Engine Code Lfw:
3.0L 6-CYLINDER, V60, SIDI, DOHC WITH VVT
Engine Code Lwr:
3.6L 6-CYLINDER, V60, DOHC WITH VVT, LP GAS
Engine Code Lfx:
3.6L 6-CYLINDER, V60, SIDI, DOHC WITH VVT
Engine Code L77:
6.0L 8-CYLINDER, V90, GEN-IV, PETROL ASPIRATED
Engine Code Lsa:
6.2L 8-CYLINDER, V90, SUPERCHARGED, INTERCOOLED
Engine Code Ls3:
6.2L 8-CYLINDER, V90, PETROL ASPIRATED
Transmission Code 6L45:
6-SPEED AUTOMATIC TRANSMISSION (MYA)
Transmission Code 6L50:
6-SPEED AUTOMATIC TRANSMISSION (MYB)
Transmission Code 6L80:
6-SPEED AUTOMATIC TRANSMISSION (MYC)
Transmission Code 6L90:
6-SPEED AUTOMATIC TRANSMISSION (MYD)
Transmission Code Ay6:
6-SPEED MANUAL TRANSMISSION AISIN (MV5)
Transmission Code Tr6060:
6-SPEED MANUAL TRANSMISSION TREMEC (MG9)
Vehicle Segment:
Full-size luxury sedan, typically marketed as a premium offering with a focus on comfort, space, and performance, often sharing its platform with the Holden Commodore but with extended wheelbase and luxury appointments.
Key Competitors:
Ford Falcon (G6E, G6E Turbo), BMW 5 Series, Mercedes-Benz E-Class, Audi A6 (during its era of market presence).
Defining Characteristics:
Spacious interior, powerful engine options (including V8 and supercharged V8), rear-wheel-drive platform (historically), premium comfort features, advanced technology for its time, and a strong emphasis on Australian-designed and manufactured heritage.
Powertrain:
Engine Mechanical (3.0L LFW, 3.6L LWR LP Gas, 3.6L LFX, 6.0L L77, 6.2L LSA, 6.2L LS3), Engine Controls, Fuel System & Control, Intake Air System & Manifold, Exhaust Manifold System, Supercharger System (LSA), Engine Cooling System, Engine Heating System, Engine Mount System, Transmission Systems (Automatic 6L45, 6L50, 6L80, 6L90 and Manual AY6, TR6060), Transmission Cooling System, Clutch & Hydraulic Clutch System.
Chassis:
Service Brake System, Anti-Lock Brake System (ABS), Hydraulic Brake System, Disc Brake System, Parking Brake System, Steering System, Power Steering System, Steering Wheel & Column, Front & Rear Suspension System, Electronic Suspension Control, Tire and Wheel System, Wheel Alignment System, Propeller Shaft System, Rear Drive Axle System, Wheel Drive Shaft System.
Electrical:
Vehicle Diagnostic Information, Programming and Set-up System, Engine Starting System, Engine Charging System, Cruise Control System, Electronic Ignition System, Evaporative Emission Control, Throttle Actuator Control System, Fuel Injection & Fuel Rail System, Cellular & Entertainment System, Navigation System, Displays & Gauges System, Secondary & Configurable Customer Control, Theft Deterrent System, Immobilizer System, Object Detection System, Pedestrian Protection System, Remote Function System, Power Outlets & Power Management, Data Communications System.
Body:
General Information, Introduction, Specifications, Tightening Torque, Special Tools & Equipment, Diagnostic Information & Code, Maintenance & Lubrication, Repair Instructions, Body System & Hardware, Exterior Trim System, Floor Covering & Headlinings, Instrument Panel, Console Trim System, Interior Trim & Paneling, Bolted Exterior Body Panels, Bumper and Fascias, Collision Repair System, Frame & Underbody System, Paint & Coatings System, Plastic Panel System, Fixed & Moveable Windows, Horn & Mirror System, Lighting System, Vehicle Access System, Wipers and Washers, Vehicle Sunroof System, Seat and Seat Belt System, Supplemental Inflatable Restraints (Airbags).
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements, lubrication points, tire rotation, brake inspection.
Repair:
Detailed step-by-step repair procedures for all major systems, including engine component replacement (pistons, crankshaft, cylinder heads), transmission overhaul, brake caliper and rotor replacement, suspension arm and shock absorber replacement, body panel repair and replacement, interior trim removal and installation, electrical component diagnostics and replacement.
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs) and their meanings, symptom-based diagnostics, electrical circuit diagrams, connector pinouts, testing procedures for sensors and actuators.
