2006 NISSAN VERSA oil

MTC-14
PREPARATION
Revision: June 20062007 Versa
—
(J-43872)
Refrigerant dye cleanerFor cleaning dye spills.
—
(J-39183-C)
Manifold gauge set (with hoses
and couplers)Identification:

The gauge face indicates R-134a.
Fitting size: Thread size

1/2”-16 ACME
Service hoses:

(J-39500-72B)
High side hose

(J-39500-72R)
Low side hose

(J-39500-72Y)
Utility hoseHose colors:

Low side hose: Blue with black stripe

High side hose: Red with black stripe

Utility hose: Yellow with black stripe
or green with black stripe
Hose fitting to gauge:

1/2”-16 ACME
Service couplers:

(J-39500-20A)
High side coupler

(J-39500-24A)
Low side couplerHose fitting to service hose:

M14 x 1.5 fitting is optional or perma-
nently attached.
—
(J-39699)
Refrigerant weight scaleFor measuring of refrigerant
Fitting size - thread size:

1/2” - 16 ACME
—
(J-39649)
Vacuum pump
(Including the isolator valve)Capacity:

Air displacement: 4 CFM

Micron rating: 20 microns

Oil capacity: 482 g (17 oz)
Fitting size: Thread size

1/2”-16 ACME Tool number
(Kent-Moore No.)
Tool nameDescription
SHA441F
RJIA0196E
S-NT201
S-NT202
S-NT200
S-NT203

MTC-18
OIL
Revision: June 20062007 Versa
OILPFP:KLG00
Maintenance of Oil Quantity in CompressorEJS00579
The oil in the compressor circulates through the system with the refrigerant. Add oil to compressor when
replacing any component or after a large refrigerant leakage occurred. It is important to maintain the specified
amount.
If oil quantity is not maintained properly, the following malfunctions may result:

Lack of oil: May lead to a seized compressor.

Excessive oil: Inadequate cooling (thermal exchange interference)
OIL
OIL RETURN OPERATION
Adjust the oil quantity according to the test group shown below.
1. CHECK OIL RETURN OPERATION
Can oil return operation be performed?

A/C system works properly.

There is no evidence of a large amount of oil leakage.
CAUTION:
If excessive oil leakage is noted, do not perform the oil return operation.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. PERFORM OIL RETURN OPERATION, PROCEEDING AS FOLLOWS
1. Start engine, and set the following conditions:
–Engine speed: Idling to 1,200 rpm
–A/C blower switch: ON
–Blower speed: Max. position
–Temp. control: Optional [Set so that intake air temperature is 25° to 30°C (77° to 86° F)].
–Intake position: Recirculation (REC)
2. Perform oil return operation for about 10 minutes.
3. Stop engine.
>> GO TO 3.
3. CHECK REPLACEMENT PART
Should the compressor be replaced?
YES >> GO TO MTC-19, "OIL ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT" .
NO >> GO TO MTC-19, "
OIL ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT
EXCEPT COMPRESSOR" . TYPE 1 Compressor (CR-10) : NISSAN A/C System Oil Type R
TYPE 2 Compressor (CSV511) : NISSAN A/C System Oil Type S

OIL
MTC-19
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MTC
Revision: June 20062007 Versa
OIL ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR
After replacing any of the following major components, add the correct amount of oil to the system.
Amount Of Oil To Be Added
*1: If refrigerant leak is small, no addition of oil is needed.
OIL ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT
1. Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges.
No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
Part replacedOil to be added to system
Remarks
Amount of oil
m (US fl oz, Imp fl oz)
Evaporator 35 (1.2, 1.2) -
Condenser 15 (0.5, 0.5) -
Liquid tank 5 (0.2, 0.2) -
In case of refrigerant leak30 (1.0, 1.1) Large leak
None *1
Small leak
*1
1. New compressor 2. Old compressor 3. Recovery/recycling equipment
4. Measuring cup X 5. Measuring cup Y 6. New oil
A. Drain oil from the new compressor
into clean containerB. Record amount of oil recovered C.
Add an additional 5 m (0.2 US fl oz,
0.2 Imp fl oz) of new oil when replac-
ing liquid tank
D. Install new oil equal to recorded
amounts in measuring cups X plus Y
WJIA1716E

MTC-20
OIL
Revision: June 20062007 Versa
2. Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure oil discharged into the
recovery/recycling equipment.
3. Drain the oil from the old (removed) compressor into a graduated container and recover the amount of oil
drained.
4. Drain the oil from the new compressor into a separate, clean container.
5. Measure an amount of new oil installed equal to amount drained from old compressor. Add this oil to new
compressor through the suction port opening.
6. Measure an amount of new oil equal to the amount recovered during discharging. Add this oil to new com-
pressor through the suction port opening.
7. If the liquid tank also needs to be replaced, add another 5 m (0.2 US fl oz, 0.2 Imp fl oz.) of oil at this
time.
Add this 5 m (0.2 US fl oz, 0.2 Imp fl oz.) of oil only when replacing the compressor.

TROUBLE DIAGNOSIS
MTC-55
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MTC
Revision: June 20062007 Versa
TROUBLE DIAGNOSIS FOR UNUSUAL PRESSURE
Whenever system’s high and/or low side pressure(s) is/are unusual, diagnose using a manifold gauge. The
marker above the gauge scale in the following tables indicates the standard (usual) pressure range. Since the
standard (usual) pressure, however, differs from vehicle to vehicle, refer to above table (Ambient air tempera-
ture-to-operating pressure table).
Both High- and Low-pressure Sides are Too High
High-pressure Side is Too High and Low-pressure Side is Too Low
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure
sides are too high.Pressure is reduced soon
after water is splashed on
condenser.Excessive refrigerant charge in
refrigeration cycle.Reduce refrigerant until
specified pressure is
obtained.
Air suction by cooling fan is
insufficient.Insufficient condenser cooling perfor-
mance.
↓
1. Condenser fins are clogged.
2. Improper fan rotation of cooling
fan.

