The Maserati Biturbo 1987-1992 Workshop Factory Service Repair Manual is a comprehensive resource for anyone seeking in-depth technical information on these iconic Italian sports cars. This manual is designed to meet the needs of Maserati technicians worldwide, providing detailed instructions and specifications for all aspects of the Biturbo's maintenance and repair.

The manual covers a wide range of Biturbo models, catering to both 2-liter and larger engine variants. This includes:

**2-liter cars:**

* Biturbo Coupe
* Biturbo S
* Biturbo Si
* Biturbo Spider
* Biturbo i
* Biturbo 420
* Biturbo 222
* Biturbo 2.24V
* Biturbo 422

**2.5-liter cars:**

* Biturbo SE
* Biturbo Spider
* Biturbo 425

**2.8-liter cars:**

* Biturbo 222E
* Biturbo Spyder i
* Biturbo 228
* Biturbo 228i
* Biturbo 430
* Biturbo Karif

The manual offers detailed information on a range of topics, including:

* **Engine Maintenance and Repair:** Comprehensive coverage of engine components, including the lubrication system, cooling system, fuel system, ignition system, and exhaust system.
* **Transmission and Drivetrain:** Detailed instructions for servicing and repairing the transmission, axles, differentials, and related components.
* **Brakes:** In-depth information on the braking system, including adjustments, bleeding, and replacement of components.
* **Suspension and Steering:** Comprehensive coverage of the suspension and steering systems, including alignment procedures, shock absorber replacement, and component adjustments.
* **Electrical System:** Detailed diagrams and instructions for diagnosing and repairing electrical components, including the wiring harness, lighting system, and electrical accessories.
* **Bodywork and Interior:** Information on repairing body panels, upholstery, and interior components.

The manual's detailed diagrams, clear instructions, and troubleshooting guides make it an invaluable asset for both professional mechanics and dedicated home enthusiasts.

The Maserati Biturbo, a sporty grand tourer produced from 1981 to 1994, marked a significant shift in the Italian marque's history. While Maserati had established itself with luxurious and powerful vehicles like the iconic 3500 GT and the legendary Ghibli, the Biturbo was introduced as a more affordable and compact model, targeting a wider audience. Its name, "Biturbo," aptly reflected the heart of the car – a twin-turbocharged 2.0-liter V6 engine. This engine, despite its relatively small displacement, delivered impressive power output, ranging from 180 to 280 horsepower depending on the version. The Biturbo’s lightweight construction, featuring a steel monocoque chassis, contributed to its agile handling and sporty characteristics.

Despite its intended mass appeal, the Biturbo faced a number of challenges. Early models suffered from reliability issues, primarily associated with the complex turbocharged engine and its accompanying systems. These problems, coupled with questionable build quality, led to a mixed reception from both the public and critics. Nonetheless, the Biturbo remained in production for over a decade, witnessing various iterations and special editions, including the Spyder, the 420, and the Si. While the Biturbo may not have achieved the same level of acclaim as its predecessors, it undoubtedly played a crucial role in broadening Maserati's market reach and securing its future. The 1987-1992 model years encompassed some of the most significant advancements in the Biturbo's evolution, including improved engine reliability, revised suspension, and more refined styling. This specific model year range represents a pivotal period for the Biturbo, showcasing the car's continued development and appeal to enthusiasts.