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NGK

NGK/NTK Lambda O2 Oxygen Sensor Probe 4-Wire Heated 400mm Lead Direct-Fit Upstream/Downstream (Pre/Post-Cat) NGK 0242 NTK OZA572-E5 for BMW 3 Series E36 320i 325i 1990-1999

NGK/NTK Lambda O2 Oxygen Sensor Probe 4-Wire Heated 400mm Lead Direct-Fit Upstream/Downstream (Pre/Post-Cat) NGK 0242 NTK OZA572-E5 for BMW 3 Series E36 320i 325i 1990-1999

£59.70
£133.02 £59.70
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Exhaust Oxygen Probe - 4‑wire heated, 400 mm lead - Direct replacement for BMW 3 Series E36 320i 325i 1990-1999

Bring back crisp throttle response, stable idle and proper fuel trims with this high-accuracy exhaust oxygen probe from NGK-NTK. Engine management relies on the signal from this 4‑pin heated sensor to keep the air–fuel mixture on point, so if you are seeing an engine management light, rough running, flat spots or rising fuel use, a fresh probe is the smart fix.

We have fitted this part ourselves many times and our customers love the plug-in fit and consistent performance. It is a direct plug-and-play unit with the correct connector and a 400 mm pigtail for a tidy install on the listed BMW applications.

Why this sensor is a winner

  • OE-quality NGK-NTK emissions probe for precise AFR feedback
  • 4‑wire heated element for rapid warm-up and stable closed-loop control
  • Direct replacement connector and lead length for quick, clean installation
  • Helps reduce emissions, improve MPG and restore drivability
  • Robust zirconia element engineered to handle heat, vibration and fuel contaminants

Part numbers

NGK: 0242
NTK: OZA572-E5

Technical details

Connector pins 4
Cable length 400 mm
Element type Heated zirconia oxygen probe

Vehicle fitment

Suits selected BMW 3 Series E36 petrol models below. Always verify position on your vehicle if it has more than one sensor.

  • 3 Series
    • 3 Saloon E36
      • 320i 2.0 110 kW 150 hp 09/1990 - 02/1998
      • 325i 2.5 141 kW 192 hp 09/1990 - 09/1995
    • 3 Coupe E36
      • 320i 2.0 110 kW 150 hp 03/1992 - 04/1999
      • 325i 2.5 141 kW 192 hp 03/1992 - 04/1999
    • 3 Convertible E36
      • 325i 2.5 141 kW 192 hp 03/1993 - 03/1995

Pre-check before dispatch

We can confirm compatibility before shipping. Add your UK registration or last 7 of VIN at checkout, or email details to info@mjmodifications.co.uk, and we will verify that NGK 0242 - NTK OZA572-E5 is correct for your car.

Fitting and support

Professional installation recommended. For stress-free fitting, book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk. When installing, confirm the correct sensor location, keep the lead away from heat and moving parts, and avoid contaminating the sensing tip.

Buy with confidence from MJ Modifications

  • Performance parts specialists and enthusiasts
  • We have used this part ourselves with excellent results
  • Customers consistently report smooth running and improved economy after replacement

Search-friendly terms

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