🏷️ Basic Information

Make:

Audi

Model:

A4

Year:

2001

Generation Code:

B5 (Second Generation Facelift)

Chassis Code:

8D2 (Sedan), 8D5 (Avant)

👋 Introduction

Segment:

Premium Compact Executive Car

Target Audience:

Audi A4 owners seeking to perform maintenance and repairs themselves, or independent repair shops specializing in European vehicles.

Competitors 2001:

BMW 3 Series (E46), Mercedes-Benz C-Class (W203), Lexus IS, Acura TL.

Vehicle Attributes:

Known for its upscale interior, refined ride, available Quattro all-wheel drive, and strong turbocharged engine options.

Value:

Provides comprehensive OEM-level repair and maintenance information, enabling cost savings and empowering owners with accurate procedures.

Convenience:

Instant download, printable pages for workshop use, and lifetime protection policy enhance usability and long-term value.

📋 Manual Details

Covered Models:

2001 Audi A4 (Sedan and Avant)

Engine Variants Covered:

Includes information for 1.8L Turbocharged I4 and 2.8L V6 engines.

Transmission Variants Covered:

Covers both manual and automatic transmissions.

Estimated Page Count:

Approximately 1500-2000 pages (typical for a comprehensive OEM repair manual).

Type:

OEM Factory Service Manual / Workshop Repair Manual

Language:

English (presumed, based on vendor description and common practice for North American market)

Format:

Downloadable PDF

📖 Manual Coverage

Engine Repair:

Detailed diagnostics, removal, installation, overhaul, timing belt replacement, cylinder head service, piston and ring replacement, crankshaft and bearing service.

Fuel System:

Fuel injection system diagnostics and repair, fuel pump and filter replacement, injector service, fuel pressure testing.

Lubrication And Cooling:

Oil pump service, oil pan gasket replacement, radiator and coolant system maintenance, water pump replacement, thermostat service, fan clutch/electric fan operation.

Engine Management:

Ignition system troubleshooting, sensor diagnostics (MAF, MAP, O2, Crankshaft Position, Camshaft Position), ECU troubleshooting, emissions control system diagnostics.

Transmission Repair:

Manual transmission clutch inspection and replacement, gear selection mechanism, automatic transmission diagnostics, fluid and filter changes, torque converter service, shift control systems.

Drivetrain:

Front axle, rear axle (for Quattro models), drive shafts, CV joints, differential service, wheel bearing replacement.

Steering:

Power steering system diagnosis, pump replacement, steering rack and pinion service, tie rod ends, steering column adjustments.

Suspension:

Front and rear suspension component replacement (struts, shock absorbers, control arms, ball joints, bushings), alignment procedures, spring replacement.

Brakes:

Brake system diagnosis, hydraulic system bleeding, brake pad and rotor replacement, caliper service, parking brake adjustment, ABS system troubleshooting.

Electrical System:

Wiring diagrams, component testing, starter motor and alternator service, battery charging system, lighting system repair, fuse and relay identification, power windows, locks, mirrors.

HVAC:

Climate control system diagnosis, blower motor replacement, A/C system servicing (refrigerant handling, compressor, condenser, evaporator), heater core replacement.

Bodywork:

Body panel alignment, door and tailgate mechanisms, interior trim removal and installation, bumper repair and replacement.

Chassis And Frame:

Chassis component inspection and repair, subframe mounting, torque specifications for chassis fasteners.

Routine Maintenance:

Oil and filter changes, air filter replacement, spark plug replacement, coolant flushes, brake fluid changes, tire rotations.

Engine Rebuild:

Comprehensive instructions for engine overhaul, including torque sequences and specifications.

Troubleshooting:

Diagnostic flowcharts and symptom-based troubleshooting guides for various systems.

Component Replacement:

Step-by-step instructions for replacing virtually every major and minor component.

Diagnostic Testing:

Instructions for using diagnostic tools and performing electrical tests.

Depth:

Expert-level technical information, covering everything from basic maintenance to complex repairs and diagnostics, suitable for professional technicians and advanced DIY enthusiasts.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely searchable text, facilitating quick access to specific information.

Quality:

High-resolution digital reproduction of OEM factory documentation, ensuring clarity of text and diagrams.

Binding:

Not applicable (digital download).

Paper Type:

Not applicable (digital download).

