Lambda Sensors / Probes

Lambda oxygen sensor, in front of catalyst.



Fits:
Porsche 95B Macan 3.0L / 3.6L 2014-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 29 (LEFT) / 28 (RIGHT)

Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.

Failure Symptoms:
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Driveability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail

Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203

The product you are viewing cross references to these numbers

Lambda Sensor, AFTER Catalytic Converter.

The Lambda Sensor, After Catalytic Converter is an OEM-quality emissions control sensor designed to monitor the oxygen content of exhaust gases after they have passed through the catalytic converter. Commonly referred to as a post-catalyst oxygen sensor, it provides vital feedback to the engine control unit (ECU) regarding catalytic converter efficiency and overall emissions system performance.

Fits:

• Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18

Diagram Ref No 6

Located downstream of the catalytic converter, the sensor continuously measures residual oxygen levels in the exhaust stream. This allows the ECU to evaluate catalyst effectiveness, detect emissions-related faults, and ensure the vehicle operates within manufacturer emissions specifications. Manufactured to OEM standards, it delivers accurate readings, reliable performance, and long service life.

What This Product Does:

• Monitors oxygen levels in exhaust gases after the catalytic converter
• Measures catalytic converter efficiency and performance
• Provides real-time data to the engine control unit (ECU)
• Supports emissions control system diagnostics and monitoring
• Helps maintain compliance with emissions regulations
• Assists in identifying catalyst and exhaust system faults

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Catalytic converter efficiency fault codes
• Failed emissions or MOT tests
• Increased exhaust emissions
• Oxygen sensor-related diagnostic trouble codes (DTCs)
• Engine management warning messages
• Incorrect catalytic converter monitoring data
• Potential reduction in fuel economy in some applications

Why Replacement Matters:

• Restores precise exhaust oxygen monitoring
• Ensures accurate catalytic converter efficiency assessment
• Helps maintain emissions compliance and MOT readiness
• Prevents persistent engine management warning lights
• Supports correct operation of the emissions control system
• Allows early detection of catalyst and exhaust-related issues
• Reduces harmful exhaust emissions
• Maintains long-term reliability of the engine management and emissions systems

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

8K0906262G

The product you are viewing cross references to these numbers

Lambda Sensor, AFTER Catalytic Converter.

The BOSCH Lambda Sensor, After Catalytic Converter is an OEM-quality emissions control sensor designed to monitor the oxygen content of exhaust gases after they have passed through the catalytic converter. Commonly referred to as a post-catalyst oxygen sensor, it provides vital feedback to the engine control unit (ECU) regarding catalytic converter efficiency and overall emissions system performance.

Fits:

• Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18

Diagram Ref No 6

Located downstream of the catalytic converter, the BOSCH sensor continuously measures residual oxygen levels in the exhaust stream. This allows the ECU to evaluate catalyst effectiveness, detect emissions-related faults, and ensure the vehicle operates within manufacturer emissions specifications. It delivers accurate readings, reliable performance, and long service life.

What This Product Does:

• Monitors oxygen levels in exhaust gases after the catalytic converter
• Measures catalytic converter efficiency and performance
• Provides real-time data to the engine control unit (ECU)
• Supports emissions control system diagnostics and monitoring
• Helps maintain compliance with emissions regulations
• Assists in identifying catalyst and exhaust system faults

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Catalytic converter efficiency fault codes
• Failed emissions or MOT tests
• Increased exhaust emissions
• Oxygen sensor-related diagnostic trouble codes (DTCs)
• Engine management warning messages
• Incorrect catalytic converter monitoring data
• Potential reduction in fuel economy in some applications

Why Replacement Matters:

• Restores precise exhaust oxygen monitoring
• Ensures accurate catalytic converter efficiency assessment
• Helps maintain emissions compliance and MOT readiness
• Prevents persistent engine management warning lights
• Supports correct operation of the emissions control system
• Allows early detection of catalyst and exhaust-related issues
• Reduces harmful exhaust emissions
• Maintains long-term reliability of the engine management and emissions systems

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

8K0906262G

The product you are viewing cross references to these numbers

Lambda/oxygen sensor - pre-catalytic converter. 

