Segment:
Premium Mid-size Convertible
Target Audience:
Enthusiasts and owners seeking detailed, professional repair and maintenance information.
Competitors:
BMW 3 Series Convertible, Mercedes-Benz CLK Convertible, Lexus IS Convertible (though not directly for this model year).
Information Source:
Factory-issued data, identical to what dealership technicians use.
Content Organization:
Comprehensive A-Z coverage, single PDF for easy navigation.
User Experience:
Printable pages, zoomable images, no physical wear and tear on original manuals.
Powertrain:
Engine, Fuel System, Cooling, Lubrication, Exhaust, Ignition, Starting, Charging, Automatic Transmission, Manual Transmission
Drivetrain:
Transfer Case, Propeller Shaft, Drive Shafts, Differential, Axles
Suspension Steering:
Suspension, Steering Column, Power Steering, Wheel Alignment
Brakes:
Brake Control, Brake System, Parking Brake
Body Chassis:
Chassis, Bodywork, Doors, Hood, Glass, Mirrors, Interior Trim, Exterior Trim
Electrical Electronics:
Electrical System, Multiplex/CAN Communication, Instrument Panel, Meter, Audio/Visual, Wiper/Washer, Door Locks, Cruise Control, Engine Immobilizer, Supplemental Restraint System (SRS), Air Conditioning
Maintenance:
Scheduled Maintenance, Fluid Checks and Changes, Filter Replacements, Inspections
Diagnostics:
Troubleshooting Guides, Fault Code Interpretation, Diagnostic Procedures
Repair Rebuild:
Step-by-step repair instructions for all major components, Engine Rebuild, Transmission Overhaul, Suspension Component Replacement, Brake Service, Electrical Component Repair
Specifications:
Torque Specifications, Fluid Capacities, Wear Limits, Clearances
Wiring:
Complete Wiring Schematics for all vehicle systems
Depth:
Factory-level technical detail, suitable for professional technicians and advanced DIY enthusiasts
Diagnostic Tools:
Implied coverage for dealer-level diagnostic tools (e.g., VAG-COM/ODIS)
Searchability:
Likely searchable text within PDF
Printability:
Yes, all pages printable
Image Scaling:
Images can be blown up and printed enlarged
Binding:
Digital (no physical binding)
Paper Description:
N/A (Digital format, printable on user's choice of paper)
Operating Systems:
Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac
Software Requirements:
Adobe PDF Reader, Winzip (free online)
Engine Code Examples:
BEX (1.8T), BFB (2.0), AVJ/AMB (1.8T), ALT (2.0)
Engine Variants:
Likely covers 1.8L Turbocharged (4-cylinder) and 2.0L (4-cylinder) naturally aspirated variants. 3.0L V6 (ASN) is also possible.
Horsepower Range:
Approx. 163 hp to 225 hp, depending on engine variant.
Torque Range:
Approx. 225 Nm to 320 Nm, depending on engine variant.
Injection Type:
Electronic Fuel Injection (EFI), likely multi-point or direct injection for turbo variants.
Fuel Type:
Unleaded gasoline
Cooling System:
Liquid-cooled, pressurized system with radiator and fan.
Oil Type Specification:
Likely API SM or SN, ACEA A3/B4 or C3. Specific viscosity grade (e.g., 0W-30, 5W-40) will be detailed.
Standard Transmission:
Likely 6-speed Manual Transmission (e.g., GGU, FNF).
Optional Transmission:
Likely 5-speed Tiptronic Automatic Transmission (e.g., 5HP19FLA).
Drive Type:
Front-Wheel Drive (FWD) or quattro All-Wheel Drive (AWD).
Automatic Transmission Fluid:
Specific ATF (e.g., G 052 162 A2 or equivalent) will be detailed.
Manual Transmission Fluid:
Specific gear oil (e.g., G 052 171 A2 or equivalent) will be detailed.
Length:
Approx. 4574 mm (179.9 in)
Width:
Approx. 1765 mm (69.5 in)
Height:
Approx. 1391 mm (54.8 in)
Wheelbase:
Approx. 2578 mm (101.5 in)
Curb Weight:
Approx. 1700-1850 kg (3748-4079 lbs), varies with engine and drivetrain.
Gross Vehicle Weight Rating:
Will be specified in the manual, typically around 2200-2350 kg.
Trunk Volume:
Approx. 315 liters (11.1 cu ft) with the roof up.
NHTSA Front Crash Rating:
Likely 4-star (Specific rating for 2004 A4 Cabriolet should be checked, but consistent with Audi's safety record).
IIHS Top Safety Pick:
Not typically awarded to convertibles in this era. Specific tests for side impact and rollover resistance would be relevant.
ABS:
Standard Anti-lock Braking System
Esp:
Standard Electronic Stability Program (ESP)
Traction Control:
Standard Traction Control System (ASR)
Airbags:
Frontal airbags, Side airbags integrated into seats, Rollover protection system (deployable hoops).
Seatbelts:
Pretensioning seatbelts with force limiters, front and rear.
Rollover Protection:
Active rollover protection system deployable from behind rear seats.
Audio System:
Factory Audi Symphony or Concert CD/Radio systems, with optional navigation (RNS-E) for later models.
Display:
Central information display in the instrument cluster, potentially a color screen on higher trims or with navigation.
Cruise Control:
Standard cruise control functionality.
Bluetooth:
Optional factory Bluetooth preparation (may require aftermarket adapter for full functionality).
Parking Sensors:
Optional rear parking sensors (Audi Parking System).
Oil Change Interval:
Typically every 10,000-15,000 miles or 12-24 months, depending on driving conditions and oil specification used (variable service interval indicator).
Timing Belt Chain:
Most engines in this generation used timing chains, requiring less frequent replacement than belts. Specific checks for tensioners and guides will be in the manual.
Brake Fluid Flush:
Recommended every 2 years.
Coolant Flush:
Typically every 30,000-60,000 miles or 2-4 years.
Engine Oil Capacity:
Varies by engine, typically 4.0-5.0 liters.
Coolant Type:
G12 or G12+ coolant concentrate (pink/red).
Power Steering Fluid:
Pentosin CHF 11S or equivalent specified by Audi.
Engine Oil Consumption:
Some early 1.8T engines could exhibit higher oil consumption; turbocharger wastegate issues were also reported.
Ignition Coils:
Coil-on-plug ignition coils could fail, leading to misfires.
Convertible Top Mechanism:
Hydraulic leaks or pump issues for the convertible top mechanism can occur with age.
Pcv System:
Clogged Positive Crankcase Ventilation (PCV) valves or hoses can lead to oil leaks or rough running.
Suspension Components:
Wear in control arm bushings and ball joints is common due to mileage and road conditions.
Brand:
Audi, known for its quattro all-wheel-drive system, sophisticated engineering, and premium interiors.
Generation:
Second generation (B6) platform, with the convertible variant (8H) introduced later in the lifecycle.
Cabriolet Debut:
The 8H Cabriolet replaced the earlier 8G model and was based on the B6 sedan/ Avant platform.
Production Years:
The 8H generation was produced from approximately 2002 to 2009.
Manufacturing Location:
Ingolstadt, Germany.
