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NGK

NGK/NTK Oxygen O2 Lambda Sensor, Heated 4-Wire 340mm - NGK 97070 / NTK OZA457-EE12 - Pre/Post Cat Upstream Downstream B1S1 B1S2 - BMW E36 E46 E39 E38 Z3 316i 318i 535i 540i 735i 740i - Direct Fit Exhaust AFR Probe

NGK/NTK Oxygen O2 Lambda Sensor, Heated 4-Wire 340mm - NGK 97070 / NTK OZA457-EE12 - Pre/Post Cat Upstream Downstream B1S1 B1S2 - BMW E36 E46 E39 E38 Z3 316i 318i 535i 540i 735i 740i - Direct Fit Exhaust AFR Probe

£77.14
£119.28 £77.14
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Heated Lambda Probe for BMW Classics | NGK 97070 / NTK OZA457-EE12

Restore crisp drivability and clean emissions with this high quality heated exhaust gas sensor. Built by NTK, the sensor division of NGK, it delivers fast light-off and rock solid AFR feedback to your ECU for stable fuel trims and smooth closed loop control. A direct-fit, 4-wire, 340 mm lead probe for popular 1990s and early 2000s BMW petrol models, it is ideal for curing poor MPG, rough idle, hesitation and an illuminated MIL.

We fit these in our own workshop and the results speak for themselves smoother idle, sharper throttle response and cleaner MOT figures. Our customers love the plug-in fit and reliability from a brand they trust.

Part numbers: NGK 97070 | NTK OZA457-EE12

Why choose this sensor

  • Direct-fit heated lambda probe with vehicle-specific connector for quick installation
  • 4-core design for accurate feedback and reliable heater performance
  • 340 mm cable for correct routing on eligible applications
  • Helps recover fuel economy, drivability and cold-start manners
  • Reduces tailpipe emissions for MOT readiness
  • Ideal remedy for slow response or heater circuit faults and persistent engine warning lights

Technical highlights

  • Circuits: 4
  • Lead length: 340 mm
  • Placement: upstream or downstream of the catalyst depending on model Bank 1 Sensor 1 or Bank 1 Sensor 2

Perfect for these BMW applications

Please use our fitment check below or contact us with your registration or last 7 of VIN to confirm position and compatibility.

BMW

3 Series
  • E36 Compact
    • 316i 1.9 77 kW 105 HP 12/1998 - 08/2000
    • 318Ti 1.9 103 kW 140 HP 07/1995 - 08/2000
  • E36 Saloon
    • 318is 1.9 103 kW 140 HP 09/1995 - 02/1998
  • E36 Coupé
    • 318is 1.9 103 kW 140 HP 09/1995 - 04/1999
  • E36 Convertible
    • 318i 1.9 103 kW 140 HP 09/1995 - 04/1999
  • E46 Saloon
    • 316i 1.9 77 kW 105 HP 09/1998 - 02/2005
    • 316i 1.6 77 kW 105 HP 04/2000 - 02/2005
    • 318i 1.9 87 kW 118 HP 02/1998 - 09/2001
  • E46 Coupé
    • 316Ci 1.6 77 kW 105 HP 04/2000 - 07/2006
    • 318Ci 1.9 85 kW 116 HP 11/1999 - 09/2001
    • 318Ci 1.9 87 kW 118 HP 11/1999 - 09/2001
  • E46 Touring
    • 318i 1.9 85 kW 116 HP 10/1999 - 09/2001
    • 318i 1.9 87 kW 118 HP 10/1999 - 09/2001
5 Series
  • E39 Saloon
    • 535i 3.5 173 kW 235 HP 04/1996 - 03/1999
    • 535i 3.5 180 kW 245 HP 04/1999 - 06/2003
    • 540i 4.4 210 kW 286 HP 04/1996 - 06/2003
  • E39 Touring
    • 540i 4.4 210 kW 286 HP 01/1997 - 05/2004
7 Series
  • E38
    • 735i iL 3.5 173 kW 235 HP 01/1996 - 12/1998
    • 735i iL 3.5 175 kW 238 HP 09/1998 - 07/2001
    • 740i iL 4.4 210 kW 286 HP 01/1996 - 11/2001
Z Series
  • Z3 Roadster E36
    • 1.9i 85 kW 116 HP 01/1999 - 01/2003
    • 1.9i 87 kW 118 HP 07/1998 - 01/2003
    • 1.9i 103 kW 140 HP 10/1995 - 03/1999

What symptoms does this fix

  • High fuel consumption and rich or lean running
  • Unstable idle, hesitation or flat spots
  • Engine management light related to sensor heater or slow response
  • Failed emissions test due to incorrect mixture

Fitment support

We verify compatibility before dispatch. Add your UK registration or last 7 of your VIN at checkout and we will confirm the correct position and suitability for your car.

Professional installation

For trouble-free fitting and to protect exhaust threads, we recommend installation by MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk.

Search-friendly terms

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