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Spectra OS5018 Oxygen Sensor - Upstream, Upstream Left or Upstream Right
Reliable Oxygen Sensor for BMW 318is, 325i, 325is, 325iX, and 850CSi
The Spectra OS5018 oxygen sensor is designed to provide accurate emissions monitoring for select BMW models. This sensor helps maintain optimal engine performance and ensures compliance with emission standards.
- Compatible with BMW 318is, 325i, 325is, 325iX, and 850CSi models
- Part number OS5018 for precise identification
- Monitors oxygen levels in exhaust gases for efficient fuel management
- Durable construction for consistent sensor performance
- Direct replacement sensor for emission control systems
Product Details and Functionality
The Spectra OS5018 oxygen sensor plays a critical role in the emission control system by measuring the oxygen content in the exhaust stream. This data is sent to the engine control unit (ECU) to adjust the air-fuel mixture, improving combustion efficiency and reducing harmful emissions. Designed specifically for BMW 318is, 325i, 325is, 325iX, and 850CSi vehicles, this sensor ensures compatibility and reliable operation within the factory emission system.
Common Applications and Issues Addressed
- Helps resolve rough idling and engine hesitation
- Reduces increased fuel consumption caused by faulty sensors
- Prevents failed emissions tests due to inaccurate oxygen readings
- Addresses check engine light triggers related to oxygen sensor faults
- Supports smoother engine performance and reduced exhaust emissions
Installation Notes and Tips
When installing the Spectra OS5018 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the sensor wiring. Verify the sensor connector matches the vehicle harness for a secure fit. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.
Quality Assurance and Warranty
Spectra oxygen sensors are manufactured to meet OEM specifications for fit and function. While specific warranty details are not provided, Spectra products typically undergo quality control testing to ensure durability and performance in emission control applications.
This part fits 19 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1995 | BMW | 850CSi | 5.6L | V12 | Upstream Right | ||
| 1995 | BMW | 850CSi | 5.6L | V12 | Upstream Left | ||
| 1994 | BMW | 850CSi | 5.6L | V12 | Upstream Right | ||
| 1994 | BMW | 850CSi | 5.6L | V12 | Upstream Left | ||
| 1993 | BMW | 325i | 2.5L | L6 | Upstream | ||
| 1992 | BMW | 318is | Coupe | 1.8L | L4 | Upstream | To Sep/1992 |
| 1992 | BMW | 325i | 2.5L | L6 | Upstream | ||
| 1991 | BMW | 325i | 2.5L | L6 | Upstream | ||
| 1991 | BMW | 325is | 2.5L | L6 | Upstream | ||
| 1991 | BMW | 325iX | 2.5L | L6 | Upstream | ||
| 1990 | BMW | 325i | 2.5L | L6 | Upstream | ||
| 1990 | BMW | 325is | 2.5L | L6 | Upstream | ||
| 1990 | BMW | 325iX | 2.5L | L6 | Upstream | ||
| 1989 | BMW | 325i | 2.5L | L6 | Upstream | ||
| 1989 | BMW | 325is | 2.5L | L6 | Upstream | ||
| 1989 | BMW | 325iX | 2.5L | L6 | Upstream | ||
| 1988 | BMW | 325i | 2.5L | L6 | Upstream | From Sep/1987 | |
| 1988 | BMW | 325is | 2.5L | L6 | Upstream | From Sep/1987 | |
| 1988 | BMW | 325iX | 2.5L | L6 | Upstream | From Sep/1987 |
* 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.