleasure but requires strict verification of the VVT-i line. Finally, the RX 400h remains an excellent choice to reduce fuel consumption, provided you budget for a potential reconditioning of the high-voltage battery given its age. Avoid models equipped with air suspension if possible to limit costs.

Common issues

Fuite de la durite d'huile VVT-i (moteur 3MZ-FE, RX330) High
🔧 100 000 – 180 000 km
💶 300 – 600 €
Vérifier régulièrement le niveau d'huile et l'absence de fuites sous le véhicule.
Problèmes de transmission automatique (changement de vitesse brusque, solénoïdes) High
🔧 150 000 – 250 000 km
💶 1 200 – 2 500 €
Assurer des vidanges de fluide de transmission régulières et de qualité.
Défaillance de l'alternateur Medium
🔧 150 000 – 220 000 km
💶 400 – 700 €
Surveiller les voyants de batterie et les baisses de tension électrique.
Fuite ou défaillance de la pompe à eau Medium
🔧 120 000 – 200 000 km
💶 450 – 800 €
Vérifier le niveau de liquide de refroidissement et les signes de surchauffe.

Estimated maintenance costs

Oil change £70 – 130
Timing belt £500 – 1 000 (pour RX330, moteur 3MZ-FE)
Complete brakes £220 – 480
Estimated annual budget £550 – 1 100

Indicative estimates (independent garage, UK market). Prices vary by region and year.