Removal the heat shield
Unscrew the plastic screws "2" and remove the heat shield "1".
Installing a seal between the heater and the engine compartment
First insert the seal between heater "A" and the engine compartment into the partition and then place it on the heat exchanger.
Instructions: To prevent moisture from the engine compartment from penetrating into the passenger compartment, due attention must be paid to the installation of the seal.
Removal the supply fan "V2"
Removal of the supply fan "V2" is carried out from the side of the front passenger footwell. Remove the heat shield of the heater. Disconnect the connector "A" from the supply fan "V2". Unscrew the screw "B" (if any) on the housing of the supply fan "V2" (1 Nm). Unlock the lock "2" and, turning the fan "V2" in the direction of the "arrow", remove it.
Removal and installation of ballast resistance of supply fan with overheating protection "N₂4"
8WARNING: Beware of burns. The ballast resistor of the supply fan with overheating protection "N₂4" may be hot. Wait until the ballast resistor of the supply fan with overheating protection "N₂4" has cooled down before removing it.
Remove the heater heat shield. Disconnect connector "A" from the ballast resistor "N₂4". Press the clamp in the direction of the arrow and remove the ballast resistor of the supply fan with overheating protection "N₂4" from the heater housing.
Removal and installation the cabin filter (anti-dust and anti-allergenic)
Remove the footwell trim "1" on the front passenger side. Remove the heat shield "2" of the heater. Detach the cover "3" by sliding it in the direction of the arrow. Remove the filter from the heater downwards.
Installation is carried out in reverse order.
Instructions: Install the filter in the correct position.
Removal and installation deflectors on the driver and front passenger side
Instructions: The deflectors on both sides are removed in the same way. In order not to damage the front panel, use spacers under the tool when dismantling.
Disconnect the side window deflector "2" from the front panel "1". Using the wedge "3409", remove the deflector "3" from the front panel.
Removal and installation the left and right air ducts to the rear passenger footwell
Instructions: Removing the air ducts on both sides is done in the same way.
Remove the driver's seat or front passenger seat. Remove the center console. Lift the floor covering, disconnect the air duct from the floor and disconnect it from the heater.
Removal and installation the right footwell air duct
Remove the glove compartment. Unscrew bolt "2" (1.5±0.2 Nm) and remove the right air duct "1".
Removal and installation the left footwell air duct
Remove the driver's side footwell trim. Unscrew bolt "2" (1.5±0.2 Nm) and remove the left air duct "1".
Removal and installation of the heater and supply ventilation rotary control unit
Instructions: The rotary control unit consists of two separate parts. Before removing the unit, set the rotary controls to the following positions: heater control to "cold", fan control to "0", air flow direction "towards feet".
Remove the heater and air conditioning control panel trim. Unscrew screws "2" (4.2x45) and "3" (4.2x16) and remove the control unit "1" from the central console.
Tightening torque of screws "2" and "3": 1.5±0.2 Nm. Disconnect the connector lock "A" by sliding it in the direction of arrow "1". Press the connector lock "B" in the direction of "arrow 2" and remove connector "C". Disconnect the connector lock "D" and remove connector "D".
Instructions: The figure shows the version with "climatic system Climatic". Disconnection of connectors is carried out in the same way in all cases.
Connectors on the heater and supply ventilation control unit
The location of the contacts in the connectors on the rear wall of the heater and supply ventilation control unit (16-pin connector is not used).
5-pin connector, designated on the diagram as T5
- 1 - 3rd fan speed
- 2 - 2nd fan speed
- 3 - 1st fan speed
- 4 - 4th fan speed
- 5 - Terminal X
20-pin connector, designated on the diagram as T20c
- 3 - Actuating electric motor for supply ventilation and air recirculation dampers "V154"
- 6 - Actuating electric motor for supply ventilation and air recirculation dampers "V154"
- 7 - Additional air heater control unit "J604"
- 8 - Rear window
- 11 - Driver's seat heating control unit "J131"
- 15 - Front passenger seat heating control unit "J132"
- 16 - Terminal 75 for connecting seat heating (optional)
- 18 - Terminal 30
- 19 - Terminal 15
- 20 - Terminal 31
Removal and installation a flexible shaft to adjust the air flow distribution
Remove the radio. For cars without a radio, remove the central trim panel of the front panel. Remove the glove compartment. Bring the flexible shaft to the following position: rotate the air flow distribution regulator knob "1" until the attachment point of shaft "2" to the drive mechanism "3" becomes visible.
Remove the heater and fresh air ventilation rotary control unit. In the center console, unlock the lock by pressing it in the direction of the arrow. Remove the flexible shaft from adapter "2".
Instructions: When installing the flexible shaft, the adapter and the rotary controls of the heater and supply ventilation must be in a certain position. Otherwise, these controls will not work correctly.
Examination
Flexible shaft for controlling the air flaps. Turn on the maximum fan speed. If in the "defrost" position all the air is directed through the glass defrost deflectors and not into the footwell, the flexible shaft is installed correctly. Otherwise, disconnect the flexible shaft from the adapter. Connect the heater and fresh air controls to the adapter and turn the air distribution control knob 180°. Then reconnect the flexible shaft. Repeat the check.
Removal and installation the temperature control flap drive cable
Remove the heater and fresh air ventilation rotary control unit. In the center console, disconnect the fastening "1" of the track sheath "2" and remove the cable sheath from its seat. Disconnect the cable ball "3" from the drive lever "4".
Remove the driver's side footwell trim. Disconnect the cable from the temperature control flap "A" and from the heater "B".
Removal and installation of the actuator electric motor of the supply ventilation and recirculation flaps "V154"
Instructions: Changing the position of the recirculation flap is not permitted.
Remove the glove compartment. Remove cover "1". Disconnect the connector from the supply ventilation and recirculation actuator motor "V154" "2". Remove the electric motor "VI54" "2".
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