1 - Heating system wiring harness, carefully cut the insulation to remove, when installing, install new cable clamps in the same place; 2 - Heater body - upper and lower parts, connected with clamps; 3 - Additional resistor for the heating system fan "N24", with overheating fuse; 4 - Air inlet housing, with damper for fresh and circulated air, secured with clamps on the upper and lower parts of the housing; 5 - Seal, self-adhesive, before proceeding with assembly, remove any remaining glue from the housing with acetone to allow air to enter; 6 - Actuator motor for regulating the flap for fresh and circulated air "V154"; 7 - Holder, actuator motor for regulating the damper for fresh and circulated air "V154"; 8 - Fresh air intake fan "V2"; 9 - Fresh air intake fan holder "V2"; 10 - Filter cover; 11 - Dust and pollen filter; 12 - Adjusting device for air distributor housing flaps; 13 - Air distributor housing, lower part; 14 - Heating element of the additional resistive heater (ARH) "Z35"; 15 - Heat exchanger; 16 - The air distributor housing, the upper part, is connected to the lower part of the air distributor housing with brackets; 17 - Left support, forms a non-detachable part together with the central pipe, screwed to the heater and the support of the middle panel, tightening torque on the heater: 5 Nm, tightening torque on the support of the middle panel: 10 Nm; 18 - Mixing control device (temperature) dampers
Heating system connecting parts
1 - Screw for plastic material tightening torque: 1 Nm; 2 - Before removing the bracket, mark the position and location on the housing; when installing, ensure that the clamping part of the clamp enters the fixed position in the groove of the housing
Assembly diagram: heat exchanger, heating element of the additional resistive heater (PTC) "Z35"
1 - Lower part of the air distributor housing; 2 - Heating element of the additional resistive heater (ARH) "Z35", only on some vehicles, if the rotary control button of the heater control device is moved all the way to the "heat" position (microswitch), the element is regulated, depending on the outside air temperature, coolant temperature and alternator load, by the engine control unit and 2 relays in 3 stages; 3 - Heat exchanger, with a sticker for the supply and return lines, observe the correct position for assembly: the sticker is on top, the connections must be in the middle of the slot in the lower part of the air distributor housing; 4 - Sticker to indicate the supply and return lines, in the direction of vehicle movement: left - supply line, right - return line; 5 - Seal with holder; 6 - Seal in the mounting plate; 7 - O-ring seal, replace; 8 - Connecting pipe for heat exchanger, different types of execution; 9 - 20 Nm