Range Rover Evoque L551 Lambda Oxygen Sensor 2.0 Diesel Electric MPLA-5J299-BB

Range Rover Evoque L551 Lambda Oxygen Sensor 2.0 Diesel Electric is a specialized exhaust system component from the Lambda sensors and O2 sensors group, designed for diesel engines. It is responsible for precise exhaust gas composition measurement, which allows the engine control unit to ensure stable operation, proper fuel dosing, and compliance with emission standards. This used OEM component is a sensible choice for professional repairs or servicing of modern diesel engines.

Specifications and technical data

• SKU: MPLA-5J299-BB
• Mark: Land Rover
• Condition: Used
• OEM Part Number: MPLA-5J299-BB
• Substitutable numbers: MPLA-5J299-BB, MPLA5J299BB, 0281008549
• Fuel type: Diesel
• Rim width: 5
• Category: Oxygen Sensors

Purpose and role in the exhaust system

The lambda sensor in the version dedicated to 2.0 Diesel units in the Range Rover Evoque L551 works in direct connection with the engine control electronics. Based on the signal from the O2 sensor, the controller adjusts the fuel dose, injection timing, and exhaust gas treatment system strategy, which translates into:

• stable engine operation across the entire RPM range,
• more predictable throttle response,
• maintaining the efficiency of the exhaust gas treatment system,
• reducing the risk of error lights related to the fuel mixture.

Compatibility and technical parameters

The presented O2 sensor is a component of an electrically powered measurement system, designed to work with an engine fueled by Diesel. Thanks to this, it is adapted to the operating characteristics of diesel units – different exhaust temperatures, different mixture compositions, and the specific requirements of exhaust gas treatment systems in modern Land Rover designs.

The product comes from the group of original Land Rover components, which means maintaining factory signal characteristics, correct electrical fitment, and compatibility with the engine control software used in the Range Rover Evoque L551.

Characteristics of the used product

The item is offered as a part with a condition marked as Used, which in practice means a component from dismantling, intended for further use after proper installation. This type of solution is often chosen when servicing vehicles a few years old, where it is important to maintain a reasonable balance between repair costs and compliance with factory specifications.

A used lambda sensor allows for reducing replacement costs while maintaining the original design and operating parameters, which is particularly important in the case of advanced exhaust systems in modern diesels.

Installation and operational aspects

Replacing the lambda sensor in the Range Rover Evoque L551 requires following the correct installation procedure – proper tightening torque, protecting the cable from overheating, and correctly connecting the electrical harness. After installation, it is recommended to:

• clear any errors in the engine control unit,
• perform an adaptation or a short test drive to verify operating parameters,
• check the exhaust system for leaks in the vicinity of the sensor.

A correctly selected and installed O2 sensor supports the maintenance of stable combustion parameters, which can positively influence fuel consumption and the refinement of the power unit.

Expanding knowledge about electronics and diagnostics

When selecting used electronic components – such as lambda sensors, controllers, or modules – it is worth following proven diagnostic procedures and practical knowledge. To better understand when used electronics are a sensible choice and how to minimize the risk of a wrong decision, see the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Land Rover Lambda sensors and O2 sensors – component selection

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other elements from the same group, such as additional pre-catalytic sensors, post-filter O2 sensors, or related exhaust control sensors, check the available parts in the Land Rover Lambda sensors and O2 sensors category.