Vehicle Segment:
Compact Executive/Performance Sedan
Target Audience:
Enthusiasts, owners seeking DIY maintenance and repair, independent repair shops specializing in European vehicles.
Key Competitors:
BMW 330i, Mercedes-Benz C320, Volvo S60 T5.
Manual Advantage:
Provides OEM-level detail for the high-performance Audi S4, crucial for specialized maintenance and repairs of its bi-turbo engine and Quattro system.
Digital Benefit:
Instant access, portability (smartphones/tablets), and protection from workshop grime compared to paper manuals.
Engine Systems:
Engine mechanical, lubrication, cooling, fuel delivery, ignition, emissions control, turbocharger system, intercoolers.
Drivetrain Systems:
Manual transmission, clutch system, Quattro all-wheel drive system (differentials, driveshafts).
Suspension Steering:
Front and rear suspension components, shock absorbers, struts, steering rack, power steering system.
Brake Systems:
Front and rear disc brakes, ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution).
Electrical Systems:
Battery, charging system, starter, lighting, instruments, comfort electronics, ECU (Engine Control Unit), wiring diagrams.
Body Chassis:
Body panels, doors, windows, interior trim, chassis components, accident repair information.
Maintenance Procedures:
Routine inspections, oil changes, filter replacements, spark plug replacement, belt inspections/replacement.
Repair Procedures:
Engine disassembly/assembly, transmission overhaul, turbocharger servicing, clutch replacement, brake caliper rebuild, suspension component replacement.
Troubleshooting:
Diagnostic procedures for common issues, fault code interpretation, electrical system troubleshooting.
Installation Replacement:
Component replacement for nearly all systems, including engine, transmission, turbochargers, suspension, brakes, and electrical modules.
Diagnostic Capability:
Advanced diagnostics including specific test procedures, sensor data analysis, and troubleshooting trees.
Rebuild Specifications:
Detailed specifications for engine and transmission component clearances, torque values, and assembly procedures for full rebuilds.
Wiring Diagrams:
Comprehensive, schematics for all electrical systems, including power distribution, signal paths, and component locations.
Configuration:
2.7L (2671 cc) V6 Bi-Turbocharged
Bore X Stroke:
81.0 mm x 86.4 mm
Horsepower:
250 hp @ 5800-6400 rpm
Torque:
258 lb-ft (350 Nm) @ 1850-3600 rpm
Fuel Delivery:
Multi-Point Fuel Injection (MPI) with sequential firing.
Turbochargers:
Dual K03 turbochargers, air-to-air intercoolers.
Type:
DOHC (Double Overhead Camshafts), 5 valves per cylinder.
Transmission Type:
6-Speed Manual Transmission
Transmission Type:
5-Speed Tiptronic Automatic Transmission (Note: This manual likely focuses on the manual as it's the 'S4' performance variant, but the platform may have had auto options.)
Drivetrain:
Audi Quattro permanent all-wheel drive with Torsen center differential.
Manual Transmission Fluid:
G 005 000 (or equivalent API GL-4/GL-5, SAE 75W-90)
NHTSA Front Impact:
Likely 4-star (based on typical ratings for vehicles of this era and class)
Traction Control:
ASR (Anti-Slip Regulation)
Stability Control:
ESP (Electronic Stabilization Program) likely standard
Airbags:
Frontal airbags, side airbags (likely standard).
Seatbelts:
3-point inertia-reel seatbelts with pre-tensioners.
Oil Change Interval:
Typically 5,000-7,500 miles (8,000-12,000 km) or 12 months, whichever comes first (consult manual for precise OEM recommendation).
Timing Belt Interval:
Crucial interval. The 2.7T engine uses a timing belt. OEM recommendation typically around 60,000-70,000 miles (96,000-112,000 km) or 5 years. Failure is catastrophic. Manual will detail replacement procedure and related components (tensioners, idlers, water pump).
Engine Oil Type:
Synthetic 5W-40 or 0W-40 (API SN/SM/SL or ACEA A3/B4)
Coolant Type:
G 12/G 12+ Pink Antifreeze/Coolant (Ethylene Glycol based)
Power Steering Fluid:
G 002 000 (or Pentosin CHF 11S)
Coil Packs Failures:
Known for premature failure of ignition coil packs, leading to misfires.
Pcv System Clogging:
Positive Crankcase Ventilation (PCV) system can clog, leading to oil leaks and rough running.
Turbocharger Failures:
While robust, can fail due to lack of proper maintenance (oil changes, turbo cool-down). Manual will cover inspection and replacement.
Oil Leaks:
Common oil leaks from valve cover gaskets, oil cooler seals, and oil pressure sensors.
Sus Bushings Wear:
Wear in suspension control arm bushings and other rubber components is common due to age and performance driving.
Audi Performance:
Audi's long-standing reputation for Quattro all-wheel drive and performance-oriented models dating back to the original Quattro rally car.
S4 B5 Generation:
The B5 S4 represented a significant step up in performance for the A4 chassis, introducing the legendary 2.7T twin-turbo V6 engine and a more aggressive stance.
Production Years B5 S4:
1997-2001 (for the B5 platform, with the 2.7T engine introduced later in the run)
Manufacturing Location:
Ingolstadt, Germany
