Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 2355
REAR SECTION
NOTE: LHD model shown. RHD model similar.
1. Recover the refrigerant from the refrigerant system
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING
-
STANDARD
PROCEDURE
-
REFRIGERANT SYSTEM RECOVERY).
2. Disconnect and isolate the negative battery cable.
3. Remove the air cleaner housing (Refer to 9 -
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER
HOUSING - REMOVAL).
4. Remove the nut (6) that secures the front section
of the A/C liquid line (8) to the rear section of the
liquid line (10).
5. Disconnect the front section of the A/C liquid line
from the rear section of the liquid line and remove
and discard the dual plane seal.
6. Install plugs in, or tape over the opened liquid line
fittings.
7. Remove the nut (7) that secures the front section of the A/C suction line (9) to the rear section of the suction line
(12).
8. Disconnect the front section of the A/C suction line from the rear section of the suction line and remove and
discard the dual plane seal.
9. Install plugs in, or tape over the opened suction line fittings.
10. Disconnect the wire harness (3) from the A/C pressure transducer (2).
11. Remove the bolt (5) that secures the refrigerant line mounting bracket to the left front shock tower (4).
12. Remove the nut (11) that secures the liquid and suction line tapping block (13) to the A/C expansion valve (1).
13. Disconnect the rear section of the A/C liquid and suction lines from the A/C expansion valve.
14. Remove the dual plane seal from the suction and liquid line fittings and discard.
15. Install plugs in, or tape over the opened suction and liquid line fittings and the expansion valve ports.
16. Remove the rear section of the A/C liquid and suction lines as an assembly from the engine compartment.
17. If required, remove the A/C pressure transducer from the rear section of the A/C liquid line (Refer to 24 - HEAT-
ING & AIR CONDITIONING/CONTROLS/TRANSDUCER-A/C PRESSURE - REMOVAL).
INSTALLATION
NOTE: The A/C liquid line is serviced in two sections. The rear section of the liquid line is serviced as an
assembly with the rear section of the A/C suction line.
24 - 454
PLUMBING
LX
FRONT SECTION
NOTE: LHD model shown. RHD model similar.
1. Position the front section of the liquid line (2) into
the engine compartment.
2. Remove the tape or plugs from the fittings that
connect the front section of the A/C liquid line to
the rear section of the A/C liquid line (3).
3. Lubricate a new dual plane seal with clean refrig-
erant oil and install it onto the liquid line fitting. Use
only the specified seal as it is made of a special
material for the R-134a system. Use only refriger-
ant oil of the type recommended for the A/C com-
pressor in the vehicle.
4. Connect the front section of the A/C liquid line to
the rear section of the A/C liquid line.
5. Install the nut (1) that secures the front section of
the A/C liquid line to the rear section of the A/C liq-
uid line. Tighten the nut to 22 N·m (16 ft. lbs.).
6. Raise and support the vehicle.
7. Remove the tape or plugs from the fitting on the
front section of the A/C liquid line (4) and the outlet
port of the A/C condenser (5).
8. Lubricate a new dual plane seal with clean refrig-
erant oil and install it onto the liquid line fitting. Use
only the specified seal as it is made of a special
material for the R-134a system. Use only refriger-
ant oil of the type recommended for the A/C com-
pressor in the vehicle.
9. Connect the A/C liquid line to the A/C condenser.
10. Install the nut (3) that secures the front section of
the A/C liquid line to the A/C condenser. Tighten
the nut to 22 N·m (16 ft. lbs.).
11. Install the front end splash shields (Refer to 23 -
BODY/EXTERIOR/FRONT
END
SPLASH
SHIELDS - INSTALLATION).
12. Lower the vehicle.
13. Install the air cleaner housing (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR CLEANER HOUSING - INSTAL-
LATION).
14. Reconnect the negative battery cable.
15. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
16. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
LX
PLUMBING
24 - 455
REAR SECTION
NOTE: LHD model shown. RHD model similar.
1. If removed, install the A/C pressure transducer (2)
onto the A/C liquid line (10) (Refer to 24 - HEAT-
ING
&
AIR
CONDITIONING/CONTROLS/A/C
PRESSURE TRANSDUCER - INSTALLATION).
2. Position the rear section of the A/C liquid line (10)
and the rear section of the A/C suction line (12) as
an assembly into the engine compartment.
3. Remove the tape or plugs from the suction and liq-
uid line fittings and the ports in the A/C expansion
valve (1).
4. Lubricate a new dual plane seal with clean refrig-
erant oil and install it onto the suction and liquid
line fittings. Use only the specified seal as it is
made of a special material for the R-134a system.
Use only refrigerant oil of the type recommended
for the A/C compressor in the vehicle.
5. Connect the rear section of the A/C liquid and suction lines to the A/C expansion valve.
6. Install the nut (11) that secures the liquid and suction line tapping block (13) to the A/C expansion valve. Tighten
the nut to 23 N·m (17 ft. lbs.).
7. Install the bolt (5) that secures the refrigerant line mounting bracket to the left front shock tower (4). Tighten the
bolt to 11 N·m (97 in. lbs.).
8. Connect the wire harness (3) to the A/C pressure transducer.
9. Remove the tape or plugs from the fittings that connect the front section of the A/C liquid line (8) to the rear
section of the A/C liquid line.
10. Lubricate a new dual plane seal with clean refrigerant oil and install it onto the liquid line fitting. Use only the
specified seal as it is made of a special material for the R-134a system. Use only refrigerant oil of the type
recommended for the A/C compressor in the vehicle.
11. Connect the front section of the A/C liquid line to the rear section of the A/C liquid line.
12. Install the nut (6) that secures the front section of the A/C liquid line to the rear section of the A/C liquid line.
Tighten the nut to 22 N·m (16 ft. lbs.).
13. Remove the tape or plugs from the fittings that connect the front section of the A/C suction line (9) to the rear
section of the A/C suction line.
14. Lubricate a new dual plane seal with clean refrigerant oil and install it onto the suction line fitting. Use only the
specified seal as it is made of a special material for the R-134a system. Use only refrigerant oil of the type
recommended for the A/C compressor in the vehicle.
15. Connect the front section of the A/C suction line to the rear section of the A/C suction line.
16. Install the nut (7) that secures the front section of the A/C suction line to the rear section of the A/C suction line.
Tighten the nut to 22 N·m (16 ft. lbs.).
17. Install the air cleaner housing (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR CLEANER HOUSING -
REMOVAL).
18. Reconnect the negative battery cable.
19. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
20. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
24 - 456
PLUMBING
LX
LINE-A/C SUCTION
DESCRIPTION
NOTE: LHD model shown. RHD model similar.
The A/C suction line is the refrigerant line that carries
refrigerant from the A/C evaporator to the A/C com-
pressor. The A/C suction line is serviced in two sec-
tions. The front section of the suction line (1) connects
to the rear section of the suction line (3) with a nut (6).
The rear section of the A/C suction line includes the
low side service port (2) and is secured to the A/C
expansion valve by a tapping plate (4). The rear sec-
tion of the A/C suction line is serviced as an assembly
with the rear section of the A/C liquid line (5).
CAUTION: Use only seals specified for the vehicle.
Failure to use the correct seals will cause the
refrigerant system connections to leak.
The A/C suction line has no serviceable parts except
for the dual plane seals, low-side service port valve
and its protective cap. The seals used on the connections are made from a special type of rubber not affected by
R-134a refrigerant. The seals must be replaced whenever the A/C suction line is removed and installed.
If either section of the A/C suction line is found to be leaking or damaged, it must be replