OE Quality
60-Day Returns

Denso 234-4522 Oxygen Sensor - Downstream
Overview of Denso OE Style Oxygen Sensor 234-4522
The Denso OE Style Oxygen Sensor 234-4522 is designed specifically for Mercedes-Benz ML450 and SLS AMG models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.
- Heated sensor type for faster activation and improved efficiency
- Specific fit for Mercedes-Benz ML450 and SLS AMG
- 28.23-inch wiring harness length for proper installation
- Four-wire configuration with female connector for secure connection
- Threaded mounting type with 0.708-inch thread diameter
Detailed Features and Specifications
The Denso 234-4522 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, reducing emissions during cold starts. Its specific fitment ensures compatibility with Mercedes-Benz ML450 and SLS AMG models, providing reliable sensor performance without modification. The sensor includes a 28.23-inch wiring harness, which offers sufficient length for proper routing and connection. Equipped with four wires and a female connector, this sensor integrates seamlessly with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter allows for secure and straightforward installation.
About the Denso OE Style Product Line
The OE Style line from Denso is engineered to meet original equipment specifications, providing a direct replacement for factory-installed parts. This product line focuses on delivering precise fitment and reliable function, making it suitable for vehicles requiring exact sensor performance. The 234-4522 oxygen sensor from the OE Style series maintains the standards expected by Mercedes-Benz vehicles, ensuring consistent emissions control and engine efficiency.
Common Applications and Problem Resolution
- Restores accurate oxygen sensing for proper air-fuel mixture adjustment
- Helps resolve check engine light issues related to oxygen sensor faults
- Improves fuel economy by providing correct emissions data
- Reduces harmful exhaust emissions by maintaining sensor accuracy
- Prevents engine performance problems caused by faulty oxygen sensors
Installation Notes and Tips
When installing the Denso 234-4522 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment. The threaded mounting requires proper torque to avoid damage or leaks. Verify the wiring harness length and connector type match the vehicle’s harness to ensure a secure connection. It is recommended to use anti-seize compound on the threads to facilitate future removal. Always follow manufacturer guidelines for sensor replacement procedures.
Quality Assurance and Warranty
Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability under normal operating conditions. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms related to part number 234-4522.
| Brand | Denso |
|---|---|
| Part Number | 234-4522 |
| Position | OE Style, Downstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 28.23 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2015 | Mercedes-Benz | SLS AMG | Downstream | OE Style |
| 2014 | Mercedes-Benz | SLS AMG | Downstream | OE Style |
| 2013 | Mercedes-Benz | SLS AMG | Downstream | OE Style |
| 2012 | Mercedes-Benz | SLS AMG | Downstream | OE Style |
| 2011 | Mercedes-Benz | ML450 | Downstream | OE Style |
| 2011 | Mercedes-Benz | SLS AMG | Downstream | OE Style |
| 2010 | Mercedes-Benz | ML450 | Downstream | OE Style |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.