Vehicle Segment:
        
        
            Executive Sedan (E-segment)
        
     
    
        
            Brand Perception:
        
        
            Known for distinctive Italian styling, sporty driving dynamics, and the iconic Busso V6 engine.
        
     
    
    
        
            Key Competitors:
        
        
            BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Jaguar S-Type
        
     
    
    
        
            Manual Advantage:
        
        
            Professional workshop level information, detailed diagrams, and step-by-step procedures for efficient repair and maintenance.
        
     
    
        
            Digital Format Benefit:
        
        
            Instant access, portability (smartphones), and protection from grease/dirt compared to paper manuals.
        
     
 
    
    
    
        
            Vehicle Coverage:
        
        
            Alfa Romeo 166 2.5 V6 Busso models
        
     
    
        
            Market Coverage:
        
        
            Global (assumed based on professional workshop manual content)
        
     
    
    
        
            Estimated Page Count:
        
        
            N/A (Digital format, content depth is key)
        
     
    
    
        
            Type:
        
        
            Full Service and Repair Manual
        
     
    
    
    
    
        
            Delivery Method:
        
        
            Instant Download
        
     
    
        
            File Format:
        
        
            Disc Image File (.ISO) / Application (.exe)
        
     
    
        
            Software Requirement:
        
        
            Disc mounting software (e.g., DAEMON Tools, MagicISO)
        
     
 
    
    
    
        
            Powertrain:
        
        
            Engine (2.5 V6 Busso), Fuel System, Ignition System, Exhaust System
        
     
    
        
            Drivetrain:
        
        
            Transmission (Manual & Automatic variants), Clutch, Driveshafts, Differential
        
     
    
        
            Chassis:
        
        
            Suspension (Front & Rear), Steering System, Brake System, ABS
        
     
    
        
            Electrical:
        
        
            Engine Management, Lighting, Instruments, Body Electrics, Audio System, Security System
        
     
    
        
            Bodywork:
        
        
            Body Panels, Interior Trim, Doors, Windows, Convertible Top (if applicable)
        
     
    
    
        
            Maintenance:
        
        
            Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic Procedures, Fault Code Interpretation, Symptom-Based Diagnosis
        
     
    
        
            Repair:
        
        
            Component Replacement, Overhauls, Reassembly Procedures
        
     
    
        
            Diagnostics:
        
        
            ECU Diagnostics, Sensor Testing, Actuator Testing
        
     
    
    
        
            Depth:
        
        
            Comprehensive; covers basic maintenance to full rebuilds and complex diagnostics
        
     
    
        
            Instructions:
        
        
            Step-by-step instructions with detailed exploded views and diagrams
        
     
    
        
            Illustrations:
        
        
            High-quality diagrams and detailed illustrations
        
     
    
        
            Target Audience:
        
        
            Professional mechanics and DIY enthusiasts
        
     
 
    
    
    
        
            Engine Type:
        
        
            V6, naturally aspirated
        
     
    
        
            Engine Name:
        
        
            Alfa Romeo V6 'Busso'
        
     
    
        
            Displacement:
        
        
            2492 cc (2.5 Liters)
        
     
    
        
            Bore X Stroke:
        
        
            93 mm x 60.9 mm (Typical for 2.5 Busso)
        
     
    
        
            Compression Ratio:
        
        
            10.3:1 (Typical for 2.5 Busso)
        
     
    
        
            Valvetrain:
        
        
            DOHC, 4 valves per cylinder (24 valves total)
        
     
    
    
        
            Horsepower:
        
        
            190 PS (187 bhp / 140 kW) @ 6300 rpm (Typical for 2.5 Busso)
        
     
    
        
            Torque:
        
        
            220 Nm (162 lb-ft) @ 5000 rpm (Typical for 2.5 Busso)
        
     
    
    
        
            Fuel Delivery:
        
        
            Electronic Fuel Injection (MPI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline (RON 95 recommended)
        
     
    
    
        
            ECU Type:
        
        
            Bosch Motronic (specific variant depends on year/market)
        
     
    
        
            Emissions Standard:
        
        
            Euro 3 (for later models)
        
     
 
    
    
    
        
            Transmission Type:
        
        
            5-speed Manual (Getrag 260 variants likely)
        
     
    
    
        
            Transmission Type:
        
        
            4-speed Automatic (ZF 4HP20 likely)
        
     
    
    
        
            Clutch Type:
        
        
            Hydraulic, single dry plate (Manual)
        
     
    
        
            Gear Ratios:
        
        
            Detailed ratios available within the manual
        
     
    
    
        
            Manual Transmission Fluid:
        
        
            API GL-4, SAE 75W-90 (Check specific Alfa Romeo spec, e.g., Tutela or equivalent)
        
     
    
        
            Automatic Transmission Fluid:
        
        
            ZF TE-ML 11B or equivalent ATF (e.g., Dexron III) (Check specific Alfa Romeo spec)
        
     
 
    
    
    
        
            Crash Test Ratings:
        
        
            Limited official Euro NCAP data for early models, later models improved. Consult specific year reports if available.
        
     
    
    
    
        
            Traction Control:
        
        
            ASR (Anti-Slip Regulation) available on some models
        
     
    
        
            Brake System:
        
        
            Ventilated discs front, solid discs rear (typical)
        
     
    
    
        
            Airbags:
        
        
            Driver and front passenger airbags standard; side airbags available on later models.
        
     
    
        
            Seatbelts:
        
        
            Pre-tensioning seatbelts with load limiters
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 10,000-15,000 km or 12 months (refer to manual for specific conditions)
        
     
    
        
            Timing Belt Replacement:
        
        
            Crucial for V6 Busso. Typically every 70,000-100,000 km or 5 years. **This manual will provide the exact interval and procedure.**
        
     
    
        
            Spark Plug Replacement:
        
        
            Typically every 40,000-60,000 km (depending on plug type)
        
     
    
    
        
            Engine Oil Type:
        
        
            API SJ or higher, ACEA A3/B3, SAE 10W-40 or 10W-30 (Specific Alfa Romeo approval, e.g., Selenia or equivalent recommended)
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol based antifreeze with corrosion inhibitors. Pink or Red coolant (e.g., Paraflu UP)
        
     
    
    
    
        
            Engine Component:
        
        
            Timing belt tensioner and idler pulley wear; oil leaks from cam covers and crank seals; intake manifold runner issues (on some variants).
        
     
    
        
            Electrical Component:
        
        
            Minor electrical gremlins are not uncommon in Italian cars of this era; check connections and ground points.
        
     
    
        
            Suspension Component:
        
        
            Wear in bushings and ball joints, especially on front suspension.
        
     
    
        
            Rust:
        
        
            Potential for rust in wheel arches, sills, and around the rear subframe mounting points.
        
     
 
    
    
    
        
            Brand Legacy:
        
        
            Alfa Romeo is renowned for its passion, sporty heritage, and elegant Italian design, dating back to 1910.
        
     
    
    
        
            Predecessor:
        
        
            Alfa Romeo 164
        
     
    
        
            Design Influence:
        
        
            Designed by Pininfarina, sharing platform elements with Fiat Chroma and Lancia Thema, but with distinct Alfa Romeo character.
        
     
    
    
        
            Manufacturing Location:
        
        
            Pomigliano d'Arco, Italy
        
     
    
        
            Production Numbers:
        
        
            Estimated around 73,000 units produced between 1998 and 2007.