Ford Sierra Manual

Air cleaner - removal and refitting
Fuel and exhaust systems - fuel injection / Air cleaner - removal and refitting


2.0 litre SOHC models 1 Disconnect the battery negative lead.

2 Depress the locking clip on the airflow meter wiring plug and disconnect the plug.

Pull on the plug, not the wiring.

3 Loosen the securing clip and disconnect the air inlet hose from the airflow meter.

4 Release the four securing clips and lift off the air cleaner lid with the airflow meter.

5 Remove the left-hand front wheel arch liner.

6 Working under the wheel arch, unscrew the three air cleaner securing nuts and washers.

7 Disconnect the air inlet tube, and withdraw the air cleaner from the engine compartment.

8 Refitting is a reversal of removal.

2.0 litre DOHC models
9 Disconnect the battery negative lead.

10 Disconnect the wiring plug from the idle speed control valve at the front of the plenum chamber.

11 Loosen the clamp, and detach the air inlet hose from the air inlet tubing.

12 Unscrew the securing nut, and release the air inlet tube from the bracket on the engine compartment front panel.

13 Release the air cleaner lid securing clips, then lift away the air inlet tube, plenum chamber and air cleaner lid as an assembly, disconnecting the breather hose from the air inlet tube.

14 Lift out the air cleaner element then wipe the inside of the air cleaner lid and casing clean.

15 Remove the left-hand front wheel arch liner.

16 Working under the wheel arch, unscrew the three air cleaner securing nuts and washers.

17 Disconnect the air inlet tube, and withdraw the air cleaner from the engine compartment.

18 Refitting is a reversal of removal.

1.6 and 1.8 litre (R6A type) CVH models
1.6 litre
19 Remove the screws from the top of the air cleaner cover.

20 Disconnect the cold air inlet hose from the air cleaner spout or the inlet on the front body panel. The hose is secured by toggle clips.

21 Disconnect the hot air inlet hose from the air cleaner spout or the hot air shroud on the exhaust manifold.

22 Where applicable, remove the screw securing the air cleaner body to the camshaft cover.

23 Withdraw the air cleaner and disconnect the breather hose from the camshaft cover.

24 Refitting is a reversal of removal, ensure the disturbed hoses are securely connected.

1.8 litre
25 Undo the two nuts, lift off the air cleaner cover, and remove the element.

26 Disconnect the engine breather hose and the oil separator hose, then undo the three nuts and lift up the air cleaner casing (see illustrations).

3.26a Air cleaner cover and hose attachments - 1.8 litre (R6A) CVH
3.26a Air cleaner cover and hose attachments - 1.8 litre (R6A) CVH

A Cover retaining nuts B Engine breather hose
C Oil separator hose

3.26b Air cleaner casing attachments - 1.8 litre (R6A) CVH
3.26b Air cleaner casing attachments - 1.8 litre (R6A) CVH

A Casing retaining nuts (arrowed) B Vacuum hose (arrowed)

27 Disconnect the yellow striped vacuum hose from the underside of the casing, detach the air inlet hose, and remove the air cleaner assembly.

28 Refitting is a reversal of removal, ensuring all hoses are correctly attached.


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