Audi Avant RS2 Workshop Manual

🏷️ Basic Information

Make:

Audi

Model:

Avant RS2

Generation:

B4 (Type 8C)

Production Years:

1994 - 1995

Chassis Code:

Type 8C

Engine Code Family:

VW EA825 (5-cylinder turbo)

Engine Code:

ADU

👋 Introduction

Market Segment:

High-performance luxury estate / wagon

Target Audience:

Enthusiast drivers and technicians seeking a practical family car with supercar-level performance

Unique Selling Proposition:

A unique collaboration between Audi and Porsche, combining Audi's robust wagon platform with Porsche's legendary performance engineering.

Key Competitors:

BMW M5 Touring (E34), Mercedes-Benz E500 Estate (W124), Volvo 850R

Competitive Advantage:

Porsche-engineered powertrain, brakes, and suspension combined with Audi Quattro all-wheel-drive, a combination no rival offered

Performance Focus:

Emphasizes the high-performance capabilities derived from its turbocharged engine, advanced drivetrain, and sports-tuned suspension.

Practicality:

Combines supercar-level performance with the practicality of a large estate car, offering ample cargo space and passenger comfort.

📋 Manual Details

Primary Coverage:

Technical Data, Self Diagnosis, Engine Removal/Installation, Crankshaft, Cylinder Head, Valve Gear, Lubrication System, Cooling System, Fuel System, Ignition System, Exhaust System, Clutch, Gearbox, Drive Shafts, Axles, Steering System, Suspension, Brakes, Electrical System, Bodywork, Interior, Wheels and Tires, Climate Control

Estimated Page Count:

800+

Manual Type:

Workshop Manual / Service Manual / Repair Manual

Language:

English

Format:

PDF

File Format:

PDF (Searchable text and high-resolution diagrams)

Delivery:

Instant digital download

Print Quality:

Designed for clear printing of text and diagrams, preserving original manual quality.

Binding Type:

N/A - digital format, printable on demand

📖 Manual Coverage

Engine:

Comprehensive coverage of the 2.2L turbocharged 5-cylinder engine, including disassembly, assembly, timing belt, turbocharger, intercooler, fuel injection, ignition, lubrication, and cooling systems.

Drivetrain:

Detailed procedures for the 6-speed manual transmission (01E), Quattro permanent all-wheel-drive system, differentials, driveshafts, and CV joints.

Chassis:

In-depth coverage of the suspension (front MacPherson struts, rear independent suspension), steering system (power steering), and braking system (ABS, ventilated discs).

Electrical:

Extensive wiring diagrams, fuse/relay locations, diagnostic procedures for engine control (ECU), lighting, instrumentation, power windows, central locking, and climate control.

Fuel and Ignition Systems:

Bosch Motronic M2.3.2 fuel injection system, ignition components, exhaust system servicing

Climate Control:

Heating, ventilation, and air conditioning system diagnosis and repair

Brakes:

ABS diagnostics, ventilated disc servicing, brake caliper overhaul

Body and Interior:

Bodywork, interior trim, wheels and tires procedures

Diagnostic Procedures:

Troubleshooting guides, fault code interpretation, self-diagnosis functions, component testing methods.

Repair Procedures:

Step-by-step instructions for engine rebuilds, transmission overhauls, suspension component replacement, brake caliper servicing, and electrical component repair.

Maintenance Procedures:

Oil change intervals, filter replacements, spark plug service, fluid level checks and changes, belt tensioning.

Installation Procedures:

Correct installation sequences for major components like the engine, transmission, suspension arms, and body panels.

Engine Removal and Installation:

Complete procedures for engine and gearbox removal and refitting

Timing Belt Service:

Timing belt replacement and valve gear adjustment procedures

Cylinder Head Service:

Cylinder head removal, inspection, and reconditioning

Depth Of Coverage:

Comprehensive from basic maintenance to full engine and transmission rebuilds, including torque specifications, clearances, and diagnostic flowcharts.

Detail Level:

Provides detailed exploded views, part diagrams, and specific tool requirements for complex procedures.

Wiring Diagrams:

Full electrical system wiring diagrams included

Torque Specifications:

Factory torque values and tolerances supplied for all major fasteners and assemblies

Special Tools:

Specific tool requirements identified for complex procedures

Part Diagrams:

Detailed exploded views and part diagrams throughout the manual

Fluid Specifications:

Factory-specified lubricants and fluids for all systems

Part Numbers:

N/A - exploded views and diagrams provided; verify part numbers with a dealer parts catalog for ordering

📊 Manual Specifications

File Format:

PDF (searchable, bookmarked, zoomable)

Compatibility:

Windows, macOS, Linux, iOS, and Android — any device with a PDF reader

Requirements:

A PDF reader application (e.g. Adobe Acrobat Reader, free)

Searchability:

Fully text searchable for fast lookup of any topic

Print Quality:

High-resolution digital pages, printable at full clarity

Binding Type:

N/A — digital download, no physical binding

Paper Type:

N/A — digital download, no physical paper

⚙️ Engine Specifications

Engine Type:

Inline-5, turbocharged and intercooled

Displacement:

2226 cc (2.2 Liters)

Bore X Stroke:

81.0 mm x 86.4 mm

Compression Ratio:

8.5:1

Engine Code:

ADU

Horsepower:

315 hp @ 6500 rpm

Torque:

317 lb-ft (430 Nm) @ 4500 rpm

Redline:

7000 rpm

Fuel Injection:

Bosch Motronic M2.3.2 electronic fuel injection

Fuel Type:

Unleaded gasoline, minimum 91 octane (RON+MON)/2 (e.g., 91 AKI in North America)

Turbocharger:

Garrett T3/T04E (modified) with KKK K26 wastegate

Intercooler:

Air-to-air, front-mounted

🔧 Transmission

Transmission Type:

6-speed manual

Transmission Model:

Audi 01E

Optional Transmission:

None - the RS2 was offered exclusively with the 6-speed manual gearbox

Drivetrain Type:

Quattro permanent all-wheel-drive

Differential Type:

Torsen center differential, open front and rear differentials (manual locking rear diff was available on some specific markets/versions)

Clutch Type:

Hydraulically operated, single dry plate clutch

📐 Dimensions

Length:

4750 mm (187.0 in)

Width:

1775 mm (69.9 in)

Height:

1420 mm (55.9 in)

Wheelbase:

2760 mm (108.7 in)

Front Track:

1500 mm (59.1 in)

Rear Track:

1488 mm (58.6 in)

Ground Clearance:

Approx. 120-130 mm (4.7-5.1 in)

Cargo Volume:

Approx. 550 - 1600 Liters (with rear seats folded)

Curb Weight:

Approx. 1650 kg (3638 lbs)

Gross Vehicle Weight:

Approx. 2220 kg (4894 lbs)

Towing Capacity:

Not officially specified; typically around 1500 kg (3307 lbs) for similar Audi models

🛡️ Safety Features

Crash Test Ratings:

No official NCAP ratings from the era. Vehicles were built to robust standards of the time.

ABS:

Standard Bosch ABS (Anti-lock Braking System)

Traction Control:

Not standard, but often equipped with advanced Quattro AWD as a primary traction aid.

Braking System:

Ventilated discs on all four corners, Porsche-developed braking hardware

Airbags:

Driver airbag (standard), passenger airbag (optional/market dependent)

Seatbelts:

3-point inertia-reel seatbelts with front pre-tensioners.

Body Structure:

Reinforced chassis and body structure for enhanced occupant protection.

💡 Technology Features

Head Unit:

Original Audi Concert/Chorus or optional Bose sound system. Aftermarket upgrades are common.

Speaker System:

Standard speaker setup or optional Bose premium sound system.

Cruise Control:

Standard electronic cruise control.

Instrumentation:

Sport-oriented digital and analog gauges, including boost pressure gauge.

Connectivity Features:

Limited by era. Primarily focused on audio system connectivity. Bluetooth or modern connectivity requires aftermarket solutions.

🔧 Maintenance

Oil Change Interval:

Typically every 15,000 km (9,300 miles) or 12 months, whichever comes first. (Refer to manual for precise Audi recommendations).

Timing Belt Replacement:

Recommended every 90,000 km (56,000 miles) or 5 years. Crucial due to interference engine design.

Engine Oil Type:

Synthetic SAE 5W-40, API SJ / ACEA A3/B3 (e.g., Castrol GTX Magnatec 5W-40 or equivalent).

Engine Oil Capacity:

Approx. 5.5 Liters (5.8 US Quarts) with filter change.

Coolant Type:

G12 (Pink) or G12+ (Purple) Ethylene Glycol Antifreeze (e.g., Audi G12 EVO).

Transmission Fluid Type:

API GL-4 or GL-5 SAE 75W-90 Synthetic Gear Oil (e.g., Liqui Moly Getriebeoel (GL4) SAE 75W-90).

Differential Fluid Type:

API GL-5 SAE 75W-90 Synthetic Gear Oil (for rear differential).

Brake Fluid Type:

DOT 4 (e.g., Bosch DOT 4 or Pentosin DOT 4 LV).

Oil Leaks:

Common leaks from valve cover gaskets, oil pan gaskets, and turbocharger oil lines due to age and heat.

Suspension Wear:

Worn control arm bushings, ball joints, and shock absorbers are common due to the performance nature and age.

Electrical Gremlins:

Aging wiring harnesses, sensor failures (e.g., MAF, O2 sensors), and intermittent issues with power accessories are not uncommon.

Cooling System:

Potential for radiator leaks, coolant hose deterioration, and thermostat issues.

Turbocharger Wear:

Wear on turbo seals leading to oil consumption and smoke, or failing wastegate actuators. Regular oil changes and cool-down periods are critical.

Interior Wear:

Wear on leather seats, headliner sagging, and dashboard trim degradation.

📚 Vehicle History

Manufacturer:

Audi AG, in collaboration with Porsche AG

Audi Heritage:

Audi's history in rallying and motorsport, particularly with the Ur-Quattro, heavily influenced the RS2's development.

Genesis:

Developed as a joint project between Audi AG and Porsche AG. Audi provided the base Audi 80 Avant (Type 8C), and Porsche engineered the powertrain, suspension, brakes, and exterior enhancements.

Unique Collaboration:

The RS2 Avant is a rare example of a collaboration between Audi and Porsche, with Porsche assembling the vehicles at their Rossle-Bau plant in Zuffenhausen.

Legacy:

Launched the Audi RS performance line, establishing the high-performance estate template followed by later RS models.

Production Years:

1994 - 1995

Production Volume:

Approximately 2,908 units produced.

Manufacturing Location:

Porsche's plant in Zuffenhausen, Germany

🏆 Awards & Recognition

Motorsport Heritage:

While not a direct competitor in official motorsport series of its time, its DNA is deeply rooted in Audi's rallying successes.

Critical Acclaim:

Widely praised by automotive journalists upon release as a groundbreaking blend of performance and practicality.

Cult Status:

Has achieved iconic status and a dedicated cult following among enthusiasts for its unique heritage and performance.