Alfa Romeo 155 manual 1992-98 (P/N PA49780016V002)

• Covers 1992–1998 Alfa Romeo 155 1.7 TS, 1.8 TS, and 2.0 TS variants with 4-door sedan configurations
• Official Alfa Romeo publication P/N PA49780016V002, originally issued in December 1995
• Provides 83 detailed torque specification tables and 14 electrical circuit diagrams for the Motronic M 2.10.3 and M 2.10.4 systems
• Serves as the necessary update for 16V Twin Spark engine service, bridging the gap for timing and injection diagnostic data missing in earlier base editions

Engine and Fuel System Documentation

Navigating the complexities of the Twin Spark 16V engine requires accurate factory data. This comprehensive 1,704-page publication delivers the technical depth necessary to properly maintain and troubleshoot these specific Italian powerplants. The manual details mechanical engine disassembly, timing belt procedures, and auxiliary system overhauls. Mechanics will find extensive coverage on the cooling system, clutch mechanisms, and braking components, alongside targeted diagnostic routines for the Bosch 5.3 ABS.

On the fuel delivery side, the documentation thoroughly outlines the Bosch Motronic M 2.10.3 and M 2.10.4 electronic systems. It provides precise component testing parameters for the hot-film mass airflow sensor, lambda probe, and EGR modulating solenoid valves.

Specification Highlights

Precision is critical when rebuilding tight-tolerance engines. The manual provides exacting factory specifications for every major component. For example, Class A engine main bearing journal diameters are mapped at exactly 52.988–52.994 mm. You will also find that the 16V intake valve clearance sits tightly at 0.10–0.23 mm, while the total coolant system capacity requires exactly 5 liters. Cylinder head bolt torque values follow a strict multi-stage sequence, finishing with 90° + 90° angles.

Working on high-pressure fuel injection systems or ABS hydraulics carries inherent physical risks. Always cross-reference these individual specifications with the complete factory tables before applying torque or disassembling pressurized lines. Sound professional judgment and adherence to standard workshop safety protocols are required when executing these heavy mechanical repairs.