🏷️ Basic Information

Make:

Audi

Model:

A6 C6

Model Variants Covered:

A6, S6, RS6, Allroad Quattro

Production Years Covered:

2005

Chassis Codes:

C6 (Type 4F)

👋 Introduction

Vehicle Segment:

Executive Sedan/Wagon

Competitive Landscape:

Competed with models such as BMW 5 Series, Mercedes-Benz E-Class, and Lexus GS.

Quattro:

Standard on Allroad, S6, RS6, and optional on A6 models, offering enhanced traction and handling.

Luxury Appointments:

High-quality interior materials, advanced technology, and a comfortable ride characterized the A6 C6 range.

Performance Variants:

S6 and RS6 models offered significantly enhanced performance with V8 and V10 engines respectively.

Target Audience:

Audi A6 C6 owners (all variants) seeking professional-level service and repair information.

Uniqueness:

Comprehensive coverage of all engine types (including Hybrid, though this is an unusual claim for a 2005 C6 A6 and may refer to later models or a misunderstanding) and variants in a single, easy-to-use PDF.

📋 Manual Details

Geographical Coverage:

Global (typical for Audi service information)

Trim Levels Covered:

All trim levels including S6, RS6, and Allroad Quattro

Total Pages:

Approx. 10,000

Type:

Workshop Service and Repair Manual

Additional Manuals Included:

Full Maintenance Manual, Full Wiring Manual

Language:

English (inferred from typical product descriptions)

Format:

PDF

Download Availability:

Instant Download

Compatibility:

PC, Mac, Smartphone, Tablet

📖 Manual Coverage

Powertrain:

Engine Systems (all variations), Fuel Charging & Controls, Accessory Drive, Starting System, Engine Ignition, Engine Emission Control, Intake Air Distribution, Emissions, Electronic Engine Controls, Manual Transmission, Clutch Controls, Exhaust System, Fuel System, Acceleration Control, Speed Control

Drivetrain:

Driveline System, Driveshaft, Bearings, Quattro All-Wheel Drive System

Chassis:

Suspension, Wheels & Tyres, Brake System, Anti-Lock Control, Steering System, Subframe and Mounting System

Body:

Body System, Body Panels, Interior Trim, Mirrors, Seating, Glass, Frames and Mechanisms, Instrument Panel and Console, Wipers and Washers, Roof, Bumpers, Body Repairs, Metal Repairs

Electrical:

Full Wiring Manual, Battery and Charging System, Information and Entertainment Systems, Lighting, Electrical Distribution, Electronic Feature Group

Climate Control:

Climate Control System, Air Distribution, Control Components

Safety Systems:

Safety Belt System

Maintenance:

Full Maintenance Manual, Service Information, Scheduled Maintenance Intervals, Fluid Changes

Repair:

Detailed repair procedures for all systems, Component replacement, Overhaul procedures, Diagnosis and troubleshooting

Diagnostics:

Troubleshooting guides, Diagnostic trouble codes (DTCs) interpretation (inferred from dealer-level manuals)

Electrical Diagnostics:

Wiring diagrams, Circuit tracing, Component testing, Fault finding for electrical systems

Special Procedures:

Jacking and Lifting, Noise Vibration and Harshness (NVH) analysis

Depth:

Dealer-level factory manual standard, Comprehensive coverage for service, repair, and maintenance

📊 Manual Specifications

Quality:

High-quality PDF (implied by dealer-level standard)

Searchability:

Searchable text (implied by PDF format and bookmarking)

Bookmarking:

Fully bookmarked for ease of use

Scalability:

Printable at standard document sizes

Binding:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

A6 Base Engine 2005:

3.2L FSI V6 (CALA, CALB, CALC engines)

A6 Other Engines:

2.4L V6 (BDW), 4.2L FSI V8 (BARA, BARB)

S6 Engine:

5.2L FSI V10 (BAUR)

Rs6 Engine:

5.0L Twin-Turbo V10 (BWSA) - Note: The RS6 C6 typically uses a 5.0L V10 twin-turbo, production for the C6 RS6 started in 2008, so a 2005 manual covering this is unlikely unless it covers pre-production or the subsequent model year.

