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BMW 3-Series E46 (1999-2006) Exhaust Pipes, Manifolds & EGR - Oxygen Sensors
Oxygen Sensors
The oxygen sensor actively measures the exhaust output from the engine in order to determine the proper mixture for the car. If you are having trouble adjusting the mixture on your car to proper levels, there is a high chance that you may have a faulty oxygen sensor. The oxygen sensor is located before the catalytic converter because the air/fuel mixture ratio cannot be accurately calculated after the exhaust gases have been processed through the CAT. It's also highly recommended that you check out our Pelican Technical Article on Replacing Oxygen Sensors.
OEM OEM
11-78-7-515-827
(1)

$ 180.25

$ 152.44

- 325Ci Coupe (2003-06)
- 325i (2003-05)

Note: Engine: M56

$ 391.61

$ 285.17

- 325Ci Coupe (2003-06)
- 325i (2003-05)

Note: Engine: M56

(2)

$ 70.75

$ 63.34

323Ci and 328Ci (2000) | 323i and 328i (1999-00)
325Ci and 330Ci (2004-06) | 325Ci Convertible (2003)
325Ci Coupe (2003) | 325Ci, 325i, 330Ci and 330i (2001-02)
325i (2003) | 325i and 330i (2004-05)
325xi and 330xi (2001-05) | 330Ci (2003)
330i Sedan (2003) | M3 (2001-06)

Note: Includes: Reusable watertight high temperature resistant, posi-lock connectors.

(4 per car, sold individually)

OEM OEM
11-78-7-514-926
(1)

$ 150.00

$ 103.94

325Ci and 330Ci (2004-06) | 325Ci Convertible (2003) from 3/03
325Ci Coupe (2003) Engine: M56;
from 3/03 Engine: M54 | 325i (2003) Engine: M56;
from 3/03 Engine: M54
325i and 330i (2004-05) | 330Ci (2003) from 3/03
330i Sedan (2003) from 3/03

$ 310.17

$ 246.94

325Ci and 330Ci (2004-06) | 325Ci Convertible (2003) from 3/03
325Ci Coupe (2003) Engine: M56;
from 3/03 Engine: M54 | 325i (2003) Engine: M56;
from 3/03 Engine: M54
325i and 330i (2004-05) | 330Ci (2003) from 3/03
330i Sedan (2003) from 3/03

OEM OEM
11-78-7-523-434

$ 176.75

$ 149.48

325Ci Convertible (2003) from 3/03 | 325Ci Convertible (2004-06)
325Ci Coupe (2003) from 3/03 Engine: M54 | 325Ci Coupe (2004-06) Engine: M54
325i (2003) from 3/03 Engine: M54 | 325i (2004-05) Engine: M54
330Ci (2003) from 3/03 | 330Ci (2004-06)
330i Sedan (2003) from 3/03 | 330i Sedan (2004-05)

$ 401.59

$ 319.47

325Ci Convertible (2003) from 3/03 | 325Ci Convertible (2004-06)
325Ci Coupe (2003) from 3/03 Engine: M54 | 325Ci Coupe (2004-06) Engine: M54
325i (2003) from 3/03 Engine: M54 | 325i (2004-05) Engine: M54
330Ci (2003) from 3/03 | 330Ci (2004-06)
330i Sedan (2003) from 3/03 | 330i Sedan (2004-05)

OEM OEM
11-78-7-523-435

$ 176.75

$ 149.48

325Ci Convertible (2003) from 3/03 | 325Ci Convertible (2004-06)
325Ci Coupe (2003) from 3/03 Engine: M54 | 325Ci Coupe (2004-06) Engine: M54
325i (2003) from 3/03 Engine: M54 | 325i (2004-05) Engine: M54
330Ci (2003) from 3/03 | 330Ci (2004-06)
330i Sedan (2003) from 3/03 | 330i Sedan (2004-05)

$ 401.59

$ 319.47

325Ci Convertible (2003) from 3/03 | 325Ci Convertible (2004-06)
325Ci Coupe (2003) from 3/03 Engine: M54 | 325Ci Coupe (2004-06) Engine: M54
325i (2003) from 3/03 Engine: M54 | 325i (2004-05) Engine: M54
330Ci (2003) from 3/03 | 330Ci (2004-06)
330i Sedan (2003) from 3/03 | 330i Sedan (2004-05)

OEM OEM
11-78-7-514-927

$ 127.75

$ 114.83

325Ci and 330Ci (2004-06) | 325Ci Convertible (2003) from 3/03
325Ci Coupe (2003) Engine: M56;
from 3/03 Engine: M54 | 325i (2003) Engine: M56;
from 3/03 Engine: M54
325i and 330i (2004-05) | 330Ci (2003) from 3/03
330i Sedan (2003) from 3/03

$ 310.17

$ 246.94

325Ci and 330Ci (2004-06) | 325Ci Convertible (2003) from 3/03
325Ci Coupe (2003) Engine: M56;
from 3/03 Engine: M54 | 325i (2003) Engine: M56;
from 3/03 Engine: M54
325i and 330i (2004-05) | 330Ci (2003) from 3/03
330i Sedan (2003) from 3/03

OEM OEM
11-78-1-405-324

$ 99.75

$ 88.09

- M3 (2001-06)

Note: Before catalyst in exhaust manifold.

