Elements of the ventilation and heating system 1. Side deflector of the side window ventilation system 2. Dashboard assembly 3. Ventilation deflector for windshield defrosting 4. Intermediate part of the windshield defroster air duct 5. Intermediate part of the air...
Heating system module — general view 1. Fresh air blower resistor 2. Fresh air/recirculation air damper servo motor 3. Fresh air blower 4. Cabin filter 5. Flexible shaft (left - to select the position of the temperature control damper, right - to select...
Air ducts — removal and installation Removal and installation of an air duct of a zone of legs from the driver's side 1. Remove the cover under the dashboard on the driver's side. 2. Unscrew the fastening screw (2), shown in the figure below, and then...
Heating and ventilation control controller — removal and installation Removing 1. Turn off the ignition and all consumers of electricity. Then remove the key from the ignition. 2. Carefully detach from the dashboard and remove the decorative frame of the central control panel (1), as...
Flexible shafts — removal and installation Removing 1. Turn off the ignition and all electrical consumers of the car. 2. Remove the block of controllers for controlling the heating and ventilation system (for details, see the relevant section in this chapter)....
Cabin filter — removal and installation Note. The cabin air filter can be replaced without removing and installing any interior trim panels. The filter and mounting frame form one spare part and are replaced as a unit. Removing 1. Move the latches (1) as far...
Heating system heat exchanger — removal and installation Removing Attention. The coolant temperature can reach 100°C when the engine is warm! The cooling system is pressurized and there is a risk of serious injury if the work is not carried out carefully. Wait until the...
Elements of the air conditioning system — general view 1. Expansion valve 2. Exhaust valve 3. Ambient temperature sensor 4. Container with desiccant cartridge 5. Capacitor 6. Air conditioning compressor control valve 7. Air conditioning compressor 8. Filling valve
Draining the lubricating oil of the air conditioning compressor Note. Draining and measuring the amount of lubricating oil of the air conditioning compressor is possible only after the latter has been removed from the vehicle. 1. Drain the lube oil from the inlet and drain port into...
General precautions for working with the air conditioning system General Refrigerant Handling Precautions 1. R-134a refrigerant is highly volatile. Contact with a drop of refrigerant on the skin can cause local frostbite. Gloves must be worn when working with refrigerant. 2. Use...
Finding a leak in the refrigerant circuit with compressed air or nitrogen Note. Relatively large leaks can be found, for example, by introducing purified and dried compressed air or nitrogen into the refrigerant circuit at a pressure of no more than 15 bar. If the leak is large enough, the...
Finding leaks in the refrigerant circuit with leak detector -VAG 1796- Note. Minor leaks can be detected, for example, with an electronic detector. 1. Evacuate the refrigerant circuit using an air conditioner service stand. Note. If a relatively large leak is already detected during...
Purge the refrigerant circuit Note. For vehicles where it is not possible to connect adapters to the refrigerant pipes, use eg an air gun with a rubber nozzle to purge individual components. In this case, you must be very careful not to damage (do...