Allroad Engines:

3.2 FSI V6, 4.2 FSI V8, 2.7 TDI V6, 3.0 TDI V6 (depending on market and exact year)

A6 3.2 Fsi Hp:

255 hp @ 6500 rpm

A6 3.2 Fsi Torque:

243 lb-ft @ 3250 rpm

S6 5.2 Fsi Hp:

435 hp @ 6800 rpm

S6 5.2 Fsi Torque:

398 lb-ft @ 3000 rpm

Injection Type:

Direct Injection (FSI) or Multi-Point Injection (MPI), Common Rail Diesel Injection (TDI)

Fuel Type:

Premium Unleaded Gasoline (for FSI and MPI), Diesel

🔧 Transmission

A6 Transmission Options:

6-speed Tiptronic automatic, 6-speed manual

S6 Transmission:

6-speed Tiptronic automatic

Rs6 Transmission:

6-speed Tiptronic automatic

Tiptronic:

Steering wheel mounted paddle shifters and manual shifting gate.

Quattro AWD:

Standard, typically with a Torsen center differential.

📐 Dimensions

A6 C6 Sedan Length:

Approx. 4916 mm (193.5 in)

A6 C6 Avant Length:

Approx. 4933 mm (194.2 in)

A6 C6 Allroad Length:

Approx. 4934 mm (194.3 in)

A6 C6 Width:

Approx. 1855 mm (73.0 in)

A6 C6 Height:

Approx. 1459 mm (57.4 in) (Sedan), 1463 mm (57.6 in) (Avant), 1476 mm (58.1 in) (Allroad)

A6 3.2 Quattro Curb Weight:

Approx. 1740 kg (3836 lbs)

S6 Curb Weight:

Approx. 1935 kg (4266 lbs)

Rs6 Curb Weight:

Approx. 2025 kg (4464 lbs)

🛡️ Safety Features

NHTSA Front Impact:

5-Star (typical for Audi of this era)

IIHS Top Safety Pick:

Yes (typically awarded to A6 models)

ABS:

Standard Anti-lock Braking System

Esp:

Standard Electronic Stability Program (ESP)

Traction Control:

Standard Traction Control System (ASR)

Airbags:

Frontal airbags, side airbags, curtain airbags (standard)

Seatbelts:

Three-point inertia-reel seatbelts with pre-tensioners and belt force limiters.

💡 Technology Features

Mmi:

Multi Media Interface (MMI) system, typically a first-generation system with navigation, radio, climate control, and vehicle settings.

Audio Options:

Standard Audi sound system, optional Bose or Bang & Olufsen premium audio systems.

Adaptive Cruise Control:

Optional Adaptive Cruise Control (ACC).

Parking Sensors:

Optional front and rear parking sensors (Audi parking system).

Bluetooth:

Optional Bluetooth connectivity for hands-free calling.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 1 year, or as indicated by the vehicle's flexible service system (Audi Service Interval Display - ASID).

Interval Diesel:

Often 15,000 miles or 1 year for TDI models with specific oil.

Engine Oil Specification:

API SN/SP, ACEA C3, VW 504 00 / 507 00 (for FSI gasoline and TDI diesel engines, consult manual for specific viscosity, e.g., 5W-30).

Transmission Fluid Automatic:

G 055 005 A2 (or equivalent for Tiptronic)

Transmission Fluid Manual:

G 052 171 A2 (or equivalent for 6-speed manual)

Coolant:

G 12 Plus Plus (G13) or G 12 Plus (G12+) coolant, typically pink/red.

Brake Fluid:

DOT 4 Class 6

Coil Packs:

Ignition coil pack failures are common across many Audi models of this era.

Pcv Valve:

Positive Crankcase Ventilation (PCV) valve failures leading to oil leaks or rough running.

Thermostat:

Thermostat housing leaks or failure affecting engine temperature regulation.

Oil Leaks:

Valve cover gaskets, oil filter housing seals, and front crankshaft seals are prone to leaks.

Air Suspension Allroad:

Air suspension compressor and/or air springs can fail on Allroad models.

📚 Vehicle History

Audi Legacy:

Audi, a German manufacturer with a long history of automotive innovation, known for its Quattro all-wheel-drive system and premium vehicles.

A6 Generations:

The C6 generation (Type 4F) was introduced in 2004 for the 2005 model year, succeeding the C5 generation and featuring a more angular design and advanced technology.

Allroad Quattro Positioning:

The Allroad Quattro variant was an elevated, more rugged version of the A6 Avant, designed for light off-road capability and enhanced versatility.

Manufacturing Location:

Germany (Neckarsulm plant)

🏆 Awards & Recognition

Car And Driver Best 10:

Audi A6 often featured on Car and Driver's 10Best list in previous generations, and was highly regarded for its segment.

Ward Best Interiors:

Audi interiors frequently recognized for their quality and design.