See also:

Radiator fan - removal and refitting
All models except RS Turbo Removal 1 Disconnect the battery negative terminal. 2 Disconnect the wiring plug at the fan motor and unclip the wiring from the shroud. 3 On pre-1986 models the fan sh ...

Sump - removal and refitting
Warning: A new sump gasket will be required on refitting, and suitable sealing compound will be required to coat the sump and cylinder block mating faces. Shims may be required when mating the e ...

Ford Sierra Service Manual
...