BMW E34 Touring 525 ix Lambda sensor (192 hp Petrol M50 B25 (256S1))
Recommended part replacement interval for your car for the part category Lambda sensor: every 100.000 km
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- Engine Code: 25 6S 1 / 2<M 50 B 25>
- Oxygen Sensor: Regulating Probe
- Exhaust System: before catalytic converter
- Thread Size: M18x1,5
- Oxygen Sensor: Heated
- Cable Length [mm]: 400
- Number of circuits: 4
- Supplementary Article / Supplementary Info Info 2: without plug
- Connector / Clamp: Connector may need adjustment
- Supplementary Article / Supplementary Info: with cable tie, with fastening / mounting material
- Line insulation design: with silicone-coated woven-fibre insulation
- Item number: 3922L0223
- Our price: 19,99 €
- Manufacturer: RIDEX
- EAN number: 4059191378579
- Condition: New
price incl. 19% VAT
excl. delivery costs
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- Engine Code: 25 6S 1 / 2<M 50 B 25>
- Oxygen Sensor: Regulating Probe
- Exhaust System: before catalytic converter
- Thread Size: M18x1,5
- Oxygen Sensor: Heated
- Cable Length [mm]: 400
- Number of circuits: 4
- Supplementary Article / Supplementary Info Info 2: without plug
- Connector / Clamp: Connector may need adjustment
- Supplementary Article / Supplementary Info: with cable tie, with fastening / mounting material
- Line insulation design: with silicone-coated woven-fibre insulation
- Item number: 3922L0223P
- Our price: 41,99 €
- Manufacturer: RIDEX PLUS
- EAN number: 4066423657197
- Condition: New
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- Engine Code: 25 6S 1 / 2<M 50 B 25>
- Oxygen Sensor: Regulating Probe
- Exhaust System: before catalytic converter
- Thread Size: M18x1,5
- Oxygen Sensor: Heated
- Cable Length [mm]: 1280
- Conductor Number: 4
- Number of connectors: 4
- Connector Shape: round
- Line insulation design: with silicone-coated woven-fibre insulation
- Item number: 3922L0285
- Our price: 57,99 €
- Manufacturer: RIDEX
- EAN number: 4064138008112
- Condition: New
price incl. 19% VAT
excl. delivery costs
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- Engine Code: 25 6S 1 / 2<M 50 B 25>
- Oxygen Sensor: Regulating Probe
- Exhaust System: before catalytic converter
- Thread Size: M18x1,5
- Oxygen Sensor: Heated
- Cable Length [mm]: 1280
- Conductor Number: 4
- Number of connectors: 4
- Connector Shape: round
- Line insulation design: with silicone-coated woven-fibre insulation
- Item number: 3922L0285P
- Our price: 61,49 €
- Manufacturer: RIDEX PLUS
- EAN number: 4066423686586
- Condition: New
price incl. 19% VAT
excl. delivery costs
- Oxygen Sensor: Heated
- Conductor Number: 4
- Connector / Clamp: Connector may need adjustment
- Item number: 461912164108
- Our price: 28,49 €
- Manufacturer: MAGNETI MARELLI
- EAN number: 8001063194370
- Condition: New
price incl. 19% VAT
- Oxygen Sensor: Heated
- for OE number: 11 78 1 720 537
- Item number: 08.39.043
- Our price: 31,49 €
- Manufacturer: TRUCKTEC AUTOMOTIVE
- EAN number: 4038081301613
- Condition: New
- Oxygen Sensor: Regulating Probe
- Number of circuits: 4
- Item number: 17004
- Our price: 36,49 €
- Manufacturer: KAMOKA
- EAN number: 2218512870729
- Condition: New
price incl. 19% VAT

- Oxygen Sensor: Finger probe
- Cable Length [mm]: 1450
- Number of pins: 4
- Weight [kg]: 0,292
- for OE number: 11 78 1 468 620, 11 78 1 468 621, 11 78 1 726 321, 11 78 1 733 628, 11 78 1 735 680
- Voltage [V]: 12
- Item number: 9 7021 1
- Our price: 37,49 €
- Manufacturer: GEBE
- EAN number: 4057541109125
- Condition: New
- Oxygen Sensor: Planar probe, Heated
- Cable Length [mm]: 210
- Number of pins: 4
- Item number: 71934
- Our price: 37,49 €
- Manufacturer: AIC
- EAN number: 4046283719341
- Condition: New
Our products are usually delivered without installation instructions. Installation may only be carried out by trained specialist technicians. Products supplied by us are exclusively intended for proper and appropriate use. The warranty is void in the event of improper, contrary to the intended purpose or unsuitable application or use.
For electronic items that leave fault memory entries, it is essential to submit fault memory logs in the event of a claim. This consequently concerns all electronic items that are detected, monitored and controlled by the engine control unit, such as sensors of all kinds (e.g. NOX sensors, ABS sensors), mass airflow sensors, airbag slip rings, headlamp levelling control units, throttle valves, lambda sensors or EGR modules.
If you encounter difficulties during a repair (troubleshooting max. 1 hr.), please contact technical support at:
Phone: 040 - 25 30 66 55 Email: [email protected]
This often avoids extensive troubleshooting that is disproportionate to normal repair times.
The following applies to complaints: The more complete the processes are submitted, the faster they can be processed.