Fits:
Porsche 95B.1 Macan S Diesel 3.0L 2014-18

Diagram ref. 6. 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95860617241

The product you are viewing cross references to these numbers

LEFT Lambda Oxygen Sensor, In Front Of Catalyst.

The BOSCH Lambda Oxygen Sensor, In Front Of Catalyst is a premium OEM-quality engine management and emissions control sensor manufactured by Bosch, designed to monitor the oxygen content of exhaust gases before they enter the catalytic converter. Also known as an upstream oxygen sensor or pre-catalyst lambda sensor, it plays a crucial role in regulating the engine's air-fuel mixture for optimal combustion efficiency.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18

Diagram Ref No 29

The sensor continuously measures oxygen levels in the exhaust stream and sends real-time data to the engine control unit (ECU). The ECU then adjusts fuel injection parameters to maintain the ideal air-fuel ratio, improving engine performance, fuel economy, and emissions control. Manufactured to Bosch's exacting standards, this sensor provides accurate readings, rapid response times, and long-term reliability.

What This Product Does:

• Monitors oxygen levels in exhaust gases before the catalytic converter
• Provides real-time feedback to the engine control unit (ECU)
• Helps regulate the air-fuel mixture for efficient combustion
• Supports engine performance and throttle response
• Improves fuel economy and emissions control
• Ensures optimal catalytic converter operation

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Poor fuel economy Rough idle or unstable engine operation
• Reduced engine performance and acceleration
• Engine hesitation or sluggish throttle response
• Increased exhaust emissions Failed emissions or MOT tests
• Oxygen sensor-related fault codes stored in the ECU

Why Replacement Matters:

• Restores accurate air-fuel ratio monitoring
• Improves fuel economy and combustion efficiency
• Enhances engine performance and throttle response
• Reduces harmful exhaust emissions
• Supports proper catalytic converter operation and longevity
• Prevents unnecessary engine management warning lights
• Helps maintain emissions compliance and MOT readiness
• Ensures reliable communication between the sensor and ECU for optimum engine operation

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203D

The product you are viewing cross references to these numbers

LEFT Lambda Sensor, AFTER Catalytic Converter.

The LEFT Lambda Sensor, After Catalytic Converter is an OEM-quality emissions control sensor designed to monitor oxygen levels in the exhaust gases after they have passed through the catalytic converter on the left-hand exhaust bank. Also known as a post-catalyst oxygen sensor, it provides critical feedback to the engine control unit (ECU) to evaluate catalytic converter efficiency and ensure the emissions system is functioning correctly.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 31

Positioned downstream of the catalytic converter, this sensor continuously measures residual oxygen content in the exhaust stream, allowing the ECU to monitor catalyst performance, detect faults, and maintain compliance with emissions regulations. Manufactured to OEM specifications, it delivers accurate readings, reliable operation, and long service life.

What This Product Does:

• Monitors oxygen levels in exhaust gases after the catalytic converter
• Measures catalytic converter efficiency on the left exhaust bank
• Provides real-time emissions data to the engine control unit (ECU)
• Supports emissions control system monitoring and diagnostics
• Helps ensure compliance with environmental regulations
• Assists in identifying catalytic converter and exhaust system faults

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Catalytic converter efficiency fault codes
• Failed emissions or MOT tests
• Oxygen sensor-related diagnostic trouble codes (DTCs)
• Increased exhaust emissions
• Engine management warning messages
• Incorrect catalytic converter monitoring data
• Potential reduction in fuel economy in some applications

Why Replacement Matters:

• Restores precise exhaust oxygen monitoring
• Ensures accurate catalytic converter efficiency assessment
• Helps maintain emissions compliance and MOT readiness
• Prevents persistent engine management warning lights
• Supports proper operation of the emissions control system
• Allows early detection of catalyst and exhaust-related issues
• Reduces harmful exhaust emissions
• Maintains long-term reliability and performance of the engine management system

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203E

The product you are viewing cross references to these numbers

LEFT Lambda Sensor, AFTER Catalytic Converter.

The BOSCH LEFT Lambda Sensor, After Catalytic Converter is an emissions control sensor designed to monitor oxygen levels in the exhaust gases after they have passed through the catalytic converter on the left-hand exhaust bank. Also known as a post-catalyst oxygen sensor, it provides critical feedback to the engine control unit (ECU) to evaluate catalytic converter efficiency and ensure the emissions system is functioning correctly.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 31

Positioned downstream of the catalytic converter, this BOSCH sensor continuously measures residual oxygen content in the exhaust stream, allowing the ECU to monitor catalyst performance, detect faults, and maintain compliance with emissions regulations. It delivers accurate readings, reliable operation, and long service life.

What This Product Does:

• Monitors oxygen levels in exhaust gases after the catalytic converter
• Measures catalytic converter efficiency on the left exhaust bank
• Provides real-time emissions data to the engine control unit (ECU)
• Supports emissions control system monitoring and diagnostics
• Helps ensure compliance with environmental regulations
• Assists in identifying catalytic converter and exhaust system faults

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Catalytic converter efficiency fault codes
• Failed emissions or MOT tests
• Oxygen sensor-related diagnostic trouble codes (DTCs)
• Increased exhaust emissions
• Engine management warning messages
• Incorrect catalytic converter monitoring data
• Potential reduction in fuel economy in some applications

Why Replacement Matters:

• Restores precise exhaust oxygen monitoring
• Ensures accurate catalytic converter efficiency assessment
• Helps maintain emissions compliance and MOT readiness
• Prevents persistent engine management warning lights
• Supports proper operation of the emissions control system
• Allows early detection of catalyst and exhaust-related issues
• Reduces harmful exhaust emissions
• Maintains long-term reliability and performance of the engine management system

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203E

The product you are viewing cross references to these numbers

RIGHT Lambda Oxygen Sensor, In Front Of Catalyst.

The BOSCH RIGHT Lambda Oxygen Sensor, In Front Of Catalyst is a premium OEM-quality engine management and emissions control sensor manufactured by Bosch, designed to monitor oxygen levels in the exhaust gases before they enter the catalytic converter on the right-hand exhaust bank. Also known as an upstream oxygen sensor or pre-catalyst lambda sensor, it plays a critical role in regulating the air-fuel mixture for efficient combustion and optimal engine performance.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 28

The sensor continuously measures oxygen content in the exhaust stream and sends real-time data to the engine control unit (ECU). Using this information, the ECU adjusts fuel injection parameters to maintain the ideal air-fuel ratio, helping maximise power output, fuel efficiency, and emissions control. Manufactured to Bosch's exacting standards, this sensor provides fast response times, accurate readings, and long-lasting reliability.

What This Product Does:

• Monitors oxygen levels in exhaust gases before the catalytic converter
• Provides real-time feedback to the engine control unit (ECU)
• Helps regulate the air-fuel mixture for optimum combustion
• Supports engine performance, fuel efficiency, and throttle response
• Reduces exhaust emissions through accurate fuel control
• Ensures efficient operation of the catalytic converter

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Poor fuel economy
• Rough idle or unstable engine running
• Reduced engine power and acceleration
• Engine hesitation or sluggish throttle response
• Increased exhaust emissions Failed emissions or MOT tests
• Oxygen sensor-related fault codes stored in the ECU

Why Replacement Matters:

• Restores accurate air-fuel ratio monitoring
• Improves fuel economy and combustion efficiency
• Enhances engine performance and throttle response
• Reduces harmful exhaust emissions
• Supports proper catalytic converter function and longevity
• Prevents unnecessary engine management warning lights
• Helps maintain emissions compliance and MOT readiness
• Ensures reliable communication between the sensor and ECU for optimum engine operation

