VW Volkswagen Golf Mk5 Petrol Exhaust Lambda Oxygen Sensor 04E906262CR

VW Volkswagen Golf Mk5 Petrol Exhaust Lambda Oxygen Sensor is a precision exhaust system component responsible for monitoring the air-fuel mixture in petrol engines. As part of the Lambda sensors and O2 sensors group, it supports the proper operation of the engine control unit, ensures stable engine performance, and helps reduce exhaust emissions. This used OEM component is a sensible choice for drivers looking for a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 04E906262CR
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04E906262CR
• Substitutable numbers: 04E906262CR, 04E 906 262 CR
• Fuel type: Petrol
• Category: Oxygen Sensors

The function of the lambda sensor in the exhaust system

The exhaust lambda sensor in a petrol engine measures the oxygen content in the exhaust gases and sends a signal to the engine control unit. Based on this, the ECU adjusts the fuel dosage, keeping the mixture within the optimal range. A properly functioning O2 sensor helps to:

• maintain stable idle and smooth operation of the petrol unit,
• reduce fuel consumption through precise dosing,
• protect the catalytic converter from overheating and damage,
• meet the exhaust emission standards required for spark-ignition vehicles.

For petrol-powered engines, a functional O2 sensor is crucial for maintaining the correct air-to-fuel ratio, which translates into the performance and durability of the power unit.

Why choose an original Volkswagen lambda sensor

The original Volkswagen lambda sensor has been designed specifically for the requirements of the engine control unit and the operating characteristics of this brand's engines. As a result, it provides:

• the correct signal characteristics for the engine control unit,
• proper fitment of the thread and electrical connector,
• stable operating parameters across the full temperature range of the exhaust system.

A used OEM component from the Lambda sensors and O2 sensors category is a compromise between cost and maintaining factory operating parameters, which is particularly important when servicing older model generations, such as the Golf.

Intended for petrol engines

The presented lambda sensor is intended for exhaust systems in vehicles powered by Petrol. This means that its characteristics have been adapted to the operating conditions typical for petrol units, including:

• exhaust gas temperatures in spark-ignition engines,
• the air-fuel mixture composition characteristic of petrol,
• the requirements of engine control units used in Volkswagen vehicles.

Selecting a sensor compatible with the fuel type is essential for the correct interpretation of the signal by the ECU and for the durability of the sensor itself.

Condition, installation, and practical aspects

The item is offered in used condition, which allows for reduced repair costs while maintaining the manufacturer's original specifications. Before installation, it is recommended to verify the electrical wiring and the tightness of the exhaust system so that the newly installed sensor can operate under proper conditions. In practice, replacing a lambda sensor is one of the most common service tasks in high-mileage vehicles, and a properly selected O2 sensor quickly translates into improved throttle response and engine stability.

Selection by OEM and practical tips

When selecting a lambda sensor for a specific Volkswagen vehicle, it is worth using OEM markings and catalog data to ensure full compatibility with the wiring harness and the control unit. It is also helpful to check compatibility via interchangeable part numbers, especially in the case of upgrades or differences between model years. For users who want to better understand how to safely use used sensors and electronics, we have prepared a guide: Used automotive electronics – how to consciously choose ECU modules and sensors.

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Volkswagen and need other components from the same group, such as additional O2 sensors, pre-catalyst sensors, or post-catalyst sensors, check the available parts in the Volkswagen Lambda sensors and O2 sensors category.