Segment:
Compact Executive Sedan
Target Audience:
Enthusiasts seeking a sporty European sedan with distinct styling.
Key Competitors:
BMW 3 Series (E36), Mercedes-Benz C-Class (W202), Audi A4 (B5).
Platform:
Shared platform with Fiat Tipo.
Styling:
Designed by Pininfarina, featuring a distinctive aggressive front fascia and spoiler.
Performance Orientation:
Known for its engaging driving dynamics and performance-oriented variants.
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of all engine components.
Engine Management:
Ignition system, fuel injection system, emissions control, sensor diagnostics.
Transmission Manual:
Clutch system, gearbox overhaul, gearshift linkage, lubrication.
Transmission Automatic:
Torque converter, planetary gears, hydraulic control, electronic control unit (ECU) diagnosis.
Drivetrain:
Front-wheel drive (FWD) components, driveshafts, constant velocity (CV) joints, differentials.
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment specifications.
Steering:
Power steering system, steering rack, tie rods, steering column, lubrication.
Brakes:
Front and rear brake systems (disc/disc or disc/drum configurations), hydraulic system, ABS components, brake fluid specifications.
Electrical System:
Battery, alternator, starter motor, lighting systems, wiring diagrams, fuses, relays.
Body And Chassis:
Body panel repair, door mechanisms, glass replacement, interior trim removal and installation, structural components.
HVAC:
Heating, ventilation, and air conditioning (HVAC) system diagnosis, refrigerant handling, component replacement.
Routine Maintenance:
Oil and filter changes, fluid level checks and top-offs, spark plug replacement, air filter replacement.
Scheduled Maintenance:
Timing belt replacement, coolant flush and replacement, brake fluid flush.
Disassembly Assembly:
Step-by-step instructions for removing and reinstalling major components and sub-assemblies.
Troubleshooting:
Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting guides.
Repair Rebuilding:
Detailed instructions for repairing or rebuilding specific components and systems.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all vehicle systems.
Torque Specifications:
Precise torque values for all critical fasteners.
Depth:
Comprehensive coverage suitable for major overhauls and advanced diagnostics.
Engine Code Examples:
For the 1998 model year, common engines included the 2.0L Twin Spark (16v) and potentially 1.8L and 2.5L V6 variants.
Power Output Range:
Typically ranging from approximately 140 hp (1.8L) to 190 hp (2.0L Twin Spark).
Torque Output Range:
Corresponding torque figures would vary by engine, generally in the 170-220 Nm range for the 2.0L.
Injection Type:
Multi-point fuel injection (MPI), often with electronic control.
Recommended:
Unleaded Petrol (Gasoline)
Twin Spark:
The 2.0L Twin Spark engine features two spark plugs per cylinder for improved combustion efficiency and performance.
Type:
5-speed Manual Transmission
Type:
Some models may have offered a 4-speed Automatic Transmission.
Gear Ratios:
Specific gear ratios are detailed within the manual for each engine/transmission combination.
Manual Transmission Fluid:
Refer to manual for specific API GL-4 or GL-5 grade gear oil recommendations (e.g., SAE 75W-90).
Automatic Transmission Fluid:
Refer to manual for specific ATF type (e.g., Dexron III or equivalent).
Length:
Approx. 4370 mm (172.0 in)
Width:
Approx. 1700 mm (66.9 in)
Height:
Approx. 1420 mm (55.9 in)
Dimension:
Approx. 2570 mm (101.2 in)
Curb Weight:
Varies by engine and trim, typically ranging from 1300-1450 kg (2866-3197 lbs).
Euro Ncap:
Euro NCAP crash test data for the 155 is limited for this specific year, but the model generally performed moderately in contemporary tests.
ABS:
Anti-lock Braking System (ABS) typically standard or optional depending on trim level.
Traction Control:
Traction control systems (ASR) were available on some performance-oriented models.
Airbags:
Driver and passenger airbags were common.
Seatbelts:
Pre-tensioning front seatbelts.
Oil Change:
Recommended every 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first, using quality synthetic oil.
Timing Belt:
Critical: Recommended replacement every 60,000-80,000 km (36,000-50,000 miles) or 4-5 years, especially for Twin Spark engines due to potential catastrophic failure if it breaks.
Coolant Flush:
Recommended every 2-3 years.
Engine Oil:
Refer to manual for specific viscosity grade (e.g., 10W-40, 15W-40) and API/ACEA specifications. Often requires oils with specific additive packages for Twin Spark engines.
Coolant:
Ethylene glycol-based antifreeze. Refer to manual for specific type and mixture ratio (typically 50/50 with distilled water).
Brake Fluid:
DOT 3 or DOT 4, depending on original specification. Regular flushing is recommended.
Twin Spark Ignition:
Potential for wear on spark plug wells, ignition coil issues, and the importance of using the correct spark plugs and replacement intervals.
Rust Corrosion:
Areas prone to rust, particularly around wheel arches, sills, and the underside. Regular inspection and undersealing are beneficial.
Suspension Bushings:
Wear on suspension bushings can lead to imprecise handling and knocking noises.
Electrical Gremlins:
Older Italian cars can sometimes exhibit minor electrical gremlins; comprehensive wiring diagrams in the manual are essential for diagnosis.
Legacy:
Alfa Romeo has a long-standing reputation for producing stylish, sporty, and driver-focused cars with a rich motorsport heritage.
Introduction:
The Alfa Romeo 155 was introduced in 1992 as a replacement for the Alfa Romeo 75. The 1998 model represents a later iteration of the original design.
Facelifts:
A significant facelift occurred in 1995, which included updated styling, revised interiors, and improved engines, impacting the 1998 model.
Production Period:
1992-1998
Manufacturing Location:
Italy
