A.I.R. System for 2009 Audi S4
No.
Part # / Description / Price
Price
1
Secondary Air Injection Pump 
Audi
Audi Description: Cabriolet S4. 4.2L, A4/S4. 4.2L, RS4.
An emissions component, that is part of the secondary air injection system, which is responsible for pumping clean air into the vehicle's exhaust stream to promote a cleaner and more complete burn before the fumes exit the tailpipe.
An emissions component, that is part of the secondary air injection system, which is responsible for pumping clean air into the vehicle's exhaust stream to promote a cleaner and more complete burn before the fumes exit the tailpipe.
2
Secondary Air Injection Pump Bracket Audi
Audi Description: 4.2L A4/S4.
A bracket for a secondary air injection pump.
A bracket for a secondary air injection pump.
3
Secondary Air Injection Pump Hose Audi
Audi Description: 4.2L, A4/S4, #1. To air cleaner. 4.2L, RS4, #1.
Secondary Air Injection Pump Hose.
Secondary Air Injection Pump Hose.
MSRP $328.33
$250.19
MSRP $328.33
$250.19
4
Secondary Air Injection Pump Hose Audi
Audi Description: To egr pipe. Cabbriolet S4. To kombi valve. 4.2L. #2.
Secondary Air Injection Pump Hose.
Secondary Air Injection Pump Hose.
5
Secondary Air Injection Pump Hose Audi
Audi Description: Cabriolet S4. To kombi valve. 4.2L. #3.
Secondary Air Injection Pump Hose.
Secondary Air Injection Pump Hose.
6
Engine Coolant Pipe Audi
Audi Description: 4.2L, supply, A4/S4. Cabriolet S4. 4.2L feed. Water pipe.
Pipe that is part of the engine cooling system.
Pipe that is part of the engine cooling system.
8
Connector Pipe Valve Assembly Audi
Audi Positions: Left
Description: 1998-01, 1.8 & 2.8L. 2.8L, combi. 1996-97, 1.8 & 2.8L. 2004-06, a.i.r. Pump & compmnents. S4. Both. 4.2L, 2005-06. 4.2L, combination.
10
Exhaust Gas Recirculation (EGR) Valve Spacer Plate Audi
Audi Positions: Right
Description: 4.2L, A4/S4. 4.2L, 2005-06, from vin 4f6035001.
Exhaust Gas Recirculation (EGR) Valve Spacer Plate.
Exhaust Gas Recirculation (EGR) Valve Spacer Plate.
11
Secondary Air Injection Control Valve Adapter Audi
Audi Positions: Left
Description: 4.2L, A4/S4. 4.2L, 2005-06, to vin 4f6035000.
13
Secondary Air Injection Control Valve Gasket Audi
Audi Positions: Left
Description: 4.2L, A4/S4. 4.2L, 2005-06.
Secondary Air Injection Control Valve Gasket.
Secondary Air Injection Control Valve Gasket.
MSRP $17.94
$12.15
MSRP $17.94
$12.15
18
Connector Hose Clamp Audi
Audi Description: Gas. 3.6L. 3.2L. 3.0L. Diesel. 4.2L, A4/S4. 4.2L, 2005-06. 2004-06, a.i.r. Pump & components. Vacuum hoses and brake servo.
MSRP $0.54
$0.37
MSRP $0.54
$0.37
19
Secondary Air Injection Solenoid Audi
Audi Description: A4, S4, RS4. Rear. SQ5. Inner. A.i.r. Injection, 5.2L. Left. Cabriolet S4. #2. 4.2L, A4/S4.
Secondary Air Injection Solenoid.
Secondary Air Injection Solenoid.
MSRP $183.32
$139.69
MSRP $183.32
$139.69
20
Vapor Canister Audi
Audi Description: A6, S6. Cabriolet A4. All. 4.2L, A4/S4. From Chassis/VIN 8H-6-009 201.
Vapor Canister.
Vapor Canister.
MSRP $809.23
$662.76
MSRP $809.23
$662.76
21
Evaporative Emissions System Lines Audi
Audi Description: Pressure pipe. Pressure line. 3.0L. 2.0L. 1.8L. 3.2L. 4.2L, A4/S4.
Evaporative Emissions System Lines.
Evaporative Emissions System Lines.
MSRP $317.66
$242.05
MSRP $317.66
$242.05
23
Evaporative Emissions System Leak Detection Pump Audi
Audi Description: Cabriolet A4. 3.0L. 2.0L. 3.2L. 1.8L. 4.2L, A4/S4. Cabriolet S4. 4.2L, RS4.
24
Evaporative Emissions System Leak Detection Pump Bracket Audi
Audi Description: Leak detect pump,bracket. 2.0L. 3.0L. 1.8L. 3.2L. 4.2L, A4/S4. 4.2L, RS4.
A component to which the Evaporative Emissions System Leak Detection Unit or related component is mounted to.
A component to which the Evaporative Emissions System Leak Detection Unit or related component is mounted to.
MSRP $43.18
$28.80
MSRP $43.18
$28.80
26
Leak Detect Pump Buffer Audi
Audi Notes: PARTS: Part included with leak detection pump.
