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Denso 234-5736 Air / Fuel Ratio Sensor - Upstream or Upstream Rear
| Brand | Denso 234-5736 |
|---|---|
| Position | Upstream and Upstream Rear |
| Wiring Harness Length | 14.96 |
| Sensor Type | Wide-band |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Grade Type | Standard replacement |
| Product line | Air / Fuel Ratio Sensor - OE Style |
| Fits | Audi · 14 vehicles |
OE-style replacement. Precision-built for exact replacement and a first-time fit.
Wide-band sensor. Delivers accurate air/fuel ratio monitoring for emission control systems.
Standard replacement. Made to meet strict OE standards for dependable performance.
Cross-references NTK 27052, 06L906262D and 06L906262F for the same application. See all 5.
Denso OE-Style Air/Fuel Ratio Sensor
Denso 234-5736 is a direct-fit wide-band air/fuel ratio sensor built to OE standards for accurate replacement and first-time fit. It is a specific-fit sensor with a 14.96-inch wiring harness and 5-wire design for select Audi applications.
This Denso Air / Fuel Ratio Sensor - OE Style line focuses on exact replacement fitment and consistent sensor construction, making it a practical choice for restoring proper upstream exhaust feedback on the vehicles listed below.
Key Features
- Wide-band air/fuel ratio sensor for precise exhaust mixture monitoring
- Specific-fit design for direct replacement installation
- 14.96-inch wiring harness length
- 5-wire standard replacement construction
- OE-style fit and form for select Audi A4, Audi A6, Audi A6 Quattro, and Audi A7 Sportback applications
- Part number 234-5736 for easy cross-reference
Detailed Description
Denso 234-5736 is engineered as an OE-style upstream air/fuel ratio sensor for select Audi models, including the Audi A4, Audi A6, Audi A6 Quattro, and Audi A7 Sportback. As a wide-band sensor, it provides the signal needed for engine management systems to monitor exhaust oxygen content and maintain proper air-fuel control. The Denso OE-style product line is built around exact replacement dimensions and tested to strict OE standards, helping ensure the sensor matches the original application and installs correctly the first time.
This part cross-references NTK 27052 for the same application.
What It Helps Address
- Check engine light related to air/fuel ratio sensor performance
- Rough idle caused by inaccurate upstream sensor readings
- Fuel mixture control issues affecting drivability
- Failed emissions testing tied to sensor faults
- Slow or inconsistent sensor response on select Audi A4 and Audi A6 applications
Installation Notes and Tips
Install this sensor in the upstream position only where listed in the fitment data. Confirm connector style, harness routing, and engine application before installation. For Audi A4, Audi A6, Audi A6 Quattro, and Audi A7 Sportback coverage, verify the exact model year and position match the vehicle before replacing the original sensor. Part number 234-5736 should be matched to the OE reference and vehicle application for proper fit.
Quality Assurance
Denso manufactures and tests this sensor to strict OE standards for direct replacement use. The OE-style design supports exact fitment and consistent replacement quality for the listed Audi applications.
- Fits 2017-2020 Audi A4, Upstream
- Fits 2016-2018 Audi A6, Upstream
- Fits 2016-2018 Audi A6 Quattro, Upstream
- Fits 2019 Audi A6 Quattro, Upstream Rear
- Fits 2020 Audi A6 Quattro, Upstream
- Fits 2021-2022 Audi A7 Sportback, Upstream
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2022 | Audi | A7 Sportback | Technik | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Audi | A7 Sportback | Technik | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Audi | A4 | Select | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Audi | A6 Quattro | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Audi | A4 | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Audi | A6 Quattro | Premium | Upstream Rear | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2018 | Audi | A4 | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2018 | Audi | A6 | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2018 | Audi | A6 Quattro | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2017 | Audi | A4 | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2017 | Audi | A6 | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2017 | Audi | A6 Quattro | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2016 | Audi | A6 | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2016 | Audi | A6 Quattro | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| No rows match your filter. | |||||