🏷️ Basic Information

Make:

Alfa Romeo

Model:

155

Year:

1997

Identification Codes:

The manual will detail VIN (Vehicle Identification Number) decoding and component identification codes for accurate parts referencing and diagnosis.

👋 Introduction

Vehicle Segment:

Compact Executive Sedan

Key Competitors:

BMW 3 Series (E36), Mercedes-Benz C-Class (W202), Audi A4 (B5), Volvo S40/V40.

Manual Value Proposition:

Comprehensive, dealer-level service and repair information in a convenient, instantly downloadable PDF format, compatible with multiple devices. No additional software required.

📋 Manual Details

Systems Covered:

Service Information, Identification Codes, Jacking and Lifting, Noise Vibration and Harshness, Suspension, Wheels and Tyres, Driveline System, Driveshaft, Bearings, Brake System, Anti-Lock Control, Steering System, Engine System, Fuel Charging and Controls, Accessory Drive, Starting System, Engine Ignition, Engine Emission Control, Intake Air Distribution, Emissions, Electronic Engine Controls, Manual Transmission, Clutch Controls, Exhaust System, Fuel System, Acceleration Control, Speed Control, Climate Control System, Air Distribution, Control Components, Instrument and Warning Systems, Battery and Charging System, Information and Entertainment Systems, Lighting, Electrical Distribution, Electronic Feature Group, Body System, Body Panels, Interior Trim, Mirrors, Seating, Glass, Frames and Mechanisms, Instrument Panel and Console, Wipers and Washers, Roof, Bumpers, Safety Belt System, Body Repairs, Metal Repairs, Subframe and Mounting System

Page Count:

Unknown (Digital PDF, potentially extensive)

Manual Type:

Workshop Service and Repair Manual

Scope Of Coverage:

Encompasses all aspects from basic maintenance to complex repairs, designed to empower owners and independent workshops.

Content Style:

Dealer-level factory manual style, indicating comprehensive diagrams, schematics, and detailed instructions.

Language:

English (implied by product description)

Format:

PDF

📖 Manual Coverage

Engine Systems:

Comprehensive coverage of engine operation, maintenance, diagnosis, and repair, including fuel charging and controls, ignition, emission control, electronic engine controls, accessory drive, and starting system.

Drivetrain Systems:

Detailed information on the manual transmission, clutch controls, driveline system, driveshaft, and bearings.

Braking Steering Suspension:

In-depth coverage of the brake system, including Anti-Lock Control, steering system, suspension components, wheels, and tires.

Electrical Electronics:

Extensive documentation on the electrical distribution, battery and charging system, lighting, instrument and warning systems, and electronic feature groups.

Climate Control Comfort:

Detailed sections on the climate control system, including air distribution and control components.

Body Interior:

Comprehensive coverage of body systems, including body panels, interior trim, mirrors, seating, glass, frames, mechanisms, instrument panel, console, wipers, washers, roof, and bumpers. Includes body repairs and metal repairs.

Engine Ignition System:

Detailed procedures for ignition timing, spark plug replacement (including the dual-spark system), coil packs, and related components.

Emissions Control:

Information on emissions control systems, catalytic converters, oxygen sensors, and related diagnosis and repair.

Body Repairs Metal Repairs:

Procedures for structural repairs, panel replacement, and rust prevention, essential for maintaining vehicle integrity.

Driveline System Components:

Detailed information on differentials, axles, and associated components.

Steering System Components:

Covers steering rack, power steering pump, tie rods, and related systems.

Fuel System Components:

Fuel pump, injectors, fuel filter, fuel tank, and fuel pressure regulation.

Accessory Drive Components:

Serpentine belt, pulleys, alternator, air conditioning compressor, and power steering pump removal/installation.

Starting System Components:

Starter motor, solenoid, and ignition switch.

Engine Emission Control Components:

PCV system, EGR system (if applicable), vacuum lines, and emissions sensors.

Intake Air Distribution:

Air filter housing, intake manifold, throttle body, and associated sensors.

Electronic Engine Controls Components:

ECU (Engine Control Unit), sensors (MAP, TPS, O2, Coolant Temp), actuators, and wiring.

Clutch Control Components:

Clutch master cylinder, slave cylinder, hydraulic lines, and pedal assembly.

Exhaust System Components:

Exhaust manifold, catalytic converter, muffler, exhaust pipes, and hangers.

Fuel System Maintenance:

Fuel filter replacement, injector cleaning, fuel pressure testing.

Acceleration Speed Control Components:

Throttle cables, cruise control actuators.

Climate Control Air Distribution:

HVAC blower motor, controls, blend doors, cabin air filter replacement.

Instrument Warning Systems:

Instrument cluster components, warning lights, warning chimes, speedometer, tachometer diagnostics.

Battery Charging System Components:

Battery testing, alternator testing and replacement, starter motor testing.

Information Entertainment Systems:

Radio, speakers, antenna, and related wiring.

Lighting System Components:

Headlights, taillights, turn signals, interior lighting, fuses, relays, and wiring.

Electronic Feature Group Components:

Central locking, electric windows, remote keyless entry (if equipped).

Body Panel Replacements:

Procedures for replacing fenders, doors, hood, trunk lid.

Interior Trim Removal Installation:

Door panels, dashboard trim, headliner, carpeting.

Glass Frames Mechanisms:

Window regulator repair, door glass replacement, windshield/rear glass installation.

