URO 16-13-7-333-301 Fuel Vapor Detection Pump Leak Diagnostic Pump EVAP

The URO 16-13-7-333-301 Fuel Vapor Detection Pump — also known as the Leak Diagnostic Pump or EVAP Leak Detection Pump — is a direct-fit replacement component for the evaporative emissions (EVAP) system. This part is manufactured to OEM specifications, ensuring a precise fit and reliable performance as a replacement for the original BMW unit.

The EVAP leak detection pump plays a critical role in your vehicle's emissions control system. It pressurizes the fuel tank and EVAP canister circuit, then monitors whether system pressure holds steady or drops over time — allowing the vehicle's onboard diagnostic computer to detect even very small fuel vapor leaks. When a leak is identified, the system triggers the Check Engine light and stores a relevant EVAP fault code (typically in the P0440–P0457 range).

Key Features:

• Direct OEM replacement for BMW fuel vapor leak detection / leak diagnostic pump
• Replaces BMW OEM part number 16137333301 (also referenced as 16-13-7-333-301 and 16.13.7.333.301)
• Pressurizes the EVAP system to detect small vapor leaks that would otherwise go undetected
• Communicates with the vehicle's ECU to locate and flag emissions system faults
• Helps maintain compliance with federal evaporative emissions regulations
• Restores proper EVAP system function, clearing related Check Engine light codes

A failing fuel vapor detection pump can result in a Check Engine light, EVAP-related fault codes, fuel odor near the vehicle, rough idle, or a failed emissions test. Replacing this pump with the URO 16-13-7-333-301 restores proper EVAP system integrity and ensures continued emissions compliance.