🏷️ Basic Information

Make:

Audi

Model:

A4 S4

Production Years Covered:

2003, 2004, 2005, 2006

Chassis Code:

B6

Engine Codes Common:

APDB, BBK

👋 Introduction

Vehicle Segment:

Compact Executive Sedan/Wagon

Performance Variant:

S4 signifies the high-performance variant of the A4 line.

Key Competitors:

BMW 3 Series (E46/E90), Mercedes-Benz C-Class (W203/W204)

Manual Advantage 1:

Low price and instant access.

Manual Advantage 2:

Comprehensive parts listings for accurate repairs.

Manual Advantage 3:

Original manufacturer data quality.

📋 Manual Details

Manual Type:

Parts Catalog / Parts Manual

Language:

English

File Format:

PDF

Compatibility:

All Versions of Windows & Mac

Delivery Method:

Instant Download

📖 Manual Coverage

Powertrain:

Engine components, fuel system, cooling system, exhaust system, engine management

Drivetrain:

Transmission (manual/automatic), clutch, driveshafts, differential, axles

Suspension Steering:

Front and rear suspension components, steering rack, steering column, power steering system

Braking System:

Brake discs, calipers, pads, brake lines, ABS components, parking brake

Wheels Tires:

Wheel assemblies, tire specifications, bolt patterns

Electrical System:

Wiring diagrams (implied by parts), lights, sensors, ECUs, battery, starter, alternator

Body And Exterior:

Body panels, bumpers, doors, windows, mirrors, trim, lighting units

Interior:

Seating, dashboard components, interior trim, airbags (component identification)

Part Identification:

Detailed listings and diagrams of all original Audi parts

Part Number Lookup:

Essential for accurate ordering of replacement parts

Component Assembly Diagrams:

Exploded views showing how parts fit together

Ordering Information:

Guidelines for requesting parts with full item description and part number

Depth Level:

Component-level identification and listing for repair and replacement purposes

Application Scope:

Covers all factory-fitted parts for the specified Audi A4 S4 generation

📊 Manual Specifications

PDF Quality:

Implied High Quality (Original Manufacturer Book Data)

Searchable Text:

Likely, depending on PDF creation method, but not explicitly guaranteed.

Printability:

Printable, but may require unzipping for larger files.

Binding:

Not Applicable (Digital Download)

Paper Type:

Not Applicable (Digital Download)

⚙️ Engine Specifications

Engine Type S4:

4.2L V8 FSI (Naturally Aspirated)

Horsepower S4:

340 hp @ 7000 rpm

Torque S4:

317 lb-ft (430 Nm) @ 3500 rpm

Fuel Delivery:

Fuel Injection (FSI - Fuel Stratified Injection)

Cylinders S4:

8

Displacement S4:

4163 cc

Engine Code Example:

BBK

🔧 Transmission

Transmission Type S4 Standard:

6-Speed Manual

Transmission Type S4 Optional:

6-Speed Tiptronic Automatic

Drivetrain:

Quattro Permanent All-Wheel Drive

📐 Dimensions

Length Sedan:

Approx. 4581 mm (180.4 in)

Width Sedan:

Approx. 1766 mm (69.5 in)

Height Sedan:

Approx. 1418 mm (55.8 in)

Wheelbase Sedan:

Approx. 2650 mm (104.3 in)

Curb Weight S4 Manual:

Approx. 1695 kg (3737 lbs)

Curb Weight S4 Auto:

Approx. 1730 kg (3814 lbs)

🛡️ Safety Features

NHTSA Driver Front 2004:

5-Star

NHTSA Passenger Front 2004:

5-Star

IIHS Frontal Offset 2004:

Good

ABS:

Standard

Esc:

Electronic Stability Control (ESP)

Traction Control:

Traction Control System (ASR)

Airbags Front:

Dual Front Airbags

Airbags Side:

Front Side Airbags

Airbags Curtain:

Optional Sideguard Curtain Airbags

💡 Technology Features

Infotainment System:

Audi Symphony or Concert audio systems; optional navigation (MMI system introduced later in the generation for some models/facelifts).

Parking Assistance:

Optional Parking Sensors (front and rear).

Cruise Control:

Standard cruise control.

Connectivity Options:

Optional CD changer, optional satellite radio preparation, optional Bluetooth hands-free phone preparation.

🔧 Maintenance

Oil Change Interval Typical:

Every 10,000 miles or 1 year (check owner's manual for specific details)

Major Service Interval Typical:

Refer to Audi service schedule, typically around 30,000, 60,000, 90,000 miles for inspections and replacements (e.g., spark plugs, filters, timing belt if applicable - though V8 uses a chain).

Engine Oil Type:

SAE 0W-40 (fully synthetic, meeting VW 502 00 / 505 00 specifications)

Coolant Type:

G12 Plus (or compatible ethylene glycol-based coolant with pink/red color)

Brake Fluid Type:

DOT 4

Transmission Fluid Manual:

GL-4 or GL-5 gear oil (specific viscosity required, e.g., 75W-90)

Transmission Fluid Automatic:

Audi-specific ATF fluid (e.g., G 052 162 A2 for Tiptronic)

Common Issue Ignition:

Coil pack failure, spark plug issues.

Common Issue Oil Leaks:

Valve cover gaskets, oil pan gaskets, oil cooler seals.

Common Issue Suspension:

Control arm bushings, ball joints, tie rod ends (wear items).

Common Issue Exhaust:

Exhaust manifold cracks (on some V8 applications).

Common Issue Timing System:

Timing chain tensioners and guides (can be a significant repair on V8 models).

📚 Vehicle History

Brand Heritage:

Audi AG, a German automobile manufacturer with a long history of producing premium vehicles.

Generation Name:

B6 Generation (Typ 8E/8H)

S4 Introduction Era:

The S4 designation has a long lineage within Audi, evolving through multiple generations to represent the sportiest iteration of the A4.

Manufacturing Location:

Ingolstadt, Germany

🏆 Awards & Recognition

Car And Driver 10Best:

Audi A4 (in various forms) frequently appeared on Car and Driver's 10Best list during this period, often for its handling and performance balance.

Ward Powertrain Award:

The 4.2L V8 engine used in the S4 was recognized by Ward's AutoWorld for its performance and refinement.