Clean condenser.

Check and repair cooling
fan if necessary.

Low-pressure pipe is not
cold.

When compressor is
stopped high-pressure
value quickly drops by
approximately 196 kPa
(1.96 bar, 2 kg/cm
2 , 28
psi). It then decreases
gradually thereafter.Poor heat exchange in condenser
(After compressor operation stops,
high-pressure decreases too
slowly.).
↓
Air in refrigeration cycle.Evacuate repeatedly and
recharge system.
Engine tends to overheat. Engine cooling systems malfunction.Check and repair each
engine cooling system.

An area of the low-pres-
sure pipe is colder than
areas near the evaporator
outlet.

Plates are sometimes cov-
ered with frost.

Excessive liquid refrigerant on low-
pressure side.

Excessive refrigerant discharge
flow.

Expansion valve is open a little
compared with the specification.
↓
Improper expansion valve adjust-
ment.Replace expansion valve.
AC359A
Gauge indication Refrigerant cycle Probable cause Corrective action
High-pressure side is too high
and low-pressure side is too low.
Upper side of condenser and
high-pressure side are hot,
however, liquid tank is not so
hot.High-pressure tube or parts located
between compressor and condenser
are clogged or crushed.

Check and repair or
replace malfunctioning
parts.

Check oil for contami-
nation.
AC360A

MTC-56
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
High-pressure Side is Too Low and Low-pressure Side is Too High
Both High- and Low-pressure Sides are Too Low
Gauge indication Refrigerant cycle Probable cause Corrective action
High-pressure side is too low
and low-pressure side is too
high.High- and low-pressure sides
become equal soon after com-
pressor operation stops.Compressor pressure operation
is improper.
↓
Damaged inside compressor
packings.Replace compressor.
No temperature difference
between high- and low-pres-
sure sides.Compressor pressure operation
is improper.
↓
Damaged inside compressor
packings.Replace compressor.
AC356A
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure
sides are too low.

There is a big temperature
difference between liquid tank
outlet and inlet. Outlet tem-
perature is extremely low.

Liquid tank inlet and expan-
sion valve are frosted.Liquid tank inside is slightly
clogged.

Replace liquid tank.

Check oil for contamination.

Temperature of expansion
valve inlet is extremely low as
compared with areas near liq-
uid tank.

Expansion valve inlet may be
frosted.

Temperature difference
occurs somewhere in high-
pressure side.High-pressure pipe located
between liquid tank and expan-
sion valve is clogged.

Check and repair malfunc-
tioning parts.

Check oil for contamination.
Expansion valve and liquid tank
are warm or only cool when
touched.Low refrigerant charge.
↓
Leaking fittings or componentsCheck refrigerant for leaks.
Refer to MTC-92, "
Checking
for Refrigerant Leaks" .
There is a big temperature dif-
ference between expansion
valve inlet and outlet while the
valve itself is frosted.Expansion valve closes a little
compared with the specifica-
tion.
↓
1. Improper expansion valve
adjustment.
2. Malfunctioning expansion
valve.
3. Outlet and inlet may be
clogged.

Remove foreign particles by
using compressed air.

Replace expansion valve.

Check oil for contamination.
An area of the low-pressure
pipe is colder than areas near
the evaporator outlet.Low-pressure pipe is clogged or
crushed.

Check and repair malfunc-
tioning parts.

Check oil for contamination.
Air flow volume is not enough or
is too low.Evaporator is frozen.

Check thermo control amp.
Refer to MTC-41, "
Magnet
Clutch Circuit (If Equipped)"
.

Replace compressor.

Repair evaporator fins.

Replace evaporator.

Refer to MTC-37, "Blower
Motor Circuit" .
AC353A

TROUBLE DIAGNOSIS
MTC-57
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MTC
Revision: June 20062007 Versa
Low-pressure Side Sometimes Becomes Negative
Low-pressure Side Becomes Negative
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes
becomes negative.

Air conditioning system
does not function and does
not cyclically cool the com-
partment air.

The system constantly func-
tions for a certain period of
time after compressor is
stopped and restarted.Refrigerant does not dis-
charge cyclically.
↓
Moisture is frozen at expan-
sion valve outlet and inlet.
↓
Water is mixed with refriger-
ant.

Drain water from refrigerant
or replace refrigerant.

Replace liquid tank.
AC354A
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side becomes nega-
tive.
Liquid tank or front/rear side of
expansion valve’s pipe is
frosted or dewed.High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid tank
is frosted.Leave the system at rest until
no frost is present. Start it
again to check whether or not
the malfunction is caused by
water or foreign particles.

If water is the cause, initially
cooling is okay. Then the
water freezes causing a
blockage. Drain water from
refrigerant or replace refrig-
erant.

If due to foreign particles,
remove expansion valve
and remove the particles
with dry and compressed air
(not shop air).

If either of the above meth-
ods cannot correct the mal-
function, replace expansion
valve.

Replace liquid tank.

Check oil for contamination.
AC362A

MTC-60
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
NoiseEJS0057R
SYMPTOM: Noise
INSPECTION FLOW
*1.MTC-33, "Operational Check"*2.MTC-85, "INSPECTION FOR
CLUTCH DISC TO PULLEY CLEAR-
ANCE"
*3.MTC-18, "Maintenance of Oil Quan-
tity in Compressor"
*4.EM-13, "Checking Drive Belts"*5.MTC-84, "REMOVAL"
WJIA2226E