This comprehensive Service Repair Manual provides in-depth information for the Infiniti M30, covering model years 1990, 1991, and 1992. It is designed to be a helpful resource for both experienced mechanics and DIY enthusiasts, offering detailed instructions and illustrations to guide you through every repair and maintenance procedure.

The manual covers a wide range of topics, including:

* **General Information:** Provides an overview of the vehicle, its specifications, and important safety information.
* **Maintenance:** Covers regular maintenance schedules, fluid changes, and other routine tasks essential for keeping your Infiniti M30 in optimal condition.
* **Engine Mechanical:** Detailed information on the engine, including its components, operation, and troubleshooting procedures.
* **Engine, Lubrication & Cooling Systems:** Explains the intricacies of the engine’s lubrication and cooling systems, offering guidance on maintenance and repair.
* **Engine Control System:** Provides a thorough understanding of the engine control system, from sensors to actuators, covering diagnostics and repair procedures.
* **Accelerator Control, Fuel & Exhaust Systems:** Covers the systems responsible for fuel delivery, air intake, emission control, and exhaust. Offers detailed insights into their functioning and troubleshooting techniques.
* **Clutch:** In-depth information on the clutch system, including its components, operation, adjustments, and troubleshooting.
* **Manual Transaxle:** Covers the manual transmission, with detailed instructions for repair, adjustment, and troubleshooting.
* **Automatic Transaxle:** Provides comprehensive information on the automatic transmission, covering its internal components, operation, repair, and troubleshooting.
* **Front Axle & Front Suspension:** Explains the design and function of the front suspension and axle, including inspection, repair, and adjustment procedures.
* **Rear Axle & Rear Suspension:** Comprehensive coverage of the rear suspension and axle, offering detailed instructions for inspection, repair, and adjustment.
* **Brake System:** A complete guide to the braking system, covering components, operation, maintenance, troubleshooting, and repair procedures.
* **Steering System:** In-depth information on the steering system, including its operation, components, adjustments, and troubleshooting.
* **Restraint System:** Explains the safety features related to the restraint system, offering guidance on inspection, repair, and replacement.
* **Body & Trim:** Covers the vehicle's body, interior trim, and exterior features, offering instructions for repair and replacement.
* **Heater & Air Conditioner:** Provides details on the heating and air conditioning system, including components, operation, troubleshooting, and repair procedures.
* **Electrical System:** Comprehensive information on the electrical system, including wiring diagrams, troubleshooting, and repair procedures.
* **Alphabetical Index:** A handy index for quick and easy reference to any topic within the manual.

This manual is packed with detailed illustrations, diagrams, wiring schematics, and specifications to help you fully understand the complex workings of your Infiniti M30. With this comprehensive resource, you can confidently tackle a wide range of repairs and maintenance tasks, saving time and money in the process.

The Infiniti M30, produced from 1990 to 1992, was the first generation of the Infiniti M luxury sedan, marking the brand's entry into the premium mid-size market. This car was a significant departure from Nissan's offerings at the time, boasting a sophisticated design and an advanced powertrain. The M30 featured a sleek, angular body with a distinctive, low-slung profile. The interior was a testament to luxury, with high-quality materials, comfortable seats, and a comprehensive range of features. The M30 was available with two engine options: the potent VG30DE 3.0 liter V6 engine, generating 162 horsepower, or the more powerful VG30DET 3.0 liter turbocharged V6 engine, producing a substantial 222 horsepower. Both engines were mated to a smooth-shifting four-speed automatic transmission, providing a balance of power and efficiency.

The Infiniti M30 was designed for both performance and comfort, offering a refined driving experience. Its suspension system provided a balance of ride and handling, while the brakes delivered strong stopping power. The M30 also featured a variety of standard features including power steering, air conditioning, and power windows. Despite its luxurious nature, the M30 was also renowned for its reliability and durability, making it a popular choice for drivers seeking a premium sedan with a long lifespan. The M30's introduction helped to establish Infiniti as a serious contender in the luxury car market, paving the way for the brand's future success. The Infiniti M30 Service Repair Manual provides comprehensive information on the vehicle's mechanical systems, enabling owners and technicians to perform maintenance and repair procedures effectively.