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95B906203F/1
Product Information
Product Information
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
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95B906203F
95B906203B
95B906203F

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