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Powertrain Control
2008 Audi S4 Mass Air Flow Sensor, Knock Sensor
Currently shopping for
2008 Audi S4
Change VehicleVehicle Options
8 Cyl 4.2 L GASVehicle Options
8 Cyl 4.2 L GASCategories Close X
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How to use OE catalog
6 diagrams found for the vehicle you selected.Select your vehicle options to narrow down results.
- 1.Cooling - Hoses & Pipes (4.2L,A4/S4,Supply)
- 2.Cooling - Hoses & Pipes (4.2L,Feed)
- 3.Electrical - Ignition System (4.2L,A4/S4)
- 4.Electrical - Ignition System (4.2L)
- 5.Emission System - Emission Components (4.2L,A4/S4)
- 6.Emission System - Emission Components (4.2L)
Sort by:
Ref No.
Ref No.
Part No. & Part Description
Price & Qty.
Part No. &
Part Description
Part Description
- 1
$992.29 $767.541
- 1
$129.98 $92.811
- 1
$751.67 $536.691
- 2
$111.67 $79.731
- 2
$21.79 $16.351 - 2
$13.34 $10.251
- 2
$26.00 $16.251
- 3
$106.64 $76.151 - 3
$106.64 $76.151
- 3
$346.67 $247.521 - 3
$328.33 $234.431
- 3
$8.87 $5.671
- 4
$135.00 $96.391
- 4
079-905-234-B
Sensor- Part Notes: 4.2L, A4/S4, Impulse;4.2L, Impulse
- Location: Driver Side;Passenger Side
$36.99 $27.741
- 5
$135.00 $96.391
- 5
$256.67 $183.261
- 5
$236.66 $168.981
- 6
$11.14 $7.131
- 6
$236.66 $168.981
- 6
$969.06 $749.571
- 7
$0.70 $0.451
- 7
079-905-377-E
Knock Sensor- Part Notes: 4.2L, A4/S4, Front;4.2L, A4/S4, Rear;4.2L, Front;4.2L, Rear
- Location: Driver Side;Passenger Side
$143.32 $102.331 - 7
$122.81 $87.691 - 7
$137.81 $98.401
- 7
$11.85 $7.581
- 8
$31.00 $19.381
- 8
$1997.13 $1668.861 - 8
$1961.41 $1639.111
- 8
$474.98 $339.141
- 9
$6.27 $4.021
- 9
$9.43 $7.261
- 9
$14.96 $9.571
- 10
$150.00 $107.101 - 10
$153.33 $109.481
- 10
- 10
$221.66 $158.271
- 11
$150.00 $107.101
- 11
$123.34 $88.061
- 11
$99.99 $71.391
- 12
$14.96 $9.571
- 12
$5.17 $3.321
- 13
$17.94 $11.481
- 13
$3.17 $2.041
- 14
$100.00 $71.401
- 14
$39.58 $24.741
- 15
$103.32 $73.771 - 15
$100.00 $71.401
- 16
$4.18 $2.661 - 16
$14.96 $9.571
- 17
$7.21 $4.621 - 17
$126.66 $90.441
- 18
$1.04 $0.671
- 18
$57.77 $36.111
- 19
$183.32 $130.891
- 19
$4.39 $2.821
- 20
$2.73 $1.751
- 20
$809.23 $625.941
- 21
$253.32 $180.871 - 21
$317.66 $226.801
- 22
$2.20 $1.411
- 23
$415.00 $296.311 - 23
$455.00 $324.871
- 24
$54.00 $33.751 - 24
$43.18 $26.991
- 25
$23.18 $14.491
- 26
$10.58 $8.131
- 27
$21.94 $13.711
- 28
$5.20 $3.331
- 29
$98.32 $70.201
- 30
$119.99 $85.671
- 31
$57.32 $41.611
- 32
$0.70 $0.451
- 33
$318.33 $227.291 - 33
$141.67 $101.151
- 34
$0.16 $0.101
- 35
$56.48 $41.011
- 36
$57.32 $41.611
- 37
$413.33 $295.121
- 38
$374.98 $267.741
- $99.98 $71.391
$186.67 $133.281
$250.81 $179.081
$228.65 $163.261