Ford 2010 Transit Connect Owner's Manual page 229

2. Unlock the fuel filler door.
3. Carefully turn the filler cap
counterclockwise until it spins off.
4. Pull to remove the cap from the
fuel filler pipe.
5. To install the cap, align the tabs
on the cap with the notches on the
filler pipe.
6. Turn the filler cap clockwise 1/4
of a turn until it clicks at least once.
7. Lock the fuel filler door.
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford, Motorcraft or other certified fuel filler cap
is not used.
WARNING: The fuel system may be under pressure. If the fuel
filler cap is venting vapor or if you hear a hissing sound, wait
until it stops before completely removing the fuel filler cap. Otherwise,
fuel may spray out and injure you or others.
WARNING: If you do not use the proper fuel filler cap,
excessive vacuum in the fuel tank may damage the fuel system
or cause the fuel cap to disengage in a collision, which may result in
personal injury.
Maintenance and Specifications
229