Fuel pump unit installation note

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

After installing the fuel pump unit, verify by hand that the packing is installed correctly all the way around without any slippage.

Fig 1: Cross Section View Of Fuel Pump Unit

Courtesy of MAZDA MOTORS CORP.