how can i fix my ford mondeo tdci?

Good grief, no its not a fault connector.

Short answer, you cannot fix it. The glowplug light is a catchall for various faults on this engine.

It could be anything from a faulty sensor to a knackered injector.

It needs to be put on a diagnostic tester at a dealer

the welshman
June 2006

your glow plug relay timer may be gone looes wire

eamoon
January 2005