Segment:
Premium compact executive sedan / Avant wagon
Target audience:
Technicians, mechanics, and DIY enthusiasts
Manual audience:
Professional-grade reference for the premium Audi A4 platform
Class rivals:
BMW 3 Series, Mercedes-Benz C-Class, Lexus IS
Key advantage:
Quattro all-wheel-drive availability and refined turbocharged engines
Manual advantage:
Factory-level repair procedures and complete wiring diagrams at a fraction of dealer manual cost
Platform:
Audi B8 platform, introduced for the 2009 model year
Signature system:
quattro permanent all-wheel drive and available MMI driver interface
Chassis technology:
Aluminum-intensive front suspension with dynamic ride characteristics
General information:
Safety warnings, vehicle identification, and maintenance schedules
Engine and drivetrain:
Complete engine overhaul, transmission, and drivetrain service
Electrical and diagnostics:
Electrical system testing, troubleshooting flowcharts, wiring diagrams
Chassis systems:
Brakes, suspension, steering, cooling, heating, and fuel systems
Type:
Factory-level service, repair, and workshop manual
Content depth:
Complete coverage — every detail, from diagnostics to full teardown
Extras:
Special service tool numbers, tightening torque specifications, exploded-view diagrams
File format:
Searchable PDF (zoomable, printable, bookmarked chapters)
Delivery method:
Instant digital download — no shipping, no waiting
Device compatibility:
Windows PC, Mac, tablets, and smartphones
Access:
Download again anytime after purchase
Engine:
Complete overhaul — disassembly, inspection, and rebuild procedures
Transmission and drivetrain:
Transmission service and drivetrain repair procedures
Brakes:
Brake system inspection, service, and repair
Suspension and steering:
Component service and alignment-related information
Cooling and heating:
Cooling and HVAC system diagnosis and repair
Fuel system:
Fuel system maintenance and repair
Electrical:
Full electrical system diagnostics and repair with wiring diagrams
Diagnostics:
Symptom-based troubleshooting with diagnostic flowcharts and diagnostic trees
Electrical testing:
Electrical system testing with multimeter procedures
Component verification:
Component function verification procedures
Assembly work:
Step-by-step assembly and disassembly illustrations with tool usage
Inspections:
Wear limit inspections and allowable tolerances for all components
Fastener data:
Tightening torque specifications for all factory fasteners
Specifications:
All factory specifications, tolerances, and wear limits included
Torque values:
All factory torque specs and bolt specifications included
Tools:
Special service tool numbers with illustrations
Illustrations:
Detailed wiring diagrams, electrical schematics, and exploded-view parts diagrams
Part identification:
Component identification and location guides
Part numbers:
Exploded-view parts diagrams include OEM part numbers
Location guides:
Component identification and location guides included
Special tools:
Special service tool numbers with illustrations
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Primary engine (North America):
2.0L turbocharged inline-4 (TFSI), direct injection
Other market options:
1.8L TFSI inline-4 and 3.2L FSI V6 depending on market
Displacement details:
Refer to manual for detailed specifications per variant
2.0T TFSI output:
Approximately 211 hp (155 kW) for the B8 A4
3.2L FSI V6 output:
Approximately 265 hp (198 kW) where offered
Torque:
Refer to manual for factory torque and performance figures
Type:
Direct injection (FSI/TFSI) with turbocharging on 1.8T/2.0T
Fuel requirement:
Premium unleaded fuel recommended
Detailed specs:
Refer to manual for complete fuel system specifications
Standard:
6-speed manual transmission on base 2.0T quattro models
Optional:
Audi multitronic CVT (front-wheel drive) and 6-speed automatic (quattro)
Driveline:
Front-wheel drive or quattro permanent all-wheel drive
Manual coverage:
Complete transmission and drivetrain service procedures in the manual
Service data:
Fluid specifications, torque values, and adjustment procedures included
Wheelbase:
Approximately 110.2 in (2,801 mm) for the B8 sedan
Length:
Approximately 185.2 in (4,703 mm) for the B8 sedan
Body styles:
Sedan and Avant (wagon); Cabriolet ended after prior generation
Curb weight:
Approximately 3,530 lb (1,600 kg) for 2.0T quattro sedan
Precise figures:
Refer to manual for variant-specific weight specifications
IIHS rating:
B8 A4 earned IIHS Top Safety Pick for its era
NHTSA:
Refer to manual; detailed crash test data not covered in service manual
ABS:
Anti-lock braking system with electronic brake-force distribution
Stability control:
ESP electronic stabilization program standard
Traction control:
ASR traction control integrated with ESP
Airbags:
Front, side, and side-curtain airbag system
Structure:
Reinforced safety cell body structure
Restraints:
Pretensioning seat belts with load limiters
Audio system:
Available Audi concert or Bose surround sound audio systems
Interface:
MMI (Multi Media Interface) driver control system
Connectivity:
Available Bluetooth hands-free interface and AMI (Audi Music Interface)
Parking aid:
Available rear parking sensors (Audi parking system)
Lighting:
Available bi-xenon headlights with LED daytime running lights
Instrumentation:
Driver information system with trip computer
Service regime:
Audi LongLife service regime with variable intervals
Typical interval:
Approximately 10,000 miles / 12 months depending on driving conditions
Schedules:
Complete maintenance schedules included in the manual
Engine oil:
Synthetic oil meeting VW 502 00 specification
Other fluids:
Refer to manual for transmission, brake, and coolant specifications
Capacities:
All factory fluid capacities and tolerances included
Known Issues / Wear Items
Turbocharged engines:
Direct-injection TFSI engines benefit from regular oil changes; monitor carbon buildup
Common wear:
Brake pads/rotors, suspension bushings, and control arm components
Electrical:
Refer to manual troubleshooting flowcharts for symptom-based diagnosis
Manufacturer:
Audi AG (part of Volkswagen Group), Ingolstadt, Germany
Brand line:
A4 lineage traces to the Audi 80/90 series introduced in the 1970s
Badge origin:
Audi four rings represent the 1932 union of Audi, DKW, Horch, and Wanderer
First generation:
A4 name introduced in 1994 (B5), succeeding the Audi 80
This generation:
2009 marks the first year of the B8 A4 — larger, redesigned platform
Chronology:
B5 (1994-2001), B6 (2002-2005), B7 (2006-2008), B8 (2009 onward)
Assembly plant:
Ingolstadt, Germany
Note:
Refer to manual for vehicle-specific identification and plant codes