$ 313.31

$ 228.33

- M3 (2001-06)

Note: Before catalyst in exhaust manifold.

OEM OEM
11-78-1-406-621

$ 137.50

$ 110.87

- M3 (2001-06)

Note: After catalyst in exhaust manifold.

$ 313.31

$ 228.33

- M3 (2001-06)

Note: After catalyst in exhaust manifold.

OEM OEM
11-78-1-406-622

$ 170.00

$ 149.48

- M3 (2001-06)

Note: After catalyst in exhaust manifold.

$ 313.31

$ 228.33

- M3 (2001-06)

Note: After catalyst in exhaust manifold.

$ 18.17

$ 17.04

- 328i Sedan (1999-00)

OEM OEM
11-78-1-743-994

$ 162.50

$ 101.37

- M3 (2001-06)

Note: Before catalyst in exhaust manifold.

$ 313.31

$ 228.33

- M3 (2001-06)

Note: Before catalyst in exhaust manifold.

OEM OEM
11-78-7-515-826
(1)

$ 180.25

$ 152.44

- 325Ci Coupe (2003-06)
- 325i (2003-05)

Note: Engine: M56

$ 391.61

$ 285.17

- 325Ci Coupe (2003-06)
- 325i (2003-05)

Note: Engine: M56

OEM OEM
11-78-1-742-050
(3)

$ 77.00

$ 70.28

- 323Ci and 328Ci (2000)
- 323i and 328i (1999-00)
- 325Ci, 325i, 330Ci and 330i (2001-03)
- 325xi and 330xi (2001-05)

Note: Pre-Catalytic Converter Oxygen Sensor

(2 per car, sold individually)

$ 332.20

$ 309.67

- 323Ci and 328Ci (2000)
- 323i and 328i (1999-00)
- 325Ci, 325i, 330Ci and 330i (2001-03)
- 325xi and 330xi (2001-05)

Note: Pre-Catalytic Converter Oxygen Sensor

(2 per car, sold individually)

OEM OEM
11-78-1-433-940
(2)

$ 94.25

$ 76.22

- 323Ci and 328Ci (2000)
- 323i and 328i (1999-00)
- 325Ci, 325i, 330Ci and 330i (2001-03)
- 325xi and 330xi (2001-05)

Note: Post-Catalytic Converter Oxygen Sensor

(2 per car, sold individually)

$ 313.31

$ 228.33

- 323Ci and 328Ci (2000)
- 323i and 328i (1999-00)
- 325Ci, 325i, 330Ci and 330i (2001-03)
- 325xi and 330xi (2001-05)

Note: Post-Catalytic Converter Oxygen Sensor

(2 per car, sold individually)

$ 4.72

$ 3.27

- M3 (2001-06)

$ 123.25

- 323i Sedan (1999)

Note: 4 Wire 410mm wire length Heated Thimble w/ OE connector, M52

$ 153.00

325Ci (2003) 1010mm wire length 5 Wire Before Converter From 3/03 Front of Manifold, M54 | 325Ci (2006) 1010mm wire length 5 Wire Before Converter w/ OE connector Wide Band Air/Fuel Ratio
325Ci and 325xi (2004-05) 1010mm wire length 5 Wire Before Converter w/ OE connector Wide Band Air/Fuel Ratio, M54 | 325i (2003) 1010mm wire length 5 Wire Before Converter From 3/03 w/ OE connector, M54
325i (2004) 1010mm wire length 5 Wire Before Converter w/ OE connector Wide Band Air/Fuel Ratio, M54 | 325i (2005) 1010mm wire length 5 Wire Before Converter Front of Manifold w/ OE connector, M54
330Ci (2006, 2004) 1010mm wire length 5 Wire Before Converter w/ OE connector Wide Band Air/Fuel Ratio | 330Ci and 330i Sedan (2003) 1010mm wire length 5 Wire Before Converter From 3/03 Front of Manifold
330Ci and 330i Sedan (2005) 1010mm wire length 5 Wire Before Converter Front of Manifold w/ OE connector | 330i (2004) 1010mm wire length 5 Wire Before Converter w/ OE connector Wide Band Air/Fuel Ratio

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