Historical Context:
The Alfa Romeo 75 (Milano in North America) was the successor to the Alfa Romeo Alfetta and Alfa Romeo Giulietta. It represented a blend of sporty performance, Italian design flair, and unique engineering features. Positioned as a compact executive car with a strong sporting pedigree.
Competitors:
Competed against cars like the BMW 3 Series, Mercedes-Benz 190E, Audi 80/90, and other sporty sedans of its era.
Design Philosophy:
Distinctive wedge shape, rear-mounted transaxle for optimal weight distribution and handling, rear-wheel drive, independent suspension all around, and the characteristic Alfa Romeo Busso V6 engine.
Manual Value Proposition:
Provides professional-grade repair and maintenance information essential for owners and mechanics to keep this classic Alfa Romeo in optimal condition. Instant download allows for immediate access to critical repair data.
Systems Covered:
Maintenance & Servicing, Engine & Clutch, Transmissions, Cooling Systems, Fuel & Exhaust, Ignition & Electrical, Brakes & Brake Assembly, Wheels & Tires, Steering & Suspension, Frame & Bodywork, Wiring Diagrams, Fault Finding Troubleshooting
Estimated Page Count:
Comprehensive (specific count not provided in product info, typical for such manuals is 500-1500+ pages)
Type:
Service Repair Workshop Manual
Language:
English (assumed, based on typical product descriptions)
Engine Mechanical:
Detailed inspection, overhaul, timing belt, seals, gaskets, pistons, rings, crankshaft, camshafts, cylinder heads, valves.
Engine Management:
Fuel injection systems (Bosch L-Jetronic for 2.5, Motronic for 3.0), ignition systems, sensors, ECUs, emission control.
Clutch:
Clutch assembly, hydraulic system, clutch master and slave cylinders, flywheel.
Transmission:
Transaxle (rear-mounted gearbox and differential), manual gearbox overhaul, gear selection, driveshafts, universal joints, fluid specifications.
Cooling System:
Radiator, water pump, thermostat, coolant hoses, expansion tank, fan operation, flushing and filling procedures.
Fuel System:
Fuel tank, fuel pump, fuel lines, fuel filter, injectors, fuel pressure regulator, fuel delivery.
Exhaust System:
Exhaust manifold, catalytic converter, mufflers, exhaust pipes, hanger and mount inspection.
Ignition System:
Spark plugs, ignition coils, distributor (early models), electronic ignition module, timing adjustment.
Electrical System:
Battery, alternator, starter motor, lighting systems, dashboard instruments, power windows, central locking, fuse box.
Brakes:
Front and rear brake systems, brake discs, brake pads, calipers, brake lines, master cylinder, brake booster, parking brake, ABS (if equipped).
Wheels Tires:
Wheel and tire specifications, balancing, rotation, alignment procedures.
Steering Suspension:
Power steering system, steering rack, tie rods, ball joints, control arms, shock absorbers, springs, anti-roll bars, bushing replacement.
Frame Bodywork:
Chassis structure, body panel repair, door mechanisms, window regulators, body trim, rust prevention, jacking points.
Wiring Diagrams:
Complete electrical wiring schematics for all vehicle systems.
Fault Finding:
Diagnostic procedures, troubleshooting guides for common and uncommon issues, symptom-based diagnosis.
Maintenance Schedule:
Recommended service intervals for oil changes, fluid checks, filter replacements, timing belt service (critical for V6 engines).
Repair Procedures:
Step-by-step instructions for all major repair operations, from minor adjustments to complete engine and transmission rebuilds.
Troubleshooting:
Systematic approaches to diagnosing and resolving issues across all vehicle systems.
Diagnostics:
Guidance on using diagnostic tools and techniques specific to the Alfa Romeo 75's electronic and mechanical systems.
Depth:
Professional quality, covering everything from routine maintenance to complete engine and transmission overhauls, comparable to factory service manuals.
Engine Type:
V6 SOHC (2.5) / V6 DOHC (3.0)
Displacement 2.5:
2492 cc (152.1 cu in)
Displacement 3.0:
2959 cc (180.6 cu in)
Horsepower 2.5:
Approximately 155-180 hp (depending on market and version)
Torque 2.5:
Approximately 220-230 Nm (162-170 lb-ft)
Horsepower 3.0:
Approximately 187-196 hp
Torque 3.0:
Approximately 245-255 Nm (181-188 lb-ft)
Fuel Delivery 2.5:
Bosch L-Jetronic fuel injection
Fuel Delivery 3.0:
Bosch Motronic fuel injection
Layout:
Front-engine, rear-wheel drive
Engine Code Busso:
The legendary 'Busso' V6 engine, known for its distinctive sound and performance characteristics.
Crash Test Results:
No specific modern crash test ratings readily available for this era of vehicle. Safety was less standardized than today.
Braking System:
Four-wheel disc brakes standard on most models, ABS available on later or higher-trim versions.
Handling:
Rear-wheel drive, transaxle layout contributing to balanced weight distribution and agile handling.
Seatbelts:
Three-point seatbelts, potentially inertia-reel types.
Body Structure:
Rigid body structure with crumple zones, designed to absorb impact energy. However, compared to modern standards, safety features are more basic.
Engine Oil Change:
Typically every 5,000-7,500 miles or 6-12 months. Refer to manual for exact specification and oil type.
Timing Belt Replacement:
Critical for the V6 engine. Typically every 30,000-60,000 miles or 3-5 years, depending on conditions. Failure can lead to catastrophic engine damage.
Engine Oil:
API SG/SH or higher, SAE 10W-40 or 15W-50 recommended (check manual for specific viscosity based on climate and usage).
Coolant:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Check manual for specific type (e.g., silicate-free).
Brake Fluid:
DOT 3 or DOT 4 (check manual for specific requirement, typically replaced every 2 years due to hygroscopic nature).
Rust Prone Areas:
Wheel arches, sills, door bottoms, rear suspension mounting points. Thorough inspection and prevention are key.
Electrical Gremlins:
Common in older Italian cars; corrosion in connectors, aging wiring harnesses, and failing relays can cause intermittent issues. The manual's wiring diagrams and troubleshooting section are invaluable.
Engine Cooling System:
Thermostat issues, leaks from hoses and water pump are not uncommon. Regular coolant flushes are essential.
Transaxle Clunk:
Some owners report a 'clunk' on gear changes, often related to worn U-joints in the driveshaft or worn bushings in the linkage or suspension. The manual will detail inspection and replacement.
Rubber Components:
Age-related degradation of rubber hoses, mounts, and bushings can affect various systems.