The selected E90 320i reservoir is for the stated 2.0L N46 petrol sedan application. The package contains the tank, cap and level sensor; that inclusion does not establish that another E90 engine uses the same tank.
Keep the engine and original reference with the connection photographs. A black plastic housing or a 320i badge alone leaves important details unresolved.
Read the catalogue range accurately
The E90 N46 tank with cap and level sensor uses reference 17137640514. Its manufacturer catalogue build range is 02/2004–08/2007. That is a supply-range description, not a claim that every listed build was delivered in Australia.
Use the actual VIN, build month, sedan and N46 identification to check the vehicle in front of you. Other engines and diesel tanks need separate confirmation.
Compare the reservoir and its connections
Check the tank outline, filler neck, hose connections, mounting points and original sensor connection. Align the viewing direction before comparing a port that appears on a different side of a rotated image.
A sensor included in the package still needs the correct connection. Do not infer pin functions, warning-light behaviour or an unlisted cap-pressure value from the photograph.
Separate inclusions from service materials
The selected offer includes the cap and level sensor. Hoses, coolant and installation hardware are excluded. Have the workshop identify additional requirements for the diagnosed repair rather than treating the reservoir as a full cooling-system kit.
The supplied sensor is also not a diagnosis. A warning or level complaint should be assessed separately before deciding which component is required.
Provide a traceable fitment check
Send the VIN, build month, engine code, original reference and accessible photographs of the complete tank, hose outlets, mounts and sensor connection. The linked product page keeps the exact application and current availability. Use vehicle-specific service information for testing, filling and installation.
Prepared from application records and the linked product photographs. The featured workshop scene is an AI-generated editorial illustration. Information reviewed on 3 November 2026.