MSRP $10.58
$8.60
MSRP $10.58
$8.60
28
Evaporative Emissions System Line Adapter Audi
Audi Description: 2.0 & 2.5L. 2.0L, 2009-2012. 2.0L, 2010-12. 4.2L, fuel tank area. 4.2L, 2007-11. 4.2L, A4/S4. 3.0L, canister & components, 2010-12. 3.0L, 2010-2012. 3.2L, fuel tank area. 4.2L, 2005-06.
MSRP $5.20
$3.52
MSRP $5.20
$3.52
29
Vent Hose Audi
Audi Notes: PARTS: Part listed is for 5 meter roll. Cut as required.
Description: 2.0 & 2.5L. Without Quattro. 3.0L. Hose. 4.2L, A4/S4. 4.2L, 2005-06. 3.2L, fuel tank area.
MSRP $98.32
$74.39
MSRP $98.32
$74.39
30
MSRP $119.99
$90.78
31
Filter Hose Audi
Audi Description: 3.2L. Filter hose. 3.0L. 1.8L. 2.0L. Connector hose. 4.2L, 2005-06. 4.2L, RS4.
MSRP $57.32
$45.88
MSRP $57.32
$45.88
33
Secondary Air Injection Pump Hose Audi
Audi Description: A4 Cabriolet. Pressure hose. 3.0L. 2.0L. 3.2L. 4.2L, A4/S4. 1.8L.
Secondary Air Injection Pump Hose.
Secondary Air Injection Pump Hose.
MSRP $141.67
$107.19
MSRP $141.67
$107.19
35
MSRP $56.48
$45.21
36
Vacuum Reservoir Bracket Audi
Audi Description: 4.2L, A4/S4. 4.2L, RS4.
A component to which the Emission System Vacuum Reservoir or related component is mounted to.
A component to which the Emission System Vacuum Reservoir or related component is mounted to.
37
MSRP $413.33
$314.96
38
MSRP $374.98
$285.74
No.
Part # / Description / Price
Price
2
Water Hose Assembly Connector Audi
Audi Notes: PARTS: Part included with water hose assembly.
Description: 4.2L, supply, A4/S4. 4.2L feed.
5
Engine Coolant Pipe Audi
Audi Description: 4.2L, supply, A4/S4. Cabriolet S4. 4.2L feed. Water pipe.
Pipe that is part of the engine cooling system.
Pipe that is part of the engine cooling system.
6
Engine Coolant Crossover Pipe Audi
Audi Description: 4.2L, supply, A4/S4. 4.2L, feed, 2005-06.
A pipe that balances coolant between cylinder banks.
A pipe that balances coolant between cylinder banks.
7
Water Manifold Gasket Audi
Audi Description: 4.2L, supply, A4/S4. 4.2L, feed, 2005-06. From Chassis/VIN 4B-4-070 001. 32mm.
7
Water Pump Assembly Seal Audi
Audi Description: 4.0L, primary. 4.0L, main. With RS7, main. Main, 4.2L. Large. 4.2L, primary. 28 x 3.5mm. 4.2L, return, 2005-06.
MSRP $7.18
$4.86
MSRP $7.18
$4.86
10
Engine Coolant Overflow Hose Audi
Audi Description: 4.2L, feed. 4.2L, supply, A4/S4.
A coolant hose that feeds coolant back to the overflow or recovery bottle in a closed loop cooling system.
A coolant hose that feeds coolant back to the overflow or recovery bottle in a closed loop cooling system.
11
Hose & Tube Assembly Tube Audi
Audi Notes: PARTS: Part included with hose & tube assembly.
Description: 4.2L, feed. 4.2L, supply, A4/S4. 4.2L, main, #6.
12
Hose & Tube Assembly Clamp Audi
Audi Notes: PARTS: Part included with hose & tube assembly.
MSRP $5.17
$3.51
MSRP $5.17
$3.51
13
MSRP $3.17
$2.15
14
T-Piece Audi
Audi Notes: PARTS: Part included with hose & tube assembly.
Description: 4.2L, supply, A4/S4. 4.2L, main, rear. 4.2L feed.
MSRP $39.58
$26.82
MSRP $39.58
$26.82
15
Engine Coolant Hose Audi
Audi Description: Pipe to Water Connection. From Reservoir Pipe. 4.2L, supply, A4/S4.
Engine Coolant Hose.
Engine Coolant Hose.
18
Engine Coolant Temperature Sensor Audi
Audi Description:
Engine Coolant Temperature Sensor.
Engine Coolant Temperature Sensor.
MSRP $57.77
$38.54
MSRP $57.77
$38.54
Related Parts
Part # / Description / Price
Price
Secondary Air Injection Pump Check Valve Audi
Audi Description:
Secondary Air Injection Pump Check Valve.
Secondary Air Injection Pump Check Valve.
Secondary Air Injection Pump Hose Audi
Audi Description: To air cleaner. Cabriolet S4. 4.2L. #1.
Secondary Air Injection Pump Hose.
Secondary Air Injection Pump Hose.