This Bosch rear oxygen sensor (part 13823) is designed for the Audi A8 with 4.2L or 3.7L V8 engines from 1997 to 1999 (D2 generation). It monitors exhaust oxygen content to optimize air-fuel mixture, improving fuel economy and reducing emissions. As a direct plug-in replacement, it installs easily without modifications.
Key Features & Benefits
- Heated Sensor: Reaches operating temperature quickly for accurate readings at startup.
- Direct Fit: Plugs directly into factory connector – no cutting or splicing required.
- OEM Quality: Manufactured to Bosch specifications for reliable performance.
- Steel Construction: Durable housing.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Audi | A8 Quattro | 1997–1999 | 4.2V8 |
| Audi | A8 | 1997–1999 | 3.7V8 |
Technical Specifications
| Part Number | 13823 |
| Type | Rear Oxygen Sensor |
Installation Notes
Direct plug-in replacement ensures easy installation.
About Bosch
Bosch is a global leader in automotive technology, supplying OE sensors to many manufacturers.
This part also goes by the following cross reference.
Cross Reference Part Number:
Fits These Vehicles
| Make | Model | Engine | Years |
|---|---|---|---|
| Audi | A8 Quattro | 4.2V8 | 1997–1999 |
| Audi | A8 | 3.7V8 | 1997–1999 |