Production Years Covered:
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Target Audience:
Professional automotive technicians and Alfa Romeo 166 owners seeking detailed repair and maintenance information.
Manual Advantage:
Official, complete factory information trusted by professionals, offering detailed diagrams and step-by-step procedures.
Navigation Aids:
Numbered table of contents for quick information retrieval, bold figure numbers to match illustrations with instructions.
Visual Guidance:
Detailed illustrations, drawings, photos, and enlarged inset views for clarity during repair procedures.
Safety Information:
Notes, cautions, and warnings integrated throughout chapters to highlight critical information.
Electrical Troubleshooting:
Combined troubleshooting, electrical service procedures, and detailed wiring diagrams.
Primary Coverage:
Complete official full service repair manual
Estimated Page Count:
Detailed within the manual content, typical for comprehensive factory manuals (exact number not specified in product info)
Manual Type:
Factory Service Repair Manual
File Format:
ISO (requires mounting software like DAEMON Tools or MagicISO)
Mechanical Systems:
Engine, Suspension, Driveline, Brake Systems, Transmission/Transaxle, Clutch, Exhaust, Fuel System, Steering, Shocks
Electrical Systems:
Climate Control, Instrumentation & Warnings Systems, Battery & Charging Systems, Audio System, Lighting, Electrical Distribution, Wiring Diagrams
Body Frame:
Body, Frame & Mounting
Repair Procedures:
Step-by-step repair instructions, detailed substeps, diagnostic troubleshooting, electrical service procedures
Depth Of Information:
Comprehensive, professional-grade, suitable for technicians and experienced DIYers
File Format Details:
ISO image file, typically requiring specific software to access contents.
Printability:
Printable without restriction, allowing users to print individual pages or the entire manual.
Binding Type:
Digital Download (as a file, not a physical book)
Paper Type:
N/A (Digital format)
Engine Type:
3.0 Liter V6 (Busso V6 engine family)
Horsepower Estimate:
Approx. 220-240 PS (162-177 kW) depending on specific version and market (exact figures may vary)
Torque Estimate:
Approx. 270-290 Nm (199-214 lb-ft) depending on specific version and market (exact figures may vary)
Fuel Delivery:
Multi-point Fuel Injection (MPI), likely Bosch Motronic or similar ECU control.
Displacement:
2959 cc (2.96 Liters)
Crash Test Information:
Specific official crash test ratings for this generation and engine variant are not readily available from product description. Euro NCAP and other regional tests may apply.
Braking System:
Anti-lock Braking System (ABS) is standard. Electronic Brake-force Distribution (EBD) may be present. Likely ventilated front discs and solid or ventilated rear discs.
Airbags:
Front airbags for driver and passenger, side airbags likely standard or optional.
Infotainment System:
Likely featured an integrated radio/cassette or CD player with an optional premium sound system (e.g., Bose). Climate control is integrated into the dashboard.
Cruise Control:
Cruise control was a common option on executive models of this era.
Parking Assistance:
Rear parking sensors were sometimes available as an option.
Connectivity Features:
Limited by modern standards. May have had a basic hands-free phone preparation kit in higher trims.
Oil Change Interval:
Typically 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first. Consult manual for precise intervals based on driving conditions.
Timing Belt Interval:
Crucial for V6 engines. Typically 60,000-100,000 km (37,000-62,000 miles) or 5 years. Critical to follow manufacturer's recommendation to avoid catastrophic engine damage.
Engine Oil Specification:
Likely SAE 10W-40 or 5W-40 synthetic oil, meeting API SJ/SL or ACEA A3/B3/B4 specifications. Refer to manual for exact grade and API/ACEA ratings.
Coolant Specification:
Ethylene glycol based antifreeze, typically with OAT (Organic Acid Technology) or HOAT (Hybrid OAT) formulation. Dilution of 50% coolant and 50% distilled water is standard. Check manual for specific OEM approved types.
Brake Fluid Specification:
DOT 4 is the most common specification for vehicles of this era. Consult manual for confirmation.
Transmission Fluid Specification Manual:
GL-4 or GL-5 gear oil, viscosity dependent on temperature. Specific grade to be confirmed in manual.
Transmission Fluid Specification Automatic:
Specific ATF (Automatic Transmission Fluid) type required by the Q-System transmission. Likely a proprietary or widely compatible ATF. Refer to manual for exact specification (e.g., Dexron III or similar).
Common Wear Items:
Suspension bushings, ball joints, exhaust system components (especially catalytic converters and mufflers), power steering hoses, and electric window regulators are common wear items.
Engine Specific Concerns:
The Busso V6 is known for its durability but can be prone to oil leaks (e.g., valve cover gaskets, oil cooler seals), coolant leaks (especially the 'de-phaser' unit on later models), and timing belt tensioner issues if not maintained properly. Camshaft variator (VVT) can sometimes be noisy.
Electrical Issues:
Can experience issues with ABS sensors, climate control modules, dashboard warning lights, and door lock actuators. Wiring harness integrity can degrade over time.
Brand Focus:
Alfa Romeo is renowned for its sporting heritage, stylish Italian design, and engaging driving dynamics.
166 Lineage:
The Alfa Romeo 166 succeeded the Alfa Romeo 164 and represented the brand's flagship executive sedan offering. It was characterized by its distinctive styling and potent V6 engines.
Production Period:
1998-2007 (with some variations in market availability into 2008).
Manufacturer:
Alfa Romeo (part of Fiat Auto at the time)
