Segment:
Compact Executive Car (Premium Compact)
Target Audience:
Audi owners seeking in-depth repair and maintenance information, professional mechanics
Competitors:
BMW 3 Series (E46), Mercedes-Benz C-Class (W203), Volvo S40/V40
Manual Features:
Comprehensive coverage, detailed illustrations, step-by-step instructions, diagnostic guidance
Vehicle Features:
Quattro all-wheel drive availability, refined interior, strong performance for its class
Engine:
Detailed repair, overhaul, and diagnostics for all engine variants
Powertrain:
Transmission (Manual & Automatic), Clutch, Drivetrain, Axles
Chassis:
Suspension (Front & Rear), Steering System, Brakes (ABS, Hydraulic & Mechanical Components)
Electrical:
Complete Electrical System, Wiring Diagrams, Diagnostics, ECU Functions
Body:
Bodywork, Interior Trim, Doors, Windows, Exterior Components
HVAC:
Heating, Ventilation, and Air Conditioning System
Fuel System:
Fuel delivery, injection, and emissions control
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections
Repair:
Step-by-step repair procedures for all major components and systems
Troubleshooting:
Diagnostic procedures, symptom-based troubleshooting, common fault identification
Rebuild:
Engine and transmission rebuild procedures
Diagnostics:
OBD-II diagnostics, sensor testing, electronic module troubleshooting
Depth:
Comprehensive, suitable for professional technicians and advanced DIY mechanics
Detail Level:
Detailed sub-steps, notes, cautions, and warnings for critical information
Illustrations:
Detailed illustrations, drawings, photos, and enlarged insets for parts identification
Engine Options:
Likely covers 1.8L Turbo (APU, ARK, AWT), 2.8L V6 (ACK, AHA, APU), 2.7L V6 Bi-Turbo (APU, AZA - S4 variant implicitly)
Horsepower Range:
Approx. 150-265 hp depending on engine variant
Torque Range:
Approx. 155-295 lb-ft depending on engine variant
Induction:
Naturally Aspirated and Turbocharged
Injection Type:
Electronic Fuel Injection (EFI)
Common Codes:
APU, ARK, AWT (1.8T), ACK, AHA, APU (2.8 V6), AWE, BBD (2.7 Bi-Turbo - S4)
Length:
Approx. 4515 mm (177.8 in)
Width:
Approx. 1772 mm (69.8 in)
Height:
Approx. 1433 mm (56.4 in)
Cargo Volume:
Approx. 455 liters (16.1 cu ft) with rear seats up
Curb Weight:
Varies by engine and drivetrain, approx. 1450-1650 kg (3197-3638 lbs)
NHTSA Front Impact:
Not readily available for this specific model year and variant
IIHS Ratings:
Likely Good in frontal offset, but specific ratings for 2001 Avant are scarce
ABS:
Standard Anti-lock Braking System
Esp:
Optional Electronic Stability Program (ESP)
Airbags:
Frontal airbags, side airbags, optional curtain airbags
Seatbelts:
Pretensioner seatbelts with force limiters
Audio System:
Factory Audi Symphony or Concert CD/Radio systems, optional CD changer.
Navigation:
Optional Audi Navigation System (RN-S)
Cruise Control:
Standard cruise control system
Phone Integration:
Optional factory-installed mobile phone preparation with hands-free system.
Oil Change Interval:
Typically 7,500-10,000 miles (12,000-16,000 km) or 1 year, depending on driving conditions and oil type. Consult specific manual for 'long-life' service.
Timing Belt Replacement:
For 2.8 V6 engines, typically around 70,000-100,000 miles. 1.8T engines have a timing chain.
Engine Oil:
Likely SAE 5W-40 or 5W-30 Synthetic, meeting VW 502.00 / 505.00 specifications. Check specific engine variant.
Coolant:
G12 (Pink) Antifreeze/Coolant concentrate, mixed 50/50 with distilled water.
Transmission Fluid Manual:
GL-4 Gear Oil, typically SAE 75W-90
Transmission Fluid Automatic:
G 004 000 M2 (ATF), or equivalent. Consult manual for exact type and capacity.
Ignition Coils:
Coil-on-plug ignition systems can be prone to failure.
Mass Air Flow Sensor:
Can become dirty or fail, leading to rough idle and poor performance.
Oil Leaks:
Valve cover gaskets, oil pan gaskets, and vacuum lines can develop leaks.
Suspension:
Worn control arm bushings and tie rod ends are common wear items.
Cv Joints:
Front CV joint boots can tear, leading to joint failure.
Brand:
Audi AG, German automotive manufacturer known for premium vehicles and quattro AWD system.
B5 Generation:
The B5 generation A4 was produced from 1994 to 2001, with a facelift in 1999. The 2001 model represents the later part of this generation.
Manufacturing Location:
Germany (primarily Ingolstadt)