⚙️ Engine Specifications

Engine 1 Displacement:

1.8 L (1781 cc)

Engine 1 Type:

DOHC 20-valve turbocharged inline-4 (APU, ARK, AWM, ATW engine codes)

Engine 1 Horsepower:

170 hp @ 5900 rpm (AWM, ATW)

Engine 1 Torque:

165 lb-ft @ 1950 rpm (AWM, ATW)

Engine 2 Displacement:

2.8 L (2771 cc)

Engine 2 Type:

DOHC 30-valve V6 (ATQ engine code)

Engine 2 Horsepower:

190 hp @ 6000 rpm

Engine 2 Torque:

207 lb-ft @ 3200 rpm

0 60 Mph 1.8T:

Approx. 7.5-8.0 seconds

0 60 Mph 2.8L:

Approx. 7.0-7.5 seconds

Fuel Type:

Unleaded gasoline (premium recommended)

Injection Type:

Multi-point fuel injection (MPI)

ECU Platform:

Bosch Motronic (specific ECU part numbers would be in manual)

🔧 Transmission

Manual Transmission:

5-speed manual (available on most models)

Automatic Transmission:

5-speed Tiptronic automatic (available on most models)

AWD System:

Optional Torsen center differential Quattro permanent all-wheel drive system.

Manual Transmission Fluid:

G 052 171 A2 (or equivalent API GL-4, SAE 75W-90 synthetic)

Automatic Transmission Fluid:

G 055 025 A2 (or equivalent ATF specification, refer to manual for exact specs)

📐 Dimensions

Wheelbase:

102.6 inches (2606 mm)

Length Sedan:

180.1 inches (4575 mm)

Length Avant:

182.2 inches (4628 mm)

Width:

69.4 inches (1763 mm)

Height:

55.5 inches (1410 mm)

Curb Weight 1.8T FWD:

Approx. 3263 lbs (1480 kg)

Curb Weight 2.8Q:

Approx. 3571 lbs (1620 kg)

Gross Vehicle Weight Rating:

Refer to vehicle VIN plate for specific GVWR

Cargo Volume Sedan:

Approx. 15.1 cu ft (428 L)

Cargo Volume Avant:

Approx. 20.2 cu ft (572 L) / 49.6 cu ft (1407 L) with rear seats folded

🛡️ Safety Features

NHTSA Front Impact:

4 stars (driver), 4 stars (passenger) (2001 model year typical)

IIHS Front Offset:

Good (for models equipped with side airbags)

Traction Control:

Traction Control System (ASR) standard on most models.

ABS:

Anti-lock Braking System (ABS) standard.

Airbags:

Driver and front passenger airbags standard. Optional side airbags (Thorax airbags) and side curtain airbags available.

Seatbelts:

3-point inertia-reel seatbelts with pretensioners and force limiters.

💡 Technology Features

Audio System:

Factory AM/FM stereo with CD player, optional premium sound system (Bose).

Navigation:

Optional Audi Navigation System (RNS-D).

Cruise Control:

Standard cruise control.

Phone Integration:

Optional factory hands-free phone preparation (Bluetooth not typically available on this model year).

🔧 Maintenance

Oil Change Interval:

Typically 5,000 to 7,500 miles or 12 months, whichever comes first, depending on driving conditions (refer to manual for specific recommendation based on oil type used).

Timing Belt Replacement:

Crucial maintenance item. For 1.8T models, recommended interval is typically 60,000-100,000 miles or 5-7 years. For 2.8L V6, it's a timing chain system which is generally maintenance-free but requires inspection. *Crucially, the manual will specify the exact interval and parts kit.*

Spark Plug Replacement:

Approximately 40,000 to 60,000 miles for iridium spark plugs, earlier for standard plugs.

Coolant Flush:

Every 30,000-50,000 miles or 2-3 years.

Brake Fluid Change:

Every 2 years, regardless of mileage.

Engine Oil Specification 1.8T:

SAE 5W-40 synthetic oil meeting VW 502 00 specification.

Engine Oil Specification 2.8L:

SAE 5W-40 synthetic oil meeting VW 502 00 specification.

Coolant Type:

G 12 Plus (or G 12++), propylene glycol-based antifreeze mixed 50/50 with distilled water.

Power Steering Fluid:

G 002 000 (or Pentosin CHF 11 S).

Common Issues 1.8T:

PCV valve failure, coil pack failure, oil sludge (if maintenance neglected), boost leaks, catalytic converter issues, coolant flange leaks.

Common Issues 2.8L:

Timing chain tensioner guides wear, coolant flange leaks, oil leaks from valve cover gaskets and oil pan.

General Issues:

Window regulator failure, HVAC blower motor resistor failure, CV axle wear, suspension component wear (control arm bushings, ball joints).

📚 Vehicle History

Brand Focus:

Audi AG, a German manufacturer of automobiles, known for its 'Vorsprung durch Technik' (Progress through Technology) slogan, emphasis on quattro all-wheel drive, and premium vehicle offerings.

B5 Generation Overview:

The B5 generation of the Audi A4 debuted in 1994 and received a significant facelift for the 2001 model year, including revised front and rear styling, updated interior trim, and powertrain enhancements. The 2001 model represents the later stages of this generation.

Production Dates:

2001 model year

Manufacturing Locations:

Primarily Ingolstadt, Germany.

🏆 Awards & Recognition

Award 1:

Car and Driver 10Best (often awarded to the A4 generation in preceding years, indicating strong market perception).

Award 2:

Edmunds.com praised the refined interior and driving dynamics of the B5 A4.