Lexus IS 300h Hybrid System – How It Works & Maintenance Malaysia
The IS 300h uses Toyota Hybrid System II (THS II) with a 2AR-FXE 2.5L Atkinson-cycle engine, MG1/MG2 motor generators, and a nickel-metal hydride (NiMH) high-voltage battery. The eCVT provides seamless power delivery with no traditional gear changes. Key maintenance: inverter coolant every 100,000 km, 12V aux battery every 4–6 years, and no additional hybrid-specific oil — same 0W-20 as a conventional engine.
Our Lexus specialist workshop in Bandar Sri Damansara handles all IS 250/300/350 Hybrid System requirements with genuine and OEM-grade parts. We use Techstream-compatible diagnostics to accurately read Lexus-specific fault codes and ensure all service procedures meet factory specifications.
The IS 250/300/350 (2006–2020) uses 2.5L V6 / 3.5L V6 / 2.5L Hybrid with 6AT / 8AT / eCVT transmission. Understanding the specific requirements of this drivetrain combination is essential for proper maintenance and longevity in Malaysia's hot and humid climate.
As a Lexus specialist, we understand the nuances between Lexus and its Toyota counterparts — while many platform components are shared, Lexus applies different calibrations, torque specifications, and material grades that require specialist knowledge. Contact us for a transparent quote before any work begins.
Techstream diagnostics, correct oil spec, OEM parts — 30–40% less than Lexus dealer.
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