🏷️ Basic Information

Make:

Alfa Romeo

Model:

155

Body Style:

Compact Executive Sedan/Estate

Chassis Code:

Type 167

👋 Introduction

Positioning:

The Alfa Romeo 155 was a significant model for Alfa Romeo, aiming to compete in the premium compact executive segment. Known for its sporty driving dynamics and distinctive Italian styling.

Competitors:

Competed against vehicles like the BMW 3 Series (E36), Mercedes-Benz C-Class (W202), Audi A4 (B5), and Volvo 850.

Distinctive Attributes:

Front-wheel drive and permanent all-wheel drive (Q4) options, range of performance-oriented engines, advanced suspension design for its era.

📋 Manual Details

Geographic Coverage:

Global (based on manufacturer's original documentation)

Estimated Page Count:

1000+

Type:

Service and Repair Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Powertrain:

Engine, transmission, clutch, exhaust, fuel system

Chassis:

Suspension (front and rear), steering, brakes (front and rear), wheels, tires

Electrical:

Battery, charging system, ignition system, lighting, instrumentation, body electricals, ECU diagnostics

Bodywork:

Body and frame, interior trim, exterior trim, doors, windows, roof, body repair, painting

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections

Diagnostics:

Troubleshooting guides, fault code interpretation, diagnostic procedures for all major systems

Repair:

Detailed step-by-step repair procedures for all components and systems, including engine rebuilds, transmission overhauls, suspension and brake repairs, electrical component replacement

Assembly Disassembly:

Complete instructions for the removal and installation of all vehicle components

Depth:

Comprehensive: Covers basic maintenance to advanced mechanical and electrical diagnostics and repair. Suitable for professional mechanics and advanced DIY enthusiasts.

📊 Manual Specifications

File Type:

PDF

Quality:

High-resolution scanned pages, clear text and diagrams, printable sections

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Options:

Various inline-4 (1.6L, 1.8L, 2.0L Twin Spark) and V6 (2.5L Busso V6) gasoline engines. Also diesel options (1.9 TD, 2.5 TD).

Horsepower Range:

Approximately 100 hp (1.6L) to 170 hp (2.5L V6), with performance variants like the 155 Q4 reaching higher outputs.

Injection Type:

Multi-point fuel injection (MPI) for gasoline engines. Turbocharged direct injection for diesel variants.

Common Gasoline Codes:

167.051 (1.6 TS), 167.101 (1.8 TS), 167.054 (2.0 TS), 167.102 (2.0 TS 16V), 167.046 (2.5 V6)

Coolant Type:

Ethylene glycol-based coolant (e.g., Paraflu UP or equivalent) mixed with distilled water.

Spark Plugs:

Specific recommendations for Twin Spark engines (e.g., NGK BKR6EKPB or equivalent with two ground electrodes per cylinder).

🔧 Transmission

Transmission Type:

5-speed manual transmission standard on most models.

Automatic Transmission:

4-speed automatic transmission available on some models (e.g., 2.0 TS).

AWD System:

Permanent all-wheel drive (Q4 system) available on performance variants, often featuring a Torsen center differential.

Manual Transmission Fluid:

API GL-4 SAE 75W-90 or SAE 75W-80 synthetic gear oil (e.g., Selenia WR/K or equivalent).

Automatic Transmission Fluid:

Specific ATF (Automatic Transmission Fluid) type, refer to manual for exact specification (e.g., Dexron II/III or equivalent).

Clutch Type:

Hydraulically operated single dry plate clutch.

📐 Dimensions

Length:

Approximately 4250 mm (167.3 in)

Width:

Approximately 1700 mm (66.9 in)

Height:

Approximately 1420 mm (55.9 in)

Curb Weight:

Varies by engine and drivetrain, typically 1250-1450 kg (2755-3197 lbs)

Gross Vehicle Weight Rating:

Refer to specific model plate

Trunk Volume:

Approximately 460 liters (16.2 cu ft) for sedan

🛡️ Safety Features

Euro Ncap Results:

Limited data available for original crash tests; later models may have been tested retrospectively, but the 155 predates widespread Euro NCAP adoption.

ABS:

Anti-lock Braking System (ABS) available, standard on higher trims and later models.

Traction Control:

Traction control (ASR) available on some Q4 models.

Airbags:

Driver airbag standard on later models; passenger airbag optional or standard on top trims.

Seatbelts:

Three-point seatbelts with pretensioners for front occupants.

💡 Technology Features

Audio System:

Original systems typically included cassette players or early CD players with basic speaker configurations. Aftermarket upgrades are common.

Cruise Control:

Optional on higher trims and later models.

Cellular Features:

N/A (Predates widespread integrated cellular connectivity).

Climate Control:

Manual air conditioning standard on many models; automatic climate control available on some higher-spec variants.

🔧 Maintenance

Oil Change Interval:

Typically 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first. Refer to manual for specific engine.

Timing Belt Replacement:

Crucial for Twin Spark engines. Intervals vary, typically 60,000-90,000 km (36,000-54,000 miles) or 4-5 years. Failure can cause catastrophic engine damage.

Engine Oil Specification:

API SG/SH or ACEA A2/A3, viscosity typically 10W-40 or 10W-50 synthetic. Specific recommendations in manual (e.g., Selenia Star/K).

Coolant Capacity:

Approximately 6-7 liters (1.59-1.85 US gallons)

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Power Steering Fluid:

Hydraulic fluid meeting specific Alfa Romeo standards (e.g., Tutela GI/E or equivalent).

Engine Issues:

Twin Spark ignition system (coil packs, spark plug wear), oil consumption in some higher mileage engines, potential for head gasket failure on older engines.

Electrical Issues:

Wiring loom degradation, sensor failures (e.g., Lambda sensor), ECU issues on some models.

Suspension Issues:

Wear in control arm bushings, ball joints, and drop links, leading to knocking noises and alignment issues.

Bodywork Corrosion:

Rust can affect wheel arches, sills, and the rear subframe mounts in certain climates.

Air Filter Part Number:

Varies by engine; common pattern part numbers include MANN-FILTER C27108/1 or equivalent.

Oil Filter Part Number:

Varies by engine; common pattern part numbers include MAHLE OC 5, FRAM PH5850, or equivalent.

📚 Vehicle History

Alfa Romeo Legacy:

Alfa Romeo has a long history of producing sporty and stylish cars with a focus on driving dynamics and Italian design.

Introduction Year:

1992

Facelift Year:

1995 (significant facelift with revised styling, interior, and engines).

Discontinuation Year:

1997

Production Location:

Pomigliano d'Arco, Naples, Italy

Production Volume:

Over 300,000 units produced.

Motorsport Legacy:

The 155 had a successful motorsport career, notably in touring car championships like the DTM, with drivers like Nicola Larini achieving victories.

🏆 Awards & Recognition

Automotive Journalism Awards:

Praised by automotive journalists for its sharp handling and engaging driving experience, particularly in Q4 and V6 guises.

Reliability Ratings:

Historically, reliability varied, with certain models (especially earlier ones) requiring more diligent maintenance than some German competitors. The manual is crucial for proactive maintenance.

Manufacturing Standards:

Manufactured to Fiat Group's automotive production standards of the era.