NGK Lambda Sensor / O2 Sensor 97085 - OZA830-EE1
Genuine NGK lambda sensor, also known as oxygen sensor or O2 sensor. Part number NGK 97085 with NGK reference OZA830-EE1. This 4-wire heated lambda probe is designed to restore accurate air-fuel ratio feedback, improve drivability, help reduce emissions and keep the check engine light at bay when the sensor is the cause. Trusted NGK quality for precise signal, fast light-off and reliable closed-loop operation.
At Nforcd we specify and use NGK sensors daily on our own cars and customer vehicles. Fitment, durability and performance have been consistently excellent, and our customers rate the results highly. If your BMW is showing poor fuel economy, rough idle, sluggish throttle response or a lambda-related fault code, replacing a tired oxygen sensor with this NGK unit is a proven fix where applicable.
Why choose this NGK O2 sensor
- Genuine NGK quality and OE-level reliability
- Heated 4-wire design for rapid warm-up and stable readings
- Correct connector and cable length for the specified applications
- Helps optimise fuelling, emissions and MOT readiness when the old sensor has aged
- Direct replacement for the listed vehicles and positions as specified by the manufacturer
Technical details
| Type | Lambda Sensor, Heated |
| Number of circuits | 4 |
| Length | 736 mm |
| Brand | NGK |
| NGK Part Number | 97085 |
| NGK Reference | OZA830-EE1 |
Compatibility
Use our product recommender to confirm fitment for your exact car, engine and sensor position. If you are unsure, email sales@nforcd.com and we will help you verify the correct part.
- 1 Series
- 1 Hatchback (E81)
- 118i 2.0 (95 kW / 129 hp) (09/2006 - 02/2008)
- 1 Hatchback (E87)
- 116i 1.6 (85 kW / 115 hp) (11/2003 - 06/2011)
- 118i 2.0 (95 kW / 129 hp) (07/2004 - 02/2007)
- 120i 2.0 (110 kW / 150 hp) (11/2003 - 06/2011)
- 3 Series
- 3 Saloon (E90)
- 316i 1.6 (85 kW / 116 hp) (09/2005 - 10/2011)
- 318i 2.0 (95 kW / 129 hp) (03/2005 - 08/2007)
- 320i 2.0 (110 kW / 150 hp) (06/2004 - 09/2007)
- 320si 2.0 (127 kW / 173 hp) (09/2005 - 08/2006)
- 3 Touring (E91)
- 318i 2.0 (95 kW / 129 hp) (01/2006 - 08/2007)
- 320i 2.0 (110 kW / 150 hp) (09/2005 - 06/2012)
- X Series
- X3 (E83)
- 2.0i (110 kW / 150 hp) (07/2005 - 08/2008)
- xDrive 20i 2.0 (110 kW / 150 hp) (09/2008 - 08/2011)
- Z Series
- Z4 Roadster (E85)
- 2.0i (110 kW / 150 hp) (03/2005 - 02/2009)
Compatibility check prior to dispatch
We will double check compatibility before shipping. Add your UK registration number or the last 7 of your VIN at checkout and our team will confirm the correct NGK 97085 O2 sensor for your vehicle and sensor position.
Professional fitting
Prefer expert installation. Book fitting with Nforcd in Warwickshire. Email Sales@nforcd.com for a quote and availability. We can remove seized sensors, code faults and road test after installation.
Common search terms
NGK lambda sensor 97085, NGK O2 sensor 97085, NGK OZA830-EE1, BMW oxygen sensor, BMW lambda probe, upstream O2 sensor, downstream O2 sensor, pre-cat O2 sensor, post-cat O2 sensor, 4 wire heated lambda sensor, BMW E90 oxygen sensor, BMW E87 lambda sensor, BMW 320i O2 sensor, BMW 118i oxygen sensor, BMW X3 E83 lambda probe, Z4 E85 O2 sensor.
Part numbers
- NGK Part Number: 97085
- NGK Reference: OZA830-EE1
Buy with confidence from Nforcd. Genuine NGK boxed part, performance-focused support and knowledgeable advice on BMW oxygen sensors and lambda probes.