Heater matrix - removal and refitting

Removal
1 With the heater removed from the vehicle as previously described, extract the two securing screws and slide the matrix out of the heater casing.

2 If further dismantling is necessary, cut the casing seal at the casing joint, prise off any securing clips and separate the two halves of the casing.

3 Remove the air flap valves. It should be noted that the lever for the air distribution valve can only be removed when the mark on the lever is in alignment with the one on the gearwheel (see illustration).

12.3 Air distribution valve lever and gear marks (arrowed)
12.3 Air distribution valve lever and gear marks (arrowed)

4 If the heater matrix is leaking, it is best to obtain a new or reconditioned unit. Home repairs are seldom successful. A blocked matrix can sometimes be cleared using a cold water hose and reverse flushing, but avoid the use of searching chemical cleaners.

Refitting
5 Reassembly is a reversal of removal. Take care not to damage the fins or tubes of the matrix when inserting it into the casing. Refit the heater with reference to Section 11.

    See also:

    Door window regulator - removal and refitting
    Removal 1 Remove the door inner trim panel. 2 Where necessary for improved access, peel back the waterproof plastic sheet from the door. 3 Lower the window until the lower support channel is vis ...

    Carburettor (Pierburg 2V type) - fast idle speed adjustment
    1 Check the idle speed and mixture adjustment. The idle speed must be correct before attempting to check or adjust the fast idle speed. 2 With the engine at normal operating temperature, and a ta ...

    Loudspeakers - removal and refitting
    Facia mounted loudspeaker Removal 1 Carefully prise up the speaker grille using a small screwdriver. Lift it from the facia. 2 Extract the speaker mounting screws which are now exposed. 3 Lift t ...