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203F

The product you are viewing cross references to these numbers

RIGHT Lambda Sensor, AFTER Catalytic Converter.
The RIGHT Lambda Sensor, After Catalytic Converter is an OEM-quality emissions control sensor designed to monitor the oxygen content of exhaust gases after they pass through the catalytic converter on the right-hand exhaust bank. Also known as a post-catalyst oxygen sensor, it provides continuous feedback to the engine control unit (ECU) to evaluate catalytic converter efficiency and ensure the emissions control system is operating correctly.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 30

Located downstream of the catalytic converter, this sensor measures residual oxygen levels in the exhaust stream, allowing the ECU to monitor catalyst performance, detect emissions-related faults, and maintain compliance with environmental regulations. Manufactured to OEM specifications, it delivers accurate readings, reliable operation, and long-term durability.

What This Product Does:

• Monitors oxygen levels in exhaust gases after the catalytic converter
• Measures catalytic converter efficiency on the right exhaust bank
• Provides real-time emissions data to the engine control unit (ECU)
• Supports emissions control system diagnostics and monitoring
• Helps maintain compliance with emissions regulations
• Assists in identifying catalytic converter and exhaust system faults
  
  

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Catalytic converter efficiency fault codes
• Failed emissions or MOT tests
• Oxygen sensor-related diagnostic trouble codes (DTCs)
• Increased exhaust emissions
• Engine management warning messages
• Incorrect catalytic converter monitoring data
• Potential reduction in fuel economy in some applications

Why Replacement Matters:

• Restores precise exhaust oxygen monitoring
• Ensures accurate catalytic converter efficiency assessment
• Helps maintain emissions compliance and MOT readiness
• Prevents persistent engine management warning lights
• Supports proper operation of the emissions control system
• Allows early detection of catalyst and exhaust-related issues
• Reduces harmful exhaust emissions
• Maintains long-term reliability and performance of the engine management system

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203G

The product you are viewing cross references to these numbers

RIGHT Lambda Sensor, AFTER Catalytic Converter.
The BOSCH RIGHT Lambda Sensor, After Catalytic Converter is an OEM-quality emissions control sensor designed to monitor the oxygen content of exhaust gases after they pass through the catalytic converter on the right-hand exhaust bank. Also known as a post-catalyst oxygen sensor, it provides continuous feedback to the engine control unit (ECU) to evaluate catalytic converter efficiency and ensure the emissions control system is operating correctly.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 30

Located downstream of the catalytic converter, this BOSCH sensor measures residual oxygen levels in the exhaust stream, allowing the ECU to monitor catalyst performance, detect emissions-related faults, and maintain compliance with environmental regulations. It delivers accurate readings, reliable operation, and long-term durability.

What This Product Does:

• Monitors oxygen levels in exhaust gases after the catalytic converter
• Measures catalytic converter efficiency on the right exhaust bank
• Provides real-time emissions data to the engine control unit (ECU)
• Supports emissions control system diagnostics and monitoring
• Helps maintain compliance with emissions regulations
• Assists in identifying catalytic converter and exhaust system faults
  
  

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Catalytic converter efficiency fault codes
• Failed emissions or MOT tests
• Oxygen sensor-related diagnostic trouble codes (DTCs)
• Increased exhaust emissions
• Engine management warning messages
• Incorrect catalytic converter monitoring data
• Potential reduction in fuel economy in some applications

Why Replacement Matters:

• Restores precise exhaust oxygen monitoring
• Ensures accurate catalytic converter efficiency assessment
• Helps maintain emissions compliance and MOT readiness
• Prevents persistent engine management warning lights
• Supports proper operation of the emissions control system
• Allows early detection of catalyst and exhaust-related issues
• Reduces harmful exhaust emissions
• Maintains long-term reliability and performance of the engine management system

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B906203G

The product you are viewing cross references to these numbers