AR83.25-P-1000MCC | Remove/install heater housing | 14.3.12 |
MODEL 451.3 /4 (except 451.39 /49) except CODE (I01) Air conditioning Plus
P83.25-2297-07
1 Snap clamp
2 Coolant hose
P83.25-2321-09
1 Snap clamp
2 Coolant hose
3 Heater housing
4 Nuts
14 Vertical strut
X85/10 Heating or air conditioning connector
5 Screw
6 Retaining clip
7 Wiring harness
8 Cover
P83.25-2299-05
3 Heater housing
9 Electrical connector
10 Electrical connector
11 Fresh air box
12 Heat exchanger
13 Wiring harness
M2 Blower motor
R14 Blower motor series resistor group
| Remove/install | ||
1 | Remove front CBS | ||
2 | Drain coolant | Engine 132.9 | |
Engine 660.9 | |||
3 | Release click clamps (1) on coolant hoses (2) and then remove | ||
4 | Remove crossmember below dashboard | Left-hand drive vehicles | |
Right-hand drive vehicles | |||
5 | Disconnect heater or AC connector (X85/10) | ||
6.1 | Place right front floor covering in area of heater housing (3) to one side | On left-hand drive vehicles | |
6.2 | Place left front floor covering in area of heater housing (3) to one side | On right-hand drive vehicles | |
7 | Disconnect all electrical connections on PTC heater booster | On Engine 660.9 | |
Remove PTC heater booster completely when replacing heater housing (3). | |||
8 | Unclip retaining clip (6) of electrical wiring harness (7) on heater housing (3) | ||
9 | Remove bolt in lower area on vertical strut (14) and place vertical strut (14) to one side | On right-hand drive vehicles | |
| |||
10 | Disconnect electrical connector on accelerator pedal sensor and expose wiring harness of accelerator pedal sensor | On right-hand drive vehicles | |
11 | Place left front floor covering in area of heater housing (3) to one side | On left-hand drive vehicles | |
12 | Unscrew nuts (4) on heater housing (3) | ||
13 | Remove heater housing (3) from firewall and route to the rear until the coolant hoses (2) are accessible | ||
14 | Detach coolant hoses (2) | Make sure that the interior is not soiled by overflowing coolant. Otherwise soiled parts must be cleaned or replaced. | |
Note installation position of coolant hoses (2). | |||
Installation: Position click clamps (1) on coolant hoses (2), slide coolant hoses (2) onto connections on heater housing (3) and fasten click clamps (1) in place. | |||
Position openings of click clamps (1) so that they point upwards or to the right. Otherwise they might chafe against coolant hoses (2) and cause damage. | |||
15 | Remove heater housing (3) from vehicle | Make sure that the interior is not soiled by overflowing coolant. Otherwise soiled parts must be cleaned or replaced. | |
16 | Detach fresh air case (11) from the heater housing (3) by turning and remove | When replacing the heater housing (3). | |
On right-hand drive vehicles, a spacer is located between the heater housing (3) and the fresh air housing (11), which is released from the heater housing (3) by twisting the fresh air housing (11). | |||
17 | Detach electrical connector (9), release lock and detach blower motor (M2) by turning it counterclockwise and then remove from the heater housing (3) | When replacing the heater housing (3). | |
18 | Detach electrical connector (10) and release series resistor group for blower motor (R14) by turning it clockwise and then remove from the heater housing (3) | When replacing the heater housing (3). | |
19 | Expose electrical wiring harness (13) on heater housing (3) and remove | When replacing the heater housing (3). | |
20 | Remove screw/bolt (5) and remove cover (8) | When replacing the heater housing (3). | |
21 | Pull heat exchanger (12) out of heater housing (3) | When replacing the heater housing (3). | |
22 | Install in the reverse order |
Front end assembly with front reinforcement