Instrument Panel Console Disassembly:

Accessing and removing the dashboard for repairs or upgrades.

Wipers Washers System:

Wiper motor, linkages, washer pump, nozzles, and reservoir.

Roof Systems:

Sunroof operation and repair, if applicable.

Safety Belt System:

Seat belt inspection, repair, and replacement.

Maintenance Procedures:

Routine maintenance, scheduled servicing, fluid changes, filter replacements, inspection procedures.

Repair Procedures:

Step-by-step repair instructions for all major vehicle systems, from minor adjustments to complete component overhauls.

Diagnostic Troubleshooting:

Troubleshooting guides, diagnostic flowcharts, identification codes, and procedures for diagnosing common issues.

Special Tools Required:

The manual will list any specialized tools required for specific procedures, a critical aspect for accurate repairs.

Depth Of Information:

Dealer-level factory manual standard, covering all elements of service and repair, implying a high level of technical detail suitable for professional technicians and advanced DIY mechanics.

Diagnostic Charts:

The manual will likely include diagnostic flowcharts and symptom-based troubleshooting guides.

📊 Manual Specifications

File Format:

PDF

Accessibility Compatibility:

Compatible with PC, Mac, Smartphone, or Tablet, indicating broad usability.

Print Quality:

High (implied by 'dealer level factory manuals' and PDF format, suitable for printing)

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Variants Covered:

Likely includes common 155 variants of the 1997 model year, such as the Twin Spark (2.0L, 8v and 16v) and potentially V6 variants (2.5L, 12v and 24v) depending on market.

Horsepower Torque Ranges:

Specific figures vary by engine: 2.0L Twin Spark approx. 150-155 hp; 2.5L V6 approx. 166-190 hp. Manual will detail these.

Fuel Injection Type:

Electronic Fuel Injection (EFI) is standard for all 1997 models.

Engine Codes:

The manual will likely reference specific Alfa Romeo engine codes for each variant (e.g., AR16701 for the 2.0 Twin Spark 16v, AR16702 for the 2.5 V6).

🔧 Transmission

Standard Transmission Type:

5-speed Manual Transmission

Optional Transmission Type:

4-speed Automatic Transmission (likely available on some variants)

Clutch System:

Hydraulically operated single dry plate clutch is standard; manual will detail actuation and maintenance.

📐 Dimensions

Wheelbase:

Approx. 2595 mm (102.2 in)

Length:

Approx. 4400 mm (173.2 in)

Width:

Approx. 1700 mm (66.9 in)

Height:

Approx. 1420 mm (55.9 in)

Curb Weight:

Varies by engine and configuration, typically 1300-1450 kg (2866-3197 lbs)

🛡️ Safety Features

Crash Test Performance:

Likely underwent Euro NCAP or equivalent testing for its era; manual will provide chassis reinforcement and safety system repair details.

ABS Availability:

Anti-lock Braking System (ABS) was an optional or standard feature on higher trims for 1997.

Airbag Systems:

Driver-side airbag was standard on most models by 1997; passenger airbags might be optional. Manual covers SRS system components and diagnostics.

💡 Technology Features

Audio System Options:

Factory fitted radio/cassette or CD players were common. Manual will cover wiring diagrams and basic troubleshooting for these systems.

Cruise Control Availability:

Optional on higher trim levels. Manual will cover operation and repair of the cruise control system if equipped.

Wiring Harness Information:

Extensive wiring diagrams for all electrical systems are a key feature of such manuals, aiding in diagnosis and repair of electronic faults.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000-15,000 km (6,000-9,000 miles) or 12 months, with specific recommendations detailed in the manual.

Engine Oil Grade:

Dependent on engine type and climate, but common grades like 10W-40 or 15W-40 are likely. Manual will specify exact API/ACEA ratings and viscosities.

Coolant Type:

Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Manual will specify exact type and capacity.

Transmission Fluid Type:

Specific manual transmission fluid (MTF) grades will be detailed, likely GL-4 rated.

Brake Fluid Type:

DOT 4 is typically specified. The manual will confirm the exact type and bleeding procedures.

Power Steering Fluid Type:

Specific hydraulic fluid for power steering systems, detailed in the manual.

Common Wear Items:

Timing belt (crucial maintenance item for Twin Spark engines, needs regular replacement to prevent catastrophic engine damage), suspension bushings, exhaust system components, electrical connectors, and potential for rust in certain areas.

Engine Specific Considerations:

Twin Spark engines require meticulous maintenance for their dual spark plug design. V6 engines are known for robustness but can be complex to service.

📚 Vehicle History

Alfa Romeo Legacy:

Alfa Romeo has a long history of producing sporting and stylish cars, known for their dynamic handling and distinctive Italian design.

155 Development:

The Alfa Romeo 155 was introduced in 1992 as a replacement for the Alfa Romeo 75. It marked a shift to a more modern platform and design. The 1997 model year represents a later iteration, often with updated styling and technology, and following the extensive motorsport success of the 155 V6 TI in the DTM.

Production Years:

1992-1997 (followed by the Alfa Romeo 156).

🏆 Awards & Recognition

Motorsport Achievements:

The Alfa Romeo 155 gained significant recognition through its successful participation in touring car racing, most notably winning the German Touring Car Masters (DTM) in 1993 with the 155 V6 TI, driven by Nicola Larini.