Heater - dismantling and reassembly
1 Use a sharp knife to cut through the casing gaskets in line with the casing half-joint flanges.
Cut the heater casing seal gasket
2 Unclip and separate the half-casings.
Heater casing components
A Fan
B Half-casings
C Temperature control valve
D Air distributor valve
E Matrix
F Cover
3 Lift out the electric motor and fan unit.
4 If not already removed, unclip the retainers securing the matrix cover, withdraw the cover and lift the matrix from its heater case mounting.
5 The temperature and air distribution control valves can be removed by twisting them and pressing from the casing half.
6 Reassembly is a reversal of the removal procedure. When refitting the air distribution valve, rotate the operating lever so that the window and valve markings align. The valve can only be fitted in this position.
Align the marks (arrowed) when fitting the distribution valve