Genuine BMW 13-90-8-664-236 Fuel Tank Vent Hose Breather Line

The Genuine BMW 13-90-8-664-236 Fuel Tank Vent Hose (also referred to as the Fuel Tank Breather Line or Breath Line with Reservoir, designation R 135040) is a factory OEM replacement component for BMW's evaporative emissions (EVAP) system. This vent hose is a critical part of the fuel vapor management system, routing fuel vapors from the fuel tank to the charcoal canister and breather valve assembly, helping to control emissions and maintain proper fuel tank pressure.

Key Features:

• Genuine BMW OEM part — manufactured to exact factory specifications for fit, form, and function
• Direct replacement for the original fuel tank vent/breather line — no modification required
• Constructed from fuel-resistant materials engineered to withstand long-term exposure to fuel vapors and engine heat
• Integral component of the BMW EVAP system, helping prevent fuel vapor leaks and maintain emissions compliance
• Replaces cracked, brittle, or leaking OEM vent hoses that can trigger fuel smell, rough idle, or EVAP-related fault codes

OEM Part Number: 13-90-8-664-236 (also referenced as 13908664236). This is a factory Genuine BMW part backed by the BMW Parts & Accessories Limited Warranty, ensuring the quality and reliability expected from an original equipment component.