Description
Factory Lexus GS300 Workshop Manual (1998–2005)
This factory-level repair manual covers the second-generation Lexus GS300 (S160 chassis) sold in the US and worldwide from 1998 through 2005, delivering the complete technical data technicians and serious owners need for accurate diagnosis and repair.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 3.0L 2JZ-GE inline-six (naturally aspirated); 3.0L 2JZ-GTE inline-six (twin-turbo) |
| Diesel | N/A |
| Transmissions | A650E 5-speed automatic |
| Drive | RWD |
| Model Years | 1998–2005 |
| Badge Twins | Toyota Aristo (JDM S160) |
Common GS300 Repairs Covered
| System | Procedures |
|---|---|
| Timing Belt & Water Pump | 2JZ-GE timing belt R&R, tensioner replacement, water pump swap — a known high-mileage service item on this engine |
| Rear Air Suspension | Height sensor calibration, air strut replacement, compressor diagnostics — a common failure point on S160 models |
| Brake System | ABS module diagnostics, brake booster R&R, caliper overhaul, rotor and pad replacement procedures |
| Electrical & Wiring | Full wiring schematics, connector pinouts, climate control diagnostics, power window and door lock circuit repair |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does the timing belt on the 2JZ-GE need close attention?
The 2JZ-GE is an interference engine, meaning a snapped timing belt can cause severe valve and piston damage. Toyota/Lexus recommends replacement every 90,000 miles; the manual provides full step-by-step procedures, torque specs, and belt routing diagrams so the job is done correctly the first time.
Is the Lexus GS300 S160 related to any other vehicle?
Yes. The S160-generation GS300 shares its platform and 2JZ engine family with the JDM Toyota Aristo (V160 series). This manual covers the Lexus-badged variants sold in North America and other export markets from 1998 through 2005.
Does the manual cover the rear air suspension system?
Yes. The rear adaptive air suspension fitted to S160 GS300 models is fully documented, including compressor testing, air strut removal and installation, height sensor adjustment, and fault code diagnosis — all common service items as these vehicles age.
What format is the manual?
The manual is a PDF file delivered via instant download after purchase. It is fully searchable, printable, and compatible with any PDF reader on Windows, Mac, iOS, or Android devices. Re-downloads are available for life.
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