Air Guide In Air Distribution Housing
Air Guide In Air Distribution Housing
• To illustrate air guide in the air distribution housing, it is shown in the form of sectional views "A" -"A" and "B"- "B".
• On the Audi TT with A/C system, both motors for left and right temperature doors are controlled via one characteristics curve, depending on the programmed end stops (only one temperature setting on the Climatronic control module (J255) ).
• Depending on the measured temperatures, the calculated sunlight intensity and setting on Climatronic control module, the calculated specified outflow temperature and therefore, the specified position of the temperature doors, may be different for the left and right side.
• On the Audi TT with A/C (heating only), only one temperature door motor is installed. Both temperature doors for the left and right sides are connected via a shaft and moved together by the Left Temperature door Motor (V158).
• Vehicles without A/C do not have a temperature sensor. The outflow temperature is not controlled. The Left Temperature Door Motor (V158) is placed in a position calculated according to the temperature setting and the programmed motor stop values by the Climatronic control module.
1 Air Distribution Housing
2 Left Temperature Door (Driver Side)
• Shown in the cooling position
3 Air Duct To Center Instrument Panel Vents
• The air channel to the vent in the rear center console is always sealed with a sealing plug, there is no vent installed in the rear center console. Refer to=> [ Air Intake and Outlet Openings ] Air Intake and Outlet Openings.
4 Air Duct To Center Instrument Panel Vents
• The air channel to the vent in the rear center console is always sealed with a sealing plug, there is no vent installed in the rear center console. Refer to=> [ Air Intake and Outlet Openings ] Air Intake and Outlet Openings.
5 Right Temperature Door (Front Passenger Side)
• Shown in center position.
6 Left Footwell Door (Driver Side)
• Shown in closed position.
• Central doors (left, right and center) and both footwell doors are operated with each other via curved washers installed on control motor or on shaft.
7 Air Guide Channel In The Driver Side Footwell
8 Air Distribution Housing Sectioned Above Line "A"-"A"
9 Auxiliary Air Heater Heating Element (Z35)
• Only intended for vehicles with Diesel engine.
10 Heat Exchanger For Heater Unit
11 Air Outlet From Evaporator Housing
• Air inlet from heater air duct housing (on vehicles without A/C system).
12 Right Temperature Door (Front Passenger Side)
• Shown in center position.
13 Right Footwell Door (Front Passenger Side)
• Shown in closed position.
• Central doors (left, right and center) and both footwell doors are operated with each other via curved washers installed on control motor or on shaft.
14 Defroster Door
• Shown in closed position.
• From May 2007, an A/C air distribution housing with a defroster door in the air outlet to the defroster vents in the instrument panel without a side cut-out is gradually being installed. Refer to => [ A/C Air Distribution Housing Defroster Outlet Door ] A/C Air Distribution Housing Defroster Outlet Door. With the introduction of the door with the side cut-out, the Climatronic control module (J255) is changed. Refer to the Electronic Parts Catalog. Make sure the correct Climatronic control module installed and then check the adaptation using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding". On vehicles without A/C, the change to the door has no influence on the heater control (the door is controlled only by adjusting the Climatronic control module heater controls).
15 Air Distribution Housing Sectioned Above Line "B"-"B"
16 Central Door "Center"
• Shown in open position.
• Central doors (left, right and center) and both footwell doors are operated with each other via curved washers installed on control motor or on shaft.
17 Door In Air Guide Channel (To Vent In Rear Center Console)
• This door is non-functional in the Audi TT, the air guide channel (to the vent in rear center console) is always sealed with a sealing plug, there is no vent installed in the rear center console. Refer to=> [ Air Intake and Outlet Openings ] Air Intake and Outlet Openings.
• This door is operated via an actuating arm installed at center central door.
18 Air Guide Channel (To The Vent In The Rear Center Console)
• This air guide channel leading to the vent in the rear center console is always sealed with a sealing plug, there is no vent installed in the rear center console. Refer to => [ Air Intake and Outlet Openings ] Air Intake and Outlet Openings.