Target Audience:
DIY car owners, independent workshops, and enthusiasts looking to perform their own maintenance and repairs on the Alfa Romeo 155.
Value Proposition:
Saves significant money on repair costs by empowering owners with detailed, step-by-step instructions and comprehensive technical data.
Ease Of Use:
Designed for ease of use with clear instructions, pictures, and diagrams, accessible on various devices.
Completeness:
Covers all aspects of servicing, repair, and maintenance, providing a complete resource for the vehicle.
Specialization:
Dedicated to the Alfa Romeo 155, offering specific and accurate information for this model.
Engine Mechanical:
Engine overhaul, disassembly, assembly, cylinder head, pistons, crankshaft, camshafts, timing systems (belt/chain), lubrication system, cooling system
Fuel System:
Fuel injection systems (Bosch Motronic variants), fuel pump, injectors, fuel pressure regulator, fuel filter replacement
Ignition System:
Ignition coils, spark plugs, ignition timing, distributor (if applicable), ECU diagnosis
Transmission Manual:
Clutch replacement, gearbox overhaul, gear shift mechanism, gearbox fluid changes
Transmission Automatic:
Automatic transmission service, fluid changes, shift control, torque converter (if applicable)
Drivetrain:
Front-wheel drive system, driveshafts, CV joints, differential maintenance
Suspension System:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, wheel alignment procedures
Steering System:
Power steering system, steering rack, tie rods, steering column, fluid maintenance
Brake System:
Brake pad and disc replacement, brake fluid bleeding and replacement, ABS system diagnosis, parking brake adjustment
Electrical System:
Battery, alternator, starter motor, lighting system, fuses, relays, wiring diagrams for all circuits
Bodywork And Chassis:
Body panel removal and installation, door mechanisms, window regulators, bumper repair, chassis lubrication
Heating Ventilation And Air Conditioning:
HVAC system components, refrigerant handling, blower motor, climate control operation
Interior Trim:
Dashboard removal, seat removal, carpet replacement, interior paneling
Maintenance Tasks:
Routine servicing, oil and filter changes, air filter replacement, spark plug replacement, coolant checks, brake fluid checks, tire rotation
Diagnostic Procedures:
Troubleshooting guides for common problems, fault code reading (OBD-I/OBD-II where applicable), symptom-based diagnosis
Repair Procedures:
Step-by-step instructions for all mechanical, electrical, and bodywork repairs
Component Replacement:
Detailed instructions for replacing major and minor components, including timing belts, water pumps, alternators, starters, fuel pumps, etc.
Adjustment Procedures:
Adjustment procedures for brakes, clutch, parking brake, throttle linkage, idle speed
Wiring Diagrams:
Comprehensive, detailed wiring diagrams for all electrical systems
Depth:
Full professional quality in-depth service and repair, covering routine maintenance to major overhauls and diagnostics.
Illustrations:
Clear, easy-to-follow step-by-step instructions with pictures and diagrams
Engine Family:
Alfa Romeo Twin Spark (various displacements like 1.7L, 1.8L, 2.0L)
Engine Family Variant:
Alfa Romeo V6 Busso (e.g., 2.5L, 3.0L, 3.2L - often in later or performance variants)
Horsepower Range:
Varies by engine: typically 129 hp (1.7 TS) to over 210 hp (3.0 V6 Q4)
Torque Range:
Varies by engine: typically around 164 Nm (1.7 TS) to over 285 Nm (3.0 V6)
Injection Type:
Electronic Fuel Injection (EFI), typically utilizing Bosch Motronic systems.
Type:
Distributorless Ignition System (DIS) for Twin Spark, or coil-on-plug for V6 variants. Specific details will be in the manual.
Method:
Timing belt driven for Twin Spark engines, timing chains for V6 Busso engines. Manual will detail replacement intervals and procedures.
Features:
Catalytic converters, lambda sensors (oxygen sensors), secondary air injection (depending on market and model year).
Type:
5-speed Manual Transmission
Type:
4-speed Automatic Transmission (less common, often with V6 models)
All Wheel Drive:
Available on certain performance models (e.g., 155 Q4) featuring a Viscous Coupling (VC) centre differential and Torsen limited-slip differentials.
Manual Transmission Fluid:
Refer to manual for specific GL-4 or GL-5 gear oil specifications and capacities (e.g., API GL-4 75W-90 is common).
Automatic Transmission Fluid:
Refer to manual for specific ATF type (e.g., Dexron III equivalent) and capacity.
Oil And Filter Change:
Typically every 10,000-15,000 km or 12 months, whichever comes first. Manual will specify exact intervals and oil grades.
Timing Belt Replacement:
Crucial for Twin Spark engines. Typically recommended every 60,000 km or 5 years. Manual will detail procedure and required components (e.g., tensioners, idlers).
Spark Plug Replacement:
For Twin Spark, due to twin spark plug design, specific replacement intervals will be detailed. For V6, generally every 40,000-60,000 km.
Engine Oil:
Refer to manual for specific API/ACEA specifications and viscosity grades (e.g., Selenia grades, 10W-40, 15W-50 depending on engine and climate).
Coolant:
Refer to manual for specific coolant type (e.g., Ethylene Glycol based) and mixture ratio (50/50 with distilled water). Alfa Romeo specific coolant may be recommended.
Brake Fluid:
Typically DOT 3 or DOT 4 brake fluid. Manual will confirm and specify replacement intervals.
Twin Spark Engine:
Wear on the 'better' spark plug thread in cylinder heads (due to twin plug design), timing belt component failure if not replaced on schedule, oil consumption.
Electronics:
Can be prone to minor electrical gremlins, sensor issues (e.g., crank/cam sensors), and aging wiring harnesses. Manual's wiring diagrams are essential here.
Suspension And Steering:
Wear in bushings (especially front wishbones), ball joints, and potential for steering rack leaks. Manual will guide diagnosis and replacement.
Rust:
As with many cars of this era, rust can affect wheel arches, sills, and rear spring mounting points. Manual will highlight areas for inspection.
Brand Identity:
Alfa Romeo is renowned for sporty handling, distinctive Italian styling, and a passionate driving experience, often featuring technologically advanced engines for their time.
Introduction:
The Alfa Romeo 155 was introduced in 1992 as a replacement for the Alfa Romeo 75, marking a significant shift towards a more modern, front-wheel-drive platform.
Key Variants:
Notable variants include the Twin Spark (TS) models with various engine sizes, the luxurious V6 versions, and the high-performance 'Q4' all-wheel-drive models, often featuring enhanced aerodynamics and suspension.
Manufacturing Location:
Primarily manufactured at Fiat Auto's plants in Italy.
Discontinuation:
Production concluded in 1998, succeeded by the Alfa Romeo 156.