Choose a part or category for your 2009 Audi S4 (View All)
HVAC
A/c Compressor
A/c Condenser
A/c Evaporator Core
A/c Expansion Valve
A/c In-line Filter Kit
A/c Orifice Tube
A/c Receiver Drier
A/c Receiver Drier / Desiccant Element Kit
A/c Service Valve Cap
A/c System O-ring And Gasket Kit
A/c System Seal Kit
A/c System Valve Core
A/c System Valve Core And Cap Kit
Ambient Air Temperature Sensor
Cabin Air Filter
Hvac Blower Motor
Hvac Heater Core
Hvac Heater Hose
Hvac Heater Hose Connector
Hvac Pressure Switch
Hvac Pressure Transducer
Hvac Temperature Sensor
BRAKE
Abs Relay
Abs Wheel Speed Sensor
Brake Bleeder Screw
Brake Bleeder Screw Cap
Brake Hydraulic Hose
Brake Hydraulic Hose Lock Clip
Brake Master Cylinder
Brake Master Cylinder Reservoir Cap
Brake Pressure Relay
Disc Brake Caliper Bolt Kit
Disc Brake Caliper Bushing
Disc Brake Caliper Pin
Disc Brake Caliper Pin Boot Kit
Disc Brake Caliper Pin Kit
Disc Brake Caliper Repair Kit
Disc Brake Hardware Kit
Disc Brake Low Frequency Noise Damper
Disc Brake Pad Set
Disc Brake Pad Wear Sensor
Disc Brake Rotor
BELTS AND COOLING
Accessory Drive Belt
Engine Coolant Hose C-clip Retainer
Engine Coolant Hose Flange Retaining Spring
Engine Coolant Outlet Flange
Engine Coolant Pipe Adapter
Engine Coolant Reservoir Cap
Engine Coolant Temperature Sensor
Engine Coolant Temperature Sensor Connector
Engine Coolant Temperature Switch
Engine Coolant Thermostat
Engine Coolant Water Outlet
Engine Cooling Fan Switch Seal
Engine Oil Cooler O-ring
Engine Water Pump
Engine Water Pump Relay
Radiator
Radiator Coolant Hose
Radiator Coolant Hose Connector
Serpentine Belt
ELECTRICAL, LIGHTING AND BODY
Accessory Power Relay
Back Up Light Bulb
Brake Light
Brake Light Bulb
Brake Light Switch
Diagnostic Test Connector
Door Window Switch
Fog / Driving Light Wiring Harness
Fog Light Assembly
Fog Light Bulb
Fog Light Connector
Glove Box Light Bulb
Headlight Assembly
Headlight Bulb
Headlight Housing
High Intensity Discharge (hid) Headlight Control Module
High Intensity Discharge (hid) Lighting Ballast
Horn Relay
Interior Door Light Bulb
License Plate Light Bulb
Map Light Bulb
Neutral Safety Switch
Parking Light Bulb
Side Marker Light Bulb
Stepwell Light Bulb
Tail Light Bulb
Trunk Light Bulb
Trunk Or Cargo Area Light
Turn Signal Light Bulb
EMISSION CONTROL
Air / Fuel Ratio Sensor
Engine Crankcase Vent Valve
Fuel Vapor Leak Detection Pump Connector
Ignition Knock (detonation) Sensor
Mass Air Flow Sensor
Mass Air Flow Sensor Assembly
Mass Air Flow Sensor Connector
Oxygen Sensor
Secondary Air Injection Check Valve
Secondary Air Injection Pump Check Valve
Secondary Air Injection Pump Relay Connector
Vacuum Control Valve
Vapor Canister Purge Solenoid
Vapor Canister Purge Valve
TRANSMISSION
Automatic Transmission Output Shaft Repair Sleeve
Automatic Transmission Solenoid Kit
Automatic Transmission Torque Converter Seal
Clutch Master Cylinder
Manual Transmission Differential Bearing
Manual Transmission Differential Race
Manual Transmission Output Shaft Seal
Transmission Clutch Kit
Transmission Filter Kit
IGNITION
Direct Ignition Coil
Direct Ignition Coil And Boot Assembly
Engine Camshaft Position Sensor
Engine Camshaft Position Sensor Connector
Engine Crankshaft Position Sensor
Engine Crankshaft Position Sensor Connector
Ignition Coil
Ignition Coil Connector
Ignition Coil Wiring Harness Repair Kit
Ignition Switch
Spark Plug
AIR AND FUEL DELIVERY
Engine Air Filter
Fuel Filter
Fuel Filter And Pressure Regulator Assembly
Fuel Injection Pressure Regulator
Fuel Injector Connector
Fuel Injector O-ring Kit
Fuel Injector Seal Kit
Fuel Pump Gasket
Fuel Pump Module Assembly
Fuel Pump O-ring
Fuel Pump Relay
Fuel Pump Seal
Fuel Tank Cap
Fuel Tank Cleaning Kit
Fuel Tank Sending Unit
Fuel Tank Sending Unit O-ring
ENGINE
Engine Crankshaft Seal
Engine Crankshaft Sealing Flange Gasket
Engine Cylinder Head Bolt Set
Engine Cylinder Head Gasket
Engine Intake Manifold Gasket
Engine Intake Manifold Gasket Set
Engine Mount
Engine Oil Dipstick Tube O-ring
Engine Oil Filler Cap
Engine Oil Filter
Engine Oil Filter Element
Engine Oil Level Sensor
Engine Oil Level Sensor O-ring
Engine Oil Pan Gasket
Engine Oil Pressure Sender
Engine Oil Pressure Sensor
Engine Oil Pressure Switch
Engine Oil Sump Sealing Compound
Engine Timing Cover Seal
Engine Torque Damper Bushing
Engine Valve Cover Gasket
Engine Valve Stem Oil Seal Set
SUSPENSION
Jounce Bumper
Lateral Arm
Suspension Ball Joint
Suspension Control Arm
Suspension Control Arm And Ball Joint Assembly
Suspension Control Arm Bushing
Suspension Shock Absorber Mount
Suspension Stabilizer Bar Bushing
Suspension Stabilizer Bar Link
Suspension Stabilizer Bar Link Kit
Suspension Strut
Suspension Strut Bumper
TIRE AND WHEEL
Tire Pressure Monitoring System (tpms) Programmable Sensor
Tire Pressure Monitoring System (tpms) Programmable Sensor Valve Kit
Tire Pressure Monitoring System (tpms) Sensor
Tire Pressure Monitoring System (tpms) Sensor Service Kit
Tire Pressure Monitoring System (tpms) Valve Kit
Tire Valve Stem Core
Wheel Lug Bolt
Wheel Lug Bolt Cap