The Alfa Romeo 155 1998 Factory Service Repair Manual is a comprehensive guide for maintaining and repairing your vehicle. Packed with detailed instructions and illustrations, this manual empowers you to perform a wide range of services and repairs, saving you time and money. Dive deep into the intricacies of your Alfa Romeo 155, with this manual providing everything from general maintenance and troubleshooting to in-depth breakdowns of specific systems. It covers essential aspects like engine service and repair, transmission maintenance, brake system diagnostics, electrical system troubleshooting, suspension adjustments, and cooling system care. You'll find detailed wiring diagrams to simplify electrical system work, and specific guidance on fuel injection, emission systems, heater and air conditioner functions, engine control systems, chassis and body components, restraint systems (like airbags), interior features, differential and drive components, and axle maintenance. Each repair procedure is outlined step-by-step with clear illustrations and annotations. Notes, cautions, and warnings highlight critical information, ensuring you understand the intricacies of each task. This manual is your comprehensive resource for keeping your Alfa Romeo 155 in top shape.

The Alfa Romeo 155, produced from 1992 to 1998, was a compact executive car that represented a significant step forward for the Italian marque. It was the first Alfa Romeo to feature a unibody construction, a departure from the traditional body-on-frame design of its predecessors. This innovative approach resulted in a lighter and more rigid chassis, enhancing both handling and safety. The 155 was also notable for its adoption of a double wishbone front suspension and a multi-link rear suspension, contributing to its sporty and agile character. The range of engines offered in the 155 included both gasoline and diesel options, with power outputs ranging from 110 to 190 horsepower. The high-performance 155 V6 TI, equipped with a 2.5-liter V6 engine producing 190 horsepower, became a motorsport legend, winning the 1993 and 1994 World Touring Car Championships. The 1998 Alfa Romeo 155, being the final year of production, featured a number of updates and refinements compared to earlier models. The exterior design remained largely unchanged, showcasing the 155's timeless classic lines, but the interior received a subtle revamp with improved materials and ergonomics. The engine lineup was also streamlined, with the emphasis placed on more fuel-efficient options. The 155, however, remained true to its sporting heritage, offering a balanced blend of performance, handling, and comfort. This was particularly evident in the 155 Q4 model, which featured Alfa Romeo's innovative Q4 all-wheel-drive system, providing superior traction and stability in all conditions. The 1998 Alfa Romeo 155 represented a fitting culmination of a successful and influential model, leaving its mark on the automotive landscape as a stylish, capable, and truly engaging driving experience.