2009 LAMBORGHINI MURCIÉLAGO Service Repair Manual

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Compressor
The compressor is switched off by the system when the temperature inside the evaporator reaches values which
may lead to the formation of ice since this could affect the proper operation of the system.
7KHFRPSUHVVRUVZLWFKRIIWKUHVKROGLV¿[HGDWƒ&7KHFRPSUHVVRUZLOOEHVZLWFKHGRQDJDLQRQFHDWHPSHUDWXUHof 4 °C is reached.
The compressor will always be switched on in MAX-DEF mode and will automatically be switched off during normal operation under the following conditions: •fan off;
• HI system status.
An error concerning the frost sensor (short circuit or open circuit) will cause the compressor coupling disconnection. The compressor will be automatically restarted by the system when normal conditions are restored.
The compressor will be activated for a few seconds every 30 minutes to ensure lubrication also when it is off.

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In manual ventilation or distribution operation, the message MANUAL will appear on the display next to the
corresponding section. The meaning of the remaining information will be the same as in automatic operation. The manual recirculation selection is shown by the corresponding status indication. In manual settings it is important to remember that: •0DQXDO YHQWLODWLRQ selection will always have priority over automatic operation. The message MANUAL will
appear on the display over the air distribution indication.
• Recirculation will be switched on whenever the user presses the related button. In any case, the recirculation
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• The compressor will be switched off when the AUTO button is pressed. In this case, the message ECON
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temperature. The ECON message will disappear when the AUTO button is pressed again to indicate that the
compressor is operating automatically. The compressor will be operated in any case for a few seconds every
30 minutes to ensure lubrication also when it is off.
• TheMAX-DEF mode, switched on by holding the DEF button pressed for two seconds, is used to demist the
windscreen. The following conditions are established when the function is on: • compressor on;
•  '()DLUÀRZGLVWULEXWLRQ
• recirculation open;
• maximum fan speed.
The air temperature at the vents is set to the maximum if the outside temperature is lower than 15 °C.
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buttons.

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,QQRUPDOFRQGLWLRQVWKHWHPSHUDWXUHVRXWVLGHDQGUHTXHVWHGDUHVKRZQLQ&HOVLXVGHJUHHV The display can be switched to Fahrenheit degrees at any time as follows: • +ROGWKHRXWVLGHWHPSHUDWXUHGLVSOD\UHTXHVWEXWWRQSUHVVHGIRUDSSUR[LPDWHO\VL[VHFRQGV$IWHUWKLVWLPHWKH
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• Power down the system by turning the ignition key to OFF;
• Power up the system by turning the ignition key to ON.
7KHFRQWUROXQLWZLOOGLVSOD\WKHRXWVLGHDQGUHTXHVWHGWHPSHUDWXUHVLQ)DKUHQKHLW The reverse procedure is possible at any time according to the same method.

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Check the following fundamental aspects to prevent malfunctioning and ensure the correct system operation: •Keep the climate control system control unit away from sources of high heat, e.g. in a painting oven (remember
that it is good practice to remove all electronic control units from the vehicle in this case);
• Remember to disconnect the negative battery terminal and all the electronic modules before performing
electrical welding operations on the vehicle (injection-ignition control unit, coil power modules, climate control / air conditioning system control unit, etc.);
• Do not apply voltage higher than or different from the vehicle battery voltage, e.g. when jump starting using an
auxiliary battery make sure that the voltage is the same and the connection polarity is correct;
• Always ensure the utmost cleanliness during coolant circuit maintenance operations. This is because particles
of dirt could obstruct the coolant passage through the expansion valve and cause poor system operation;
• Store receiver-driers in a dry place to ensure long life;
• Regularly check the conditions, alignment and tension of the compressor drive belt. Furthermore, check the
compressor oil level;
• Make sure that there are no leaks from the heating or air conditioning system;
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• Check that the electrical connections of the various components and the system wiring are in good condition
(sensors, climate control unit, compressor, etc.);
• Always make sure that the coolant has been drained and collected in a suitable device before disconnecting
any line.

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A. air conditioner disassembly
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A. air conditioner disassembly 3UHOLPLQDU\RSHUDWLRQV •
Disassemble the silencer safety grid (025103).
Air conditioner disassembly
1. Drain the Freon from the air conditioning system and disconnect the delivery and intake hoses from the
compressor.
2. Remove the delivery ( A-Fig.1) and intake pipe mounting clamps on the water pump and remove the pipes ( B-
Fig.1 ).
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Position a container under the vehicle to collect the coolant.
3.
Remove the rear cross member, unscrewing the 4 screws( C-Fig.2 )of the two inner sides.

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6.
Remove the 4 screws ( F-Fig.4) securing the power steering pump frame, air conditioning system compressor
and alternator ( G-Fig.4); remove the frame without damaging the pipes.
4. Remove the auxiliary belt (010103).
5. Remove the three screws ( ')LJ) that secure the heat-proof screen ( ()LJ) to the lower support.
7. Remove the 6 screws (
H-Fig.5) that secure the compressor ( I-Fig.5) to the support; then remove the compressor
and the pulley.

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Open the front bonnet.
• Manually remove the safety grids ( A-Fig.6) on either side of the luggage compartment.
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A. Air conditioner assembly
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A. Air conditioner assembly
1.
Position the compressor ( A-Fig.1) and secure it onto the support using the 6 screws ( B-Fig.1).
Screw attachment: tightening torque (000800-6c).
2. Position the power steering pump frame, air condition system compressor and alternator ( C-Fig.2) and secure
it using the 4 screws ( D-Fig.2), without damaging the pipes.
Screw attachment: tightening torque (000800-6d).
3. Install the auxiliary belt (010105).