Audi Audi S4 1991-1994 2.2L Engine Specifications
Detailed technical specifications and documentation for the 2.2L inline-5 turbocharged engine in the 1991-1994 Audi S4. Covers engine performance, maintenance, and repair guidelines.
Overview Specifications
Comprehensive description of the 2.2l-engine specifications for the 1991-1994 Audi S4, including key features, measurements, and technical details
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Use the search function to locate specific 2.2l-engine specifications by entering keywords such as 'torque', 'compression ratio', or 'fuel system'.
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Key Specifications
Displacement
2226 cc
Max Power
227 hp @ 5900 rpm
Max Torque
258 lb-ft @ 1950 rpm
Compression Ratio
9.3:1
Turbo Boost Pressure
0.8 bar
Available Specifications
Engine Design and Configuration
Details about the design, layout, and configuration of the 2.2l-engine
Engine Design and Configuration
Details about the design, layout, and configuration of the 2.2l-engine
Engine Type and Layout
- Inline 5-cylinder configuration
- Turbocharged and intercooled
- DOHC (Dual Overhead Camshaft) design
- Cast iron block with aluminum cylinder head
- 10-valve system (2 valves per cylinder)
Displacement and Dimensions
- Displacement: 2226 cc (2.2 liters)
- Bore: 81.0 mm
- Stroke: 86.4 mm
- Compression ratio: 9.3:1
- Engine weight: 165 kg (approx.)
Note: The engine's compact design allows for efficient packaging in the Audi S4 chassis.
Performance Specifications
Technical details about the engine's performance capabilities
Performance Specifications
Technical details about the engine's performance capabilities
Power and Torque Output
- Maximum power: 227 hp (169 kW) at 5900 rpm
- Maximum torque: 258 lb-ft (350 Nm) at 1950 rpm
- Turbo boost pressure: 0.8 bar (11.6 psi)
- Redline: 6500 rpm
- 0-60 mph acceleration: 6.3 seconds (approx.)
Fuel System and Efficiency
- Fuel delivery: Bosch KE-Jetronic mechanical fuel injection
- Fuel type: Premium unleaded (91 RON or higher)
- Fuel consumption: 12.5 L/100 km (city), 8.5 L/100 km (highway)
- Emissions compliance: Meets Euro 1 standards
- Throttle body diameter: 60 mm
Note: The KE-Jetronic system provides precise fuel metering for optimal performance and efficiency.
Cooling and Lubrication
Details about the engine's cooling and lubrication systems
Cooling and Lubrication
Details about the engine's cooling and lubrication systems
Cooling System
- Liquid-cooled with a front-mounted radiator
- Coolant capacity: 9.5 liters
- Thermostat opening temperature: 87°C (189°F)
- Electric cooling fan with two-speed operation
- Coolant flow rate: 120 liters per minute (approx.)
Lubrication System
- Wet sump oil system
- Oil capacity: 5.5 liters (with filter)
- Oil pressure: 3.5-4.5 bar at 2000 rpm
- Oil pump type: Gear-driven
- Recommended oil grade: 10W-40 synthetic
Note: Regular oil changes are critical to maintaining turbocharger longevity.
Turbocharger and Exhaust System
Technical details about the turbocharger and exhaust components
Turbocharger and Exhaust System
Technical details about the turbocharger and exhaust components
Turbocharger Specifications
- Turbo model: K24-7000
- Compressor wheel diameter: 46 mm
- Turbine wheel diameter: 50 mm
- Maximum turbo speed: 150,000 rpm
- Wastegate pressure: 0.8 bar (11.6 psi)
Exhaust System
- Exhaust manifold material: Cast iron
- Catalytic converter: 3-way catalytic converter
- Exhaust pipe diameter: 60 mm
- Muffler type: Dual-chamber design
- Exhaust backpressure: <0.3 bar at full load
Note: The turbocharger is water-cooled for improved durability under high loads.
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Engine Specifications
General
- Engine Code
- AAN
- Displacement
- 2.2 liters (2226 cc)
- Configuration
- Inline 5-cylinder
- Aspiration
- Turbocharged
- Fuel System
- Electronic Fuel Injection (EFI)
- Manufacturer
- Audi AG
- Production Years
- 1991-1994
Performance
- Power Output
- 227 hp @ 5900 rpm
- Torque
- 258 lb-ft @ 1950 rpm
- Compression Ratio
- 9.3:1
- Redline
- 7000 rpm
- Boost Pressure
- 0.8 bar (11.6 psi)
Dimensions
- Bore
- 81.0 mm
- Stroke
- 86.4 mm
- Cylinder Spacing
- 88.0 mm
- Deck Height
- 220.0 mm
- Engine Weight
- 180 kg (dry)
Cooling System
- Coolant Capacity
- 8.5 liters
- Thermostat Opening Temperature
- 87°C
- Radiator Cap Pressure
- 1.4 bar
- Coolant Type
- G12 (pink)
- Water Pump Part Number
- 034121004A
Lubrication System
- Oil Capacity
- 5.5 liters (with filter)
- Oil Type
- 5W-40 (fully synthetic)
- Oil Pressure
- 2.0-4.5 bar @ 2000 rpm
- Oil Filter Part Number
- 068115561B
- Oil Change interval
- 10,000 miles or 12 months
Ignition System
- Ignition Type
- Distributorless (wasted spark)
- Spark Plug Gap
- 0.7-0.8 mm
- Spark Plug Torque
- 25 Nm
- Spark Plug Part Number
- BOSCH FR7LDC+
- Ignition Coil Part Number
- 034905105B
Fuel System
- Fuel injector Flow Rate
- 315 cc/min
- Fuel Pressure
- 3.8 bar
- Fuel Filter Part Number
- 8A0201511A
- Fuel Pump Part Number
- 8A0906087C
- Fuel Tank Capacity
- 70 liters
Turbocharger
- Turbo Model
- KKK K24
- Compressor Wheel Diameter
- 46 mm
- Turbine Wheel Diameter
- 49 mm
- Wastegate Actuation Pressure
- 0.8 bar
- Turbo Oil Feed Line Part Number
- 034145757A
Valvetrain
- Valve Configuration
- DOHC, 20 valves
- intake Valve Diameter
- 34.0 mm
- Exhaust Valve Diameter
- 30.0 mm
- Valve Clearance
- Hydraulic lifters (self-adjusting)
- Camshaft Part Number
- 034109101C
Maintenance
- Timing Belt Interval
- 60,000 miles or 5 years
- Timing Belt Part Number
- 034109119E
- Tensioner Part Number
- 034109243B
- Idler Pulley Part Number
- 034109244A
- Serpentine Belt Part Number
- 034903137E
Diagnostics
- Obd Standard
- OBD-I (Audi-specific)
- Fault Code Reading
- Via blink code or VAG-COM
- Common Fault Codes
-
- 00513 - Engine Speed Sensor (G28)
- 00515 - Camshaft Position Sensor (G40)
- 00532 - Supply Voltage (B+)
- Diagnostic Connector Location
- Under dashboard, driver's side
Service Information Service
Detailed service requirements and schedules for the 2.2L engine
- Oil and filter change
- Inspect timing belt for wear
- Check coolant level and condition
- Inspect spark plugs
Use only Audi-approved fluids and parts
- Replace timing belt
- Replace tensioner and idler pulleys
- Inspect water pump
- Replace serpentine belt
Timing belt failure can cause severe engine damage
- Replace fuel filter
- Inspect turbocharger for wear
- Check valve clearance (hydraulic lifters)
- Replace coolant
Perform a full engine diagnostic scan
Common Questions
Find answers to common questions about torque specifications
Q1 What is the horsepower and torque output of the 2.2l-engine in the 1991-1994 Audi S4?
What is the horsepower and torque output of the 2.2l-engine in the 1991-1994 Audi S4?
The 2.2l inline-5 turbocharged engine in the 1991-1994 Audi S4 produces 227 horsepower at 5900 rpm and 258 lb-ft of torque at 1950 rpm. This engine is known for its robust performance and smooth power delivery.
Q2 What is the recommended oil type and capacity for the 2.2l-engine?
What is the recommended oil type and capacity for the 2.2l-engine?
The recommended oil type for the 2.2l-engine is a high-quality synthetic 5W-40 or 10W-40. The oil capacity is approximately 5.5 liters (5.8 quarts) including the oil filter. Always refer to the owner's manual for specific recommendations based on driving conditions.
Q3 What is the compression ratio of the 2.2l-engine?
What is the compression ratio of the 2.2l-engine?
The compression ratio of the 2.2l-engine is 9.3:1. This ratio is optimized for the turbocharged setup, balancing performance and reliability.
Q4 What is the recommended service interval for the timing belt on the 2.2l-engine?
What is the recommended service interval for the timing belt on the 2.2l-engine?
The timing belt on the 2.2l-engine should be replaced every 60,000 miles or 5 years, whichever comes first. Failure to replace the timing belt on time can lead to catastrophic engine damage.
Q5 What type of fuel injection system does the 2.2l-engine use?
What type of fuel injection system does the 2.2l-engine use?
The 2.2l-engine uses a Bosch Motronic fuel injection system. This system is known for its precision and reliability, ensuring optimal fuel delivery and engine performance.
Q6 What is the firing order of the 2.2l-engine?
What is the firing order of the 2.2l-engine?
The firing order of the 2.2l inline-5 engine is 1-2-4-5-3. This firing order is critical for proper engine operation and should be followed during any ignition system service.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Audi S4 2.2l Engine Service Manual
Coming SoonOfficial service manual for the 2.2l-engine, covering detailed maintenance and repair procedures.
Timing Belt Replacement Guide
Coming SoonStep-by-step guide for replacing the timing belt on the 2.2l-engine, including torque specifications and safety precautions.
Bosch Motronic Fuel Injection System Overview
Coming SoonTechnical overview of the Bosch Motronic fuel injection system used in the 2.2l-engine, including troubleshooting tips.
Audi S4 2.2l Engine Performance Upgrades
Coming SoonGuide to performance upgrades for the 2.2l-engine, including turbocharger modifications and ECU tuning.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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