Technical Specifications:
Detailed specifications for all components, including tightening torques, fluid capacities, fluid types, electrical specifications, engine performance data, dimensions, weights, and clearances.
Depth Of Coverage:
Extremely high. This is a professional-level workshop manual designed for dealership technicians. It covers everything from routine maintenance to complete engine and transmission rebuilds, complex electrical diagnostics, and collision repair procedures.
Base Engine:
3.0L V6 SIDI DOHC VVT (LFW) - Naturally Aspirated Petrol. This engine offered a balance of performance and fuel efficiency.
V8 Performance Ls3:
6.2L LS3 V8 - Naturally Aspirated. Known for its robust power delivery and classic V8 soundtrack. (Specific HP/Torque figures vary by year and tune, but typically in the 400+ HP range).
Supercharged Performance Lsa:
6.2L LSA V8 - Supercharged, Intercooled. This was the top-tier performance engine, offering significant horsepower and torque for exhilarating acceleration, often exceeding 500 HP.
Fuel Delivery:
Sequential Multi-Port Fuel Injection (SIDI for V6) and Port Fuel Injection for V8s. The LWR variant is specifically designed for Liquefied Petroleum Gas (LPG) with a dual-fuel system.
Vvt Technology:
Variable Valve Timing (VVT) is present on all listed V6 and V8 engines, optimizing power and efficiency across the rev range.
Manual Transmission Offering:
Available with 6-speed manual transmissions, including the Aisin AY6 (MV5) and Tremec TR6060 (MG9), catering to driving enthusiasts.
Automatic Transmission Offering:
A range of robust 6-speed automatic transmissions: 6L45 (MYA), 6L50 (MYB), 6L80 (MYC), and 6L90 (MYD), offering smooth shifts and efficient power delivery, with higher-numbered models typically paired with more powerful engines.
Transmission Control:
Features like 'Active Select' or manual override modes are common on the automatic transmissions, allowing for driver-controlled gear changes.
Ancap Rating:
Holden Caprice models typically achieved high safety ratings from ANCAP (Australasian New Car Assessment Program) due to their robust construction and advanced safety features for the era. Expect 4 or 5-star ratings for the WN series.
Active Safety Systems:
ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), ESC (Electronic Stability Control), Traction Control System (TCS), often incorporating features like Forward Collision Alert, Lane Departure Warning, and Blind Spot Alert on higher trims.
Passive Safety Features:
Multiple airbags (front, side, curtain, and sometimes knee airbags), height-adjustable seatbelts with pretensioners, active headrests, and a reinforced safety cell.
Infotainment System:
Features Holden's 'MyLink' infotainment system with touch-screen interface, Bluetooth connectivity, USB input, and optional satellite navigation. Higher trims may include premium audio systems (e.g., Bose).
Driver Assistance Features:
Availability of advanced driver-assistance systems (ADAS) such as Forward Collision Alert, Lane Departure Warning, Blind Spot Monitoring, and Rear Park Assist with a reversing camera.
Connectivity Options:
Bluetooth for hands-free calling and audio streaming, USB ports for device charging and media playback, voice recognition for controlling infotainment and navigation functions.
Oil Change Interval:
Typically 12 months or 15,000 km (9,320 miles), whichever comes first. Always consult the specific vehicle's owner's manual or this workshop manual for the most accurate intervals.
Transmission Fluid Interval:
Automatic transmission fluid changes are often recommended around 100,000 km (62,000 miles) or based on driving conditions. Manual transmissions may have different intervals for inspection or fluid replacement.
Engine Oil Specification:
For petrol engines: SAE 5W-30 or 0W-40 meeting GM dexos1™ or API SN specifications. For LPG (LWR): Specific engine oil suitable for LPG-fueled engines. Always verify with the manual.
Coolant Specification:
GM-specific coolant (e.g., Dex-Cool), typically a long-life orange ethylene glycol-based coolant. Part Number examples: GM12345727 or equivalent.
Transmission Fluid Automatic:
Dexron VI (or compatible equivalent) for 6-speed automatics (6L45, 6L50, 6L80, 6L90). Part Number examples: GM19256445 or equivalent.
Transmission Fluid Manual:
Specific manual transmission fluid required, likely a GL-4 or GL-5 gear oil. Refer to the manual for exact viscosity and specification.
Common Wear Items:
Suspension components (bushings, ball joints, struts), ignition coils and spark plugs (especially on V8s), water pumps, and sometimes transmission solenoids or mechatronic units in automatic transmissions can be wear items.
Lpg Specific Issues:
For the LWR LPG engine, issues related to the LPG system itself, such as vaporiser leaks, injector problems, or fuel switching malfunctions, can occur.
