Positioning:
Premium executive sedan and wagon, with performance (S6, RS6) and all-terrain variants (Allroad)
Competitors:
BMW 5 Series, Mercedes-Benz E-Class, Volvo S80, Jaguar S-Type
Vehicle Focus:
Comfort, performance, advanced technology, quattro all-wheel drive system
Benefit:
Empowers owners and independent repair shops with professional-level diagnostic and repair information
Uniqueness:
All-encompassing coverage, including hybrid variants (if applicable for the specified year, though C5 A6 was not typically hybrid in 2001), making it a singular resource
Manual Scope:
Comprehensive service, repair, and maintenance for all variations
Specific Variants Covered:
Allroad Quattro, S6, RS6, Avant
Total Pages:
~10,000 pages
Type:
Workshop Service and Repair Manual
Additional Manuals Included:
Full maintenance manual, full wiring manual
Accessibility:
Instant download
Compatibility:
PC, Mac, Smartphone, Tablet
Powertrain:
Engine System, Fuel Charging and Controls, 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
Chassis:
Suspension, Wheels and Tyres, Driveline System, Driveshaft, Bearings, Brake System, Anti-Lock Control, Steering System, Subframe and Mounting System
Electrical:
Battery and Charging System, Information and Entertainment Systems, Lighting, Electrical Distribution, Electronic Feature Group, Instrument and Warning Systems, Wiring Manual (full)
Body:
Body System, Body Panels, Interior Trim, Mirrors, Seating, Glass, Frames and Mechanisms, Instrument Panel and Console, Wipers and Washers, Roof, Bumpers, Safety Belt System, Body Repairs, Metal Repairs
Climate Control:
Climate Control System, Air Distribution, Control Components
Maintenance:
Full maintenance procedures, service schedules
Repair:
Detailed repair instructions for all systems
Diagnostics:
Troubleshooting guides, diagnostic procedures
Installation:
Component installation procedures
Depth:
Dealer-level factory manual standard, covering all elements of service and repair
Organization:
Fully bookmarked sections for ease of use
Engine Options 2001 A6 C5:
2.4L V6 (165 hp), 2.8L V6 (190 hp), 4.2L V8 (340 hp for S6), 4.2L V8 Bi-Turbo (450 hp for RS6)
Engine Options 2001 Allroad:
2.7L Bi-Turbo V6 (250 hp)
Peak Horsepower Rs6:
450 PS (331 kW) @ 5700-6600 rpm (for the C5 RS6)
Peak Torque Rs6:
560 Nm (413 lb-ft) @ 1950-5000 rpm (for the C5 RS6)
Induction Type:
Naturally Aspirated and Bi-Turbocharged (for S6 and RS6)
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Petrol Engines:
V6 (2.4L, 2.8L), V8 (4.2L, 4.2L Bi-Turbo)
Diesel Engines:
The product description mentions Diesel variations, implying the availability of TDI engines such as the 2.5L TDI V6
Transmission Types:
5-speed Tiptronic automatic, 6-speed manual (for some models)
Transmission Options:
Tiptronic automatic transmission widely available, 6-speed manual in performance variants
Drivetrain:
Quattro permanent all-wheel drive system
Automatic Transmission Fluid:
Refer to manual for specific G 052 162 A2 or equivalent VW approved ATF
Manual Transmission Fluid:
Refer to manual for specific G 052 726 A2 or equivalent VW approved gear oil
Wheelbase A6:
2,760 mm (108.7 in)
Length A6 Sedan:
4,809 mm (189.3 in)
Length Allroad:
4,854 mm (191.1 in)
Curb Weight A6 V6:
Approx. 1,580 kg (3,483 lbs)
Curb Weight S6:
Approx. 1,700 kg (3,748 lbs)
Curb Weight Rs6:
Approx. 1,700 kg (3,748 lbs)
Curb Weight Allroad:
Approx. 1,810 kg (3,990 lbs)
NHTSA Front Impact:
Likely 4-star for driver and passenger (typical for the era)
IIHS Side Impact:
Likely Acceptable or Good (typical for the era)
Stability Control:
Electronic Stability Program (ESP)
Braking Assistance:
Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD)
Airbags:
Front airbags, side airbags, optional curtain airbags
Seatbelts:
Three-point inertia-reel seatbelts with pre-tensioners
Head Unit Options:
Concert, Symphony, Navigation Plus (RNS-D)
Audio System:
Bose premium sound system available on higher trims.
Parking Assistance:
Optional parking sensors (Parktronic)
Cruise Control:
Standard cruise control system
Phone Integration:
Optional Bluetooth preparation or integrated car phone systems.
Headlight Options:
Halogen projector, Xenon headlights with automatic leveling
Oil Change Interval:
Typically 10,000 miles or 1 year, whichever comes first (with LongLife service regime possible)
Timing Belt Interval:
Refer to manual for specific engine; V6 engines typically require replacement around 70,000-105,000 miles or 5-7 years. Some later models and specific engines may have maintenance-free timing chains.
Engine Oil Viscosity:
Refer to manual; typically 5W-40 or 0W-30 synthetic oil meeting VW 502 00/505 00 standards.
Coolant:
G 12 or G 12+ (Pink/Red) ethylene glycol based coolant, mixed 50/50 with distilled water.
Common Problems C5:
Ignition coil failure, oil leaks (valve cover gaskets, oil pan), ABS sensor failures, climate control module issues, suspension component wear (especially on Allroad models), catalytic converter failure, CV joint wear.
Rs6 Specific Issues:
Turbocharger oil line leaks, intercooler hose failures, catalytic converter degradation.
Example Oil Filter Part Number:
078 115 561 B (for some V6 engines, consult manual for precise fitment)
Example Air Filter Part Number:
4B0 133 843 G (for some 2.8L V6 engines, consult manual for precise fitment)
Brand Focus:
Audi is renowned for its pioneering use of quattro all-wheel drive, sophisticated engineering, and luxurious interiors.
A6 C5 Generation:
The C5 generation (1997-2004 for A6, 2001-2005 for RS6) marked a significant step in Audi's design language, featuring a more aerodynamic and flowing body style.
Performance Variants:
The S6 and RS6 variants were introduced to offer higher performance, with the RS6 being a homologation special derived from motorsport.
Allroad Variant:
The Allroad Quattro variant introduced adjustable air suspension and increased ride height, creating a capable all-weather, all-terrain luxury wagon.
Manufacturing Locations:
Primarily produced in Ingolstadt and Neckarsulm, Germany.
General Audi Awards:
Audi consistently received awards for design, engineering, and quality throughout the C5 generation.
Specific Model Awards:
The A6 platform generally received positive reviews for its blend of comfort, performance, and technology. The Allroad variant was lauded for its versatility.
