Instructions. Compressor for vehicles with 4-cyl. engine and 6-cyl. The TDI engine can be removed and installed without opening the coolant lines. For vehicles with 6-cyhp an FSI petrol engine, the compressor can only be removed from the bracket after the refrigerant circuit has been opened. The following describes the removal and installation of the compressor for vehicles with 4-cyl. TDI engine and 6-cyl. TD1 engine with compressor "Denso" type "6 SEU 14". For vehicles with 4-cyl. engine or other compressor may be modified (Depending on the engine, it may be necessary to remove or loosen certain components). To remove it from the bracket, do not empty the refrigerant circuit, do not remove the hoses and coolant lines from the compressor. Do not loosen the coolant lines and the corresponding clamps. After removal, secure the compressor, e.g. with a wire, to the vehicle, do not hang it on the refrigerant lines. Before removing the serpentine belt, mark the direction of its movement using chalk or a felt-tip pen. Reversing the direction of movement of a previously used belt can lead to its breakage. Depending on the engine and export version, different compressors can be installed.
Removing the compressor from the bracket and installing (vehicles with 4-cyl. engine)
Turn off the ignition. Remove the front sound insulation. Mark the direction of rotation of the poly V-belt. Remove poly V-belt -A-. Disconnect el. plug -A-. Unscrew bolts -B- for compressor.
Remove the compressor and move it away from the engine, without bending or stretching the hoses. Attach the compressor to the vehicle (for example, wire) in such a way as not to bend or stretch the hoses. If you cannot move the compressor far enough from the engine, you will need to remove it completely.
Installation
Installation is in reverse order, in this case. It is necessary to check the position of both centering sleeves -A- in the bracket or in the compressor -B- before securing the compressor.
Instructions. Centering sleeves -A- come in a variety of designs (different length), select the desired version from the electronic spare parts catalog. Pay attention to the fit of the bushings -A- and the cleanliness of the contact surfaces. Incorrectly installed bushings, dirty or damaged contact surfaces -C- of the bracket or compressor can lead to misalignment of the compressor and engine. Misalignment during operation can lead to damage to the serpentine belt or compressor.
Tighten bolts -arrows- (tightening torque: 25 Nm). Connect plug connector -1- for air conditioning compressor control valve -N280-. Place the serpentine belt on the mechanic's serpentine belt pulley.
Instructions. After securing the compressor, check the routing of the refrigerant lines; they must be inserted into the brackets provided for this purpose (if available, depending on engine). Make sure that the coolant lines and the corresponding brackets are installed at a sufficient distance from other parts, while paying attention to the sufficient distance between the belt, bracket and belt pulley. Interrogate the fault memory of the control and display module, Climatronic control unit -J255- and delete any faults displayed.
Removing the compressor from the mount and installing (vehicles with 6-cyl. TDI engine)
Turn off the ignition. Remove the front sound insulation. Note the direction of rotation of the poly V-belt -A-.
To loosen the poly V-belt, move the tensioner using a Torx socket T 60 -T40087- in the -direction of the arrow-. Remove the poly V-belt from the compressor pulley and relieve the tensioner.
Unscrew the left bolt -1- and nut -3- and remove the longitudinal link -2-.
Disconnect the power steering vane pump from the bracket (sometimes not necessary on vehicles with a flexible pressure line to the pump), tilt it to the side and attach it, for example, with a wire to the engine. Do not bend or stretch the hoses to the pump. The pressure line to the vane pump is available in different designs (rigid or flexible). Disconnect el. plug -A-. Unscrew the bolts -B-compressor.
Remove the compressor and move it away from the engine, without bending or stretching the hoses. Attach the compressor to the vehicle (for example, wire) in such a way as not to bend or stretch the hoses.
Instructions. If you cannot move the compressor far enough from the engine, you will need to remove it completely. Depending on the engine variant, it may be additionally necessary to remove the panel from the vehicle and move it slightly forward (to free up some space).
Installation
Installation is in reverse order; before securing the compressor, check the position of both centering sleeves -A- in the bracket or in the compressor -B-.
Instructions. Centering sleeves -A- come in a variety of designs (different length), select the desired version from the electronic spare parts catalog. Ensure that the bushings -A- are seated correctly and that the contact surfaces are clean. Incorrectly installed bushings, dirty or damaged contact surfaces -C- of the bracket or compressor can lead to misalignment of the compressor and engine. Misalignment during operation can lead to damage to the serpentine belt or compressor.
Tighten bolts -arrows- (tightening torque: 25 Nm). Connect plug connector -1- for air conditioning compressor control valve -N280-. Place the poly V-belt on the poly V-belt pulley.
After securing the compressor, check the routing of the refrigerant lines; they must be inserted into the brackets provided for this purpose (if available, depending on engine). Make sure that the coolant lines and associated brackets are installed at a sufficient distance from other parts, while paying attention to the sufficient distance between the belt, bracket and belt pulley. Interrogate the fault memory of the control and display module, Climatronic control unit -J255- and delete any faults displayed.
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