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Denso 234-5034 Air / Fuel Ratio Sensor - Upstream or Upstream Right
| Brand | Denso 234-5034 |
|---|---|
| Position | Upstream |
| Connector Gender | Male |
| Grade Type | Regular |
| Sensor Type | Heated |
| Thread Diameter | 0.711 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Wiring Harness Length | 21.02 |
| Product line | OE Style |
| Fits | Audi, Porsche, and Volkswagen · 45 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps deliver accurate air-fuel ratio readings.
Specific fit. Made to match the part requirements precisely.
Cross-references Bosch 17148, Bosch 17169 and NTK 24348 for the same application. See all 12.
Denso OE Style Air/Fuel Ratio Sensor
The Denso 234-5034 air/fuel ratio sensor is a specific-fit, heated replacement sensor built to OE-style standards for accurate signal response and a first-time fit. It is used on select Audi, Porsche, and Volkswagen applications, including Audi R8, Audi Q3, Porsche Cayenne, and Volkswagen Tiguan models.
Denso’s OE Style line focuses on direct replacement parts that match the original sensor’s fit and function, helping simplify diagnosis and replacement on emissions systems that depend on precise air/fuel feedback.
- Heated air/fuel ratio sensor for faster operating response
- Specific-fit design for direct replacement applications
- 5-wire configuration with male connector
- Wiring harness length: 21.02
- Thread diameter: 0.711
- OE Style construction for accurate fit and sensor placement
Fitment Details
- Fits 2021-2023 Audi R8, Upstream
- Fits 2020 Audi R8, Upstream
- Fits 2018 Audi R8, Upstream
- Fits 2015-2018 Audi Q3, Upstream
- Fits 2015-2018 Audi Q3 Quattro, Upstream
- Fits 2011-2018 Porsche Cayenne, Upstream Right
- Fits 2015 Porsche Cayenne, Upstream
- Fits 2012-2013 Porsche Panamera, Upstream Right
- Fits 2015-2016 Porsche Panamera, Upstream Right
- Fits 2009-2017 Volkswagen Tiguan, Upstream
- Fits 2017-2018 Volkswagen Tiguan Limited, Upstream
What This Sensor Helps Address
- Check engine lights related to air/fuel ratio sensor performance
- Rough idle or drivability issues caused by incorrect mixture feedback
- Fuel trim faults from a slow or inaccurate upstream sensor
- Emissions test failures tied to sensor response problems
- Replacement needs after sensor aging, contamination, or electrical failure
Installation Notes
Confirm the upstream sensor location and connector style before installation. This Denso 234-5034 sensor is a specific-fit replacement, so matching the vehicle application and position is important for proper operation. For best results, inspect the harness routing, connector condition, and exhaust thread condition during service.
This part cross-references Bosch (e.g., 17148, 17169) for the same application.
Quality Assurance
Denso manufactures and tests this OE Style air/fuel ratio sensor to strict original-equipment standards. The sensor is precision-built for exact replacement fitment and consistent performance on supported Audi, Porsche, and Volkswagen applications.
| Year | Make | Model | Submodel | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2023 | Audi | R8 | — | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Audi | R8 | — | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Audi | R8 | — | — | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Audi | R8 | — | — | Upstream | OE Style |
| 2018 | Audi | Q3 | — | — | Upstream | OE Style |
| 2018 | Audi | Q3 Quattro | — | — | Upstream | OE Style |
| 2018 | Audi | R8 | — | — | Upstream | Cylinder 1, 2, 3, 4, 5, 6, 7. 8, 9, 10; OE Style |
| 2018 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2018 | Volkswagen | Tiguan Limited | — | — | Upstream | OE Style |
| 2017 | Audi | Q3 | — | — | Upstream | OE Style |
| 2017 | Audi | Q3 Quattro | — | — | Upstream | OE Style |
| 2017 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2017 | Volkswagen | Tiguan | Wolfsburg Edition | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan | Trendline | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan | Sport | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan | SEL | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan | S | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan | Highline | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan | Comfortline | — | Upstream | OE Style |
| 2017 | Volkswagen | Tiguan Limited | — | — | Upstream | OE Style |
| 2016 | Audi | Q3 | — | — | Upstream | OE Style |
| 2016 | Audi | Q3 Quattro | — | — | Upstream | OE Style |
| 2016 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2016 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2016 | Porsche | Panamera | — | ELECTRIC/GAS | Upstream Right | OE Style |
| 2016 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2015 | Audi | Q3 | — | — | Upstream | OE Style |
| 2015 | Audi | Q3 Quattro | — | — | Upstream | OE Style |
| 2015 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2015 | Porsche | Cayenne | Diesel | — | Upstream | OE Style |
| 2015 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2015 | Porsche | Panamera | — | ELECTRIC/GAS | Upstream Right | OE Style |
| 2015 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2014 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2014 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2013 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2013 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2013 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2012 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2012 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2012 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2011 | Porsche | Cayenne | — | — | Upstream Right | OE Style |
| 2011 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2010 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| 2009 | Volkswagen | Tiguan | — | — | Upstream | OE Style |
| No rows match your filter. | ||||||