Complete documentation includes the warranty application (incl. KBA no., chassis no., first registration, engine code, mileage), first and second installation invoice, fault memory log, guided troubleshooting and, if applicable, pictures. Incomplete documentation may result in rejection of the claim.
price incl. 19% VAT
excl. delivery costs
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- TecDoc Engine Number: M50 B25 (256S1), M50 B25 (256S2)
- Oxygen Sensor: Regulating Probe
- Product line: Universal
- Number of circuits: 4
- Supplementary Article / Supplementary Info Info 2: without plug
- Item number: 1952
- Our price: 42,49 €
- Manufacturer: NGK
- EAN number: 0087295119525
- Condition: New
Additional expenditure of work necessary. Connector of the " old/faulty" sensor has to been used.
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- Oxygen Sensor: Regulating Probe
- Exhaust System: for pre-catalytic converter
- Product line: Universal fit
- Thread Size: M18x1,5, M18x1.5
- Oxygen Sensor: Heated, Finger probe
- Cable Length [mm]: 750
- Number of pins: 4
- Quality: OE
- Weight [g]: 103
- Manufacturer Restriction: DENSO
- Gross Weight [g]: 152
- Item number: DOX-0118
- Our price: 43,99 €
- Manufacturer: DENSO
- EAN number: 8717613018392
- Condition: New
CV Kit contains 294200-3650
price incl. 19% VAT
excl. delivery costs
- Conductor Number: 636
- for OE number: 037906265S
- Quality: Zr case gnd, OE EQUIVALENT
- Item number: 81515E
- Our price: 49,49 €
- Manufacturer: MEAT & DORIA
- EAN number: 808888965485
- Condition: New
- Fitting Position: before catalytic converter
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- TecDoc Engine Number: M50 B25 (256S1), M50 B25 (256S2)
- Oxygen Sensor: Regulating Probe
- Number of circuits: 4
- Recommended change interval [km]: 160000
- Connector / Clamp: Connector may need adjustment
- Item number: 0 258 986 503
- Our price: 50,49 €
- Manufacturer: BOSCH
- EAN number: 3165143342305
- Condition: New
price incl. 19% VAT
excl. delivery costs
- Fitting Position: before catalytic converter
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- Construction Year from: 04 / 1992
- TecDoc Engine Number: M50 B25 (256S1), M50 B25 (256S2)
- Oxygen Sensor: Oxygen Sensor
- Cable Length [mm]: 1500
- Number of pins: 4
- Length [mm]: 135
- Item number: XLOS1021
- Our price: 50,99 €
- Manufacturer: QUINTON HAZELL
- EAN number: 5022515166984
- Condition: New
price incl. 19% VAT
excl. delivery costs
- Fitting Position: before catalytic converter
- Engine Code: M50B256S1, M50B256S2
- Oxygen Sensor: Oxygen Sensor
- Cable Length [mm]: 200
- Number of pins: 4
- Supplementary Article / Supplementary Info Info 2: without plug
- Specification: Isolated Ground, Planar Type, Zirconia Type
- Length [inch]: 7,87
- Item number: OS-08P
- Our price: 54,49 €
- Manufacturer: MOBILETRON
- EAN number: 22113914656735465673
- Condition: New
65mm Mounting Length; M6 B+
- Fitting Position: before catalytic converter
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- Engine Code: M50 B25
- Construction Year to: 12 / 1995
- Oxygen Sensor: Regulating Probe
- Supplementary Info: Universal
- Oxygen Sensor: Heated
- Number of circuits: 4
- Supplementary Article / Supplementary Info Info 2: without plug
- Item number: 91358
- Our price: 56,49 €
- Manufacturer: NGK
- EAN number: 0087295913581
- Condition: New
Additional expenditure of work necessary. Connector of the " old/faulty" sensor has to been used.
price incl. 19% VAT
excl. delivery costs
- Fitting Position: before catalytic converter
- Construction Year from: 04 / 1992
- Oxygen Sensor: Oxygen Sensor
- Cable Length [mm]: 500
- Number of pins: 4
- Weight [kg]: 0,12
- Technical Information Number: Sensor Type:Planar
- Item number: XLOS2004
- Our price: 56,99 €
- Manufacturer: QUINTON HAZELL
- EAN number: 5022515177560
- Condition: New
Universal
- Oxygen Sensor: Regulating Probe
- Cable Length [mm]: 1410
- Number of circuits: 4
- Item number: 0895050
- Our price: 58,49 €
- Manufacturer: METZGER
- EAN number: 4250032702069
- Condition: New
price incl. 19% VAT
excl. delivery costs
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- Oxygen Sensor: Regulating Probe
- Engine Code: M50 B20 (206S1), M50 B20 (206S2)
- Oxygen Sensor: Finger probe, Heated
- Cable Length [mm]: 1420
- Item number: ES10986-12B1
- Our price: 59,99 €
- Manufacturer: DELPHI
- EAN number: 5012759387566
- Condition: New
price incl. 19% VAT
excl. delivery costs
- Oxygen Sensor: Oxygen Sensor
- Length [mm]: 1490
- Number of circuits: 4
- Weight [kg]: 0,16
- Voltage [V]: 12
- Operating Mode: Electric
- Always compare old and new part (in particular OE No.)
- Item number: 09SKV049
- Our price: 60,99 €
- Manufacturer: ESEN SKV
- EAN number: 2249698728508
- Condition: New
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