[335dxd]

[RobUK]

What's the point of the button, why doesn't the filler cap cover just lock/unlock with the central locking like other models? That little green cord doesn't look like it would stand up to more than a handful of uses.

[Chris1712]

The tank is pressurised and sealed so it needs to equalise the pressure before being opened (like a spaceship &#128539.

This makes it safe for the fuel to be stored in the tank for a long time, ie because you do lots of short electric only journeys.

[....,,,,..,,..]

As mentioned it is likely to pressurise the fuel tank, prevents water getting in.

All 3 series have the emergency green cord thing, that's nothing new.

Basically if anyone tries o circumvent the correct method, they jam the flap.. And?

[soness]

My fuel filler flap has already got stuck a few times and I have to pull that green cord from the trunk... Feels good on a brand new car