Used Ford Fiesta Door Lock Mechanism

The Mk6 Fiesta ran from 2002 to 2008 and the Mk7 from 2008 to 2017 (with a facelift in 2013), and these are distinct generations with different door and frame designs, so a direct swap across that boundary is unlikely to work. You should confirm compatibility with the breaker using both registration numbers before purchasing.

Yes, this matters — front door lock mechanisms differ between 3-door and 5-door Fiestas because the door apertures and internal geometry are not the same across body styles. Always tell the breaker whether your car is a 3-door or 5-door, and make sure the donor car matches.

Absolutely — the lock mechanism is side-specific, so a nearside (NS, passenger/left) part will not fit an offside (OS, driver/right) door and vice versa. In UK convention, the nearside is the left-hand side and the offside is the right-hand side (driver's side), so be clear about which door you need when contacting breakers.

Both sit within the Mk7 generation, so there is a reasonable chance of compatibility, but facelift updates can sometimes affect door hardware and fitment points. Name the boundary year and both registration plates to the breaker so they can confirm the donor part matches your specific car.

Trim level does not generally affect the fitment of a door lock mechanism — what matters is the generation, the body style (3-door or 5-door), and the side (NS or OS). You may find minor cosmetic differences on the door card or surrounding trim, but the lock mechanism itself is not trim-dependent, so a Zetec-sourced part should be mechanically compatible with a Titanium or ST-Line of the same generation and door configuration.

No — engine size and type have no bearing on door lock mechanism fitment for the Fiesta. What you need to match is the generation, the number of doors (3-door or 5-door), and the side (NS or OS); simply let the breaker know those details along with your registration number.