BMW E87 E90 E91 120i 320i N46 Sensor Lambda Probe Black 7530282

BMW E87 E90 E91 120i 320i N46 Sensor Lambda Probe is an item from the Lambda probes and O2 sensors category, designed for precise monitoring of the air-fuel mixture composition in N46 petrol engines. This offered BMW component comes from dismantling, which allows for an economical yet technically sound repair of the engine control system. Thanks to maintaining factory specifications, it is a particularly beneficial solution for servicing 1 and 3 series vehicles.

Specifications and technical data

• SKU: 7530282
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7530282
• Substitutable numbers: 11787530282, 7530282
• Color: Black
• Category: Oxygen Sensors

Purpose and function of the BMW lambda probe

The lambda probe in the N46 engine is responsible for continuous measurement of oxygen content in the exhaust gases and transmitting a signal to the engine control unit. Based on this, the ECU corrects the fuel dose, keeping the mixture in the optimal range. A properly functioning probe supports:

• stable operation of the power unit across the full load range,
• reduced fuel consumption while maintaining appropriate dynamics,
• lower exhaust emissions and protection of the catalytic converter,
• precise operation of the engine control unit adaptations.

In the event of errors related to fuel trims or irregular idling, replacing the lambda probe with a functional OEM part is one of the fundamental diagnostic and repair steps.

Construction and functional features

The offered BMW lambda probe features a construction typical for this type of component, with a sensor placed in a metal body and a cable terminated with an electrical connector. The Black housing facilitates visual matching to the factory wiring harness and engine accessories. This solution ensures:

• a secure electrical connection with the vehicle's installation,
• resistance to temperature and operating conditions in the engine bay,
• preservation of the original mounting geometry in the exhaust system.

Thanks to the use of an original BMW component, compatibility with the factory control software and correct signal interpretation by the ECU are maintained.

Benefits of using an original BMW lambda probe

Choosing a used BMW lambda probe for E87, E90, and E91 models with the N46 engine allows for reduced repair costs while maintaining performance parameters close to factory standards. Key advantages include:

• Original fitment – the component comes from the same design family as the factory-installed parts, which minimizes the risk of installation issues.
• Consistency with the control system – the probe signal is compliant with the engine control unit requirements, which promotes stable engine operation.
• Economical repair – a used part allows for restoring proper system operation without the need to invest in a new part.

This solution is particularly beneficial for vehicles in intensive use, where a reasonable balance between repair costs and maintaining correct operating parameters is important.

Condition, verification, and selection of parts

The offered BMW lambda probe is an aftermarket item, meaning it comes from vehicle dismantling. Before sale, it undergoes standard selection for suitability for further use. When selecting, it is worth paying attention to:

• compatibility with the N46 engine generation in the specific BMW model,
• type of exhaust system used,
• location of the probe in the system (before or after the catalytic converter – according to vehicle documentation).

To avoid mistakes, it is recommended to compare the mounting configuration with the currently installed part and verify compatibility in the vehicle's service documentation.

More about used electronics and sensors

When deciding to install a used sensor, it is worth knowing the general principles of selecting and verifying automotive electronics. Practical tips on choosing controllers, modules, and sensors can be found in the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

If you are planning a comprehensive repair or upgrade of the mixture control area in your BMW and need other elements from the same group, such as additional probes, O2 sensors, or related exhaust sensors, check the available parts in the BMW Lambda probes and O2 sensors category.