See also:

Air cleaner element renewal (Every 24 000 miles or 2 Years)
Carburettor and Central Fuel Injection (CFI) models 1 To remove the air cleaner lid undo and remove the retaining screws or bolts on the top face of the lid (see illustrations). 34.1a Removing ...

Ford Sierra Service Manual
...

Hydraulic unit pump and motor (ABS) - removal and refitting
Note: New sealing washers must be used on the high pressure fluid hose banjo union, and a new O-ring must be used between the accumulator and the hydraulic unit on refitting. Caution: Refer to the ...