Competitors:
BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Volvo S80, Jaguar S-Type
Design:
Distinctive Italian styling, comfortable interior, refined driving experience.
Powertrain Options:
Available with powerful V6 and V6 engines, known for their smooth performance.
Primary:
Car service centers, professional mechanics, and enthusiastic DIY owners.
Applicable Years:
1999, 2000, 2001, 2002, 2003
Estimated Pages:
Thousands (printable at high quality)
Type:
Factory Service Repair Manual (ELEARN)
Language:
English (assumed, based on product description context)
Powertrain:
Engine mechanical, fuel system, ignition system, cooling system, exhaust system, lubrication system
Drivetrain:
Transmission (manual and automatic), clutch, driveshafts, differential
Chassis:
Brakes (hydraulic, ABS), steering system, suspension (front and rear), wheels and tires
Electrical:
Body electrical systems, lighting, instruments, audio system, climate control, power accessories, engine control unit (ECU), airbags
Bodywork:
Body panels, interior trim, doors, windows, seats, structural components
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication, tire rotation
Repair:
Component removal and installation, engine overhaul, transmission repair, brake caliper overhaul, suspension arm replacement
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs), wiring diagrams, electrical schematics
Technical Data:
Specifications, torque values, clearances, test procedures, electrical data
Depth:
Comprehensive factory-level detail suitable for professional technicians and experienced DIY enthusiasts.
Engine Options:
3.0L V6 Busso (164.05 engine code), 2.0L V6 Turbo (164.15 engine code), 2.0L Twin Spark (164.00 engine code)
3.0L V6 Horsepower:
Approx. 220 HP
3.0L V6 Torque:
Approx. 265 Nm (195 lb-ft)
Injection Type:
Bosch Motronic (specific version varies by engine)
Common Codes:
164.05 (3.0 V6), 164.15 (2.0 V6 Turbo), 164.00 (2.0 TS)
Euro Ncap Early:
The 166's safety performance was evaluated in an era where Euro NCAP standards were evolving. Specific ratings may not be directly comparable to modern standards.
ABS:
Standard Anti-lock Braking System
Esd:
Optional Electronic Stability Program (ESP) available on some models.
Airbags:
Front airbags, side airbags, and curtain airbags (depending on trim level and year).
Seatbelts:
Pre-tensioned seatbelts with force limiters.
Audio System:
Factory fitted CD player and radio, often with steering wheel controls. Bose sound system optional on higher trims.
Cruise Control:
Standard on most models.
Nav System:
Optional satellite navigation system available on some models.
Seats:
Electric front seats with memory function, heated seats available.
Oil Change Interval:
Typically 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first. Consult manual for exact recommendation.
Timing Belt Replacement:
Crucial for V6 engines. Usually every 100,000-120,000 km (60,000-75,000 miles) or 5 years. Failure is catastrophic.
Engine Oil:
Refer to manual for specific viscosity (e.g., Selenia 20K or 10W-40, 10W-30 depending on engine and climate).
Coolant:
Paraflu UP (ethylene glycol based, OAT type) or equivalent.
Electrical:
Can suffer from aging wiring harnesses, sensor failures (e.g., ABS sensors, crankshaft sensors), and dashboard warning light issues.
Engine:
Timing belt is a critical maintenance item for V6. Twin Spark engines can experience ignition coil and spark plug wear. Water pump and thermostat issues are not uncommon.
Suspension:
Worn control arm bushings and ball joints can lead to poor handling and premature tire wear.
Climate Control:
HVAC system can develop leaks or actuator failures.
Design Awards:
While specific awards for the 166 are less publicized than its predecessor, its styling was widely praised as a return to form for Alfa Romeo design.
Reliability Perception:
Perceived as a luxury executive car, reliability can be a concern if maintenance is neglected, particularly for aging electrical components and the critical timing belt.
