Empowers owners and independent technicians with factory-level diagnostic and repair information, facilitating accurate and efficient maintenance and repairs, saving time and money.
Expert-level diagnostics, detailed component removal and installation, complete rebuild procedures, wiring diagrams, specifications, and torque values.
📊 Manual Specifications
File Format
Software Requirements:
Compatible with Windows operating systems (typically XP, Vista, 7, 8, 10). May require specific browser plugins or Java. Installation via CD-ROM or download.
Print Quality
Printability:
Printable individual pages or sections. High-resolution diagrams and illustrations.
Quattro permanent all-wheel drive system with self-locking center differential (Torsen) or crown-gear center differential, and advanced torque vectoring.
G 052 171 A2 or G 055 726 A2 (GL-4/GL-5 SAE 75W-90)
Automatic Transmission Fluid:
G 055 005 A2 (Multitronic) or G 055 025 A2 (Tiptronic)
📐 Dimensions
Exterior
Length:
4703 mm (185.2 in) Sedan / 4699 mm (185.0 in) Avant
Width:
1811 mm (71.3 in) excluding mirrors
Height:
1427 mm (56.2 in) Sedan / 1438 mm (56.6 in) Avant
Interior
Wheelbase:
2808 mm (110.6 in)
Cargo
Trunk Volume:
480 L (16.9 cu ft) Sedan / 490 L (17.3 cu ft) Avant (expandable to 1430 L with rear seats folded)
Weights
Curb Weight:
1500 - 1700 kg (3307 - 3748 lbs) depending on engine and drivetrain
Wheels Tires
Wheel Bolt Pattern:
5x112
Tire Sizes:
Typically 205/60 R16, 225/50 R17, 245/40 R18 (depending on trim and options)
🛡️ Safety Features
Ratings
NHTSA Ratings:
5-star frontal and side crash test ratings (US models)
IIHS Ratings:
Top Safety Pick
Active Features
Driver Assistance:
Anti-lock Braking System (ABS), Electronic Stability Program (ESP) with Traction Control (ASR), Electronic Brake-force Distribution (EBD), Brake Assist (BA), Tire Pressure Monitoring System (TPMS), Adaptive Cruise Control (ACC) (optional), Audi Lane Assist (optional), Audi Side Assist (optional).
Passive Features
Airbag System:
Driver and front passenger airbags, front side airbags, Sideguard head curtain airbags, optional rear side airbags.
Seatbelts:
Three-point inertia-reel seatbelts with belt tensioners and force limiters, ISOFIX child seat anchorage points.
💡 Technology Features
Infotainment
Mmi System:
Multi Media Interface (MMI) with optional navigation, Bluetooth connectivity, CD/DVD player, SD card reader. Audi Music Interface (AMI) for iPod integration.
Sound Systems:
Standard Audi sound system, optional Bang & Olufsen sound system.
Driver Assistance
Advanced Options:
Adaptive Cruise Control (ACC) with integrated radar, Audi Parking System Advanced (front and rear parking sensors with rearview camera), Audi Drive Select (adjusts steering, throttle, and suspension settings).
Halogen headlights with LED daytime running lights, optional Xenon Plus headlights with LED daytime running lights and adaptive cornering function.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically 15,000 km (9,375 miles) or 12 months, whichever comes first. Flexible service system (ASF) may adjust based on driving conditions. Consult owner's manual for exact intervals and conditions.
Major Service Points:
Timing belt replacement (for older engines, though B8 TFSI engines use chains), spark plug replacement (e.g., 60,000-100,000 km), brake fluid flush (every 2 years), cabin air filter replacement (yearly).
Fluid Specifications
Engine Oil Type:
SAE 0W-30 or 5W-30, meeting VW 504 00 / 507 00 specifications (e.g., Mobil 1 ESP Formula, Castrol Edge Professional).
Coolant Type:
G12 EVO (pink) or G13 (purple) coolant, mixed with distilled water at a 50/50 ratio.
Worn control arm bushings (front and rear), premature brake wear, steering rack leaks, sunroof drain blockage leading to water ingress.
📚 Vehicle History
Brand Heritage
Audi Legacy:
Audi AG, a German luxury automobile manufacturer, part of the Volkswagen Group. Known for its 'Vorsprung durch Technik' (Advancement through Technology) slogan and pioneering front-wheel drive and Quattro AWD systems.
Model Evolution
A4 Lineage:
The A4 succeeded the Audi 80/90 and has been produced in multiple generations since 1994. The 2009 model represents the introduction of the highly acclaimed B8 generation, designed by Walter de Silva.
Production
Manufacturing Locations:
Main production facility in Ingolstadt, Germany. Also produced in Neckarsulm, Germany, and Kaluga, Russia (for the Russian market).
Platform
Chassis Platform:
Volkswagen Group MLB (Modular Longitudinal Matrix) platform, shared with models like the Audi Q5 and Porsche Macan (though Macan is later).
🏆 Awards & Recognition
Recognitions
Car And Driver:
Car and Driver '10Best' list for several consecutive years during its production run, acknowledging its driving dynamics and overall quality.
Consumers Reports:
Generally received good to excellent ratings from consumer organizations for reliability and owner satisfaction in its segment, though specific model years and engine variants could vary.
Certifications
Safety Certifications:
Achieved top safety ratings from major regulatory bodies like NHTSA and IIHS.