L007 Impianto climatizzazione funziona ma raffredda lentamente

	Test results
1	COMPONENT CONCERNED	COOLANT LEVEL CHECK AND CLIMATE CONTROL SYSTEM CIRCUIT PRESSURE CHECK		OK (NO FAULTS DETECTED)	FAULT DETECTED		OPERATION
	Climate control system circuit	Switch on the climate control system (with engine on) for 10-15 minutes. Switch it off and wait for 45 minutes. Connect the climate control system repressurising station and check that the readings of the pressure values are compatible with the vehicle specifications (if there are no specifications, refer to the table below)		Go to Step 2	The pressure values do not comply with the required specifications		Empty the circuit, create vacuum and restore the correct coolant pressurisation
		External temperature (ºC)	LP and HP with AC OFF (bar)
		20	4.5 - 5
		25	5.5 - 6
		30	6.5 - 7
		35	7.5 - 8
		40	˜ 9
2	COMPONENT CONCERNED	CLIMATE CONTROL SYSTEM CIRCUIT PARAMETER CHECK WITH PRESSURISING STATION			OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Climate control system circuit	Switch on the climate control system (with engine running at 1500 rpm) with the minimum fan speed and the lowest temperature. Connect the climate control system repressurising station to the climate control system circuit and check that the readings of the temperature and pressure values are correct.			End of diagnosis	Faults detected in the operation of the climate control system	Go to Step 3
		DeltaT (ºC)	Low Pressure (LP) (bar)	High Pressure (HP) (bar)
		>8	1-3	10-14
3	COMPONENT CONCERNED	CHECK OF THE CIRCUIT PRESSURE VALUES		OK (NO FAULTS DETECTED)		FAULT DETECTED	OPERATION
	Climate control system circuit	Check whether both pressures are low (LP<1 bar, HP<10 bar)		Go to Step 5		Pressure levels incorrect	Go to Step 4
4	COMPONENT CONCERNED	CONDENSER CIRCUIT SEEPAGE CHECK	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Condenser circuit	Check for the presence of seepage on the condenser or on its circuit, using the electronic detector or the UV kit for the leaks	End of diagnosis		Leaks in the condenser circuit		If possible, replace or repair the pipes Op. 5040A50 PIPE FROM AIR CONDITIONING COMPRESSOR TO CONDENSER - R+R or the condenser Op. 5040A40 AIR CONDITIONING CONDENSER - R.R.
5	COMPONENT CONCERNED	CHECK OF THE CIRCUIT PRESSURE VALUES	OK (NO FAULTS DETECTED)	FAULT DETECTED		OPERATION
	Climate control system circuit	Check whether only LP is low (LP=0-2 bar, HP=10-14 bar)	Go to Step 10	LP value is too low		Go to Step 6
6	COMPONENT CONCERNED	EXPANSION VALVE OPERATION CHECK	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Expansion valve	Check that the expansion valve is operating correctly and make sure that there are no obstructions	Go to Step 7		Expansion valve not operating correctly		Replace or restore the correct operation of the expansion valve Op. 5040B30 EXPANSION VALVE (ORIFICE TUBE) - R+R
7	COMPONENT CONCERNED	INTAKE DUCT OPERATION CHECK		OK (NO FAULTS DETECTED)		FAULT DETECTED	OPERATION
	Intake duct	Check that the intake duct is operating correctly and make sure that there are no obstructions		Go to Step 8		Incorrect operation of the intake duct	Replace or restore the correct operation of the intake duct Op. 5040C18 RECIRCULATION AIR INTAKE UNIT - R.R WITH AIR CONDITIONING CASING REMOVED
8	COMPONENT CONCERNED	POLLEN FILTER OPERATION CHECK		OK (NO FAULTS DETECTED)		FAULT DETECTED	OPERATION
	Pollen filter	Check the correct operation of the pollen filter		Go to Step 9		Pollen filter obstructed or not operating correctly	Replace the pollen filter Op. 5010B08 CLIMATE CONTROL OUTSIDE AIR PURIFYING (POLLEN) FILTER - R.R.
9	COMPONENT CONCERNED	CONDENSER OPERATION CHECK	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Capacitor	Check that the condenser is operating correctly	End of diagnosis		Condenser not working correctly		Replace the condenser Op. 5040A40
10	COMPONENT CONCERNED	CHECK OF THE CIRCUIT PRESSURE VALUES	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Climate control system circuit	Check whether both pressures are high (LP=3-6 bar, HP=14-20 bar)	Go to Step 14		Pressure values too high		Go to Step 11
11	COMPONENT CONCERNED	EMPTYING CHECK, CLEANING AND CIRCUIT RESTORING		OK (NO FAULTS DETECTED)		FAULT DETECTED	OPERATION
	Climate control system circuit	Check whether emptying and cleaning of the circuit and restoring of the correct levels of coolant have been carried out		Go to Step 12		The procedure has not been carried out yet	Empty and clean the circuit, then restore the correct levels of coolant
12	COMPONENT CONCERNED	EVAPORATOR OPERATION CHECK	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Evaporator	Check the correct operation of the evaporator, specifically check that it is not obstructed due too excessive oil	Go to Step 13		Evaporator not working correctly		Replace or restore the correct operation of the evaporator Op. 5040C64 A/C EVAPORATOR - R+R
13	COMPONENT CONCERNED	CONDENSER OPERATION CHECK	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Capacitor	Check the correct operation of the condenser, specifically check that it is not obstructed due too excessive oil	End of diagnosis		Condenser not working correctly		Replace or restore the correct operation of the condenser Op. 5040A40
14	COMPONENT CONCERNED	CHECK OF THE CIRCUIT PRESSURE VALUES	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Climate control system circuit	Check the pressure values, whether LP is too high (LP=3-6 bar) and HP is too low (HP=8-10 bar)	End of diagnosis		Pressure levels incorrect		Go to Step 15
15	COMPONENT CONCERNED	EXPANSION VALVE OPERATION CHECK	OK (NO FAULTS DETECTED)		FAULT DETECTED		OPERATION
	Expansion valve	Check the correct operation of expansion valve, specifically check whether it is stuck open	End of diagnosis		Expansion valve not operating correctly		Replace or restore the correct operation of the expansion valve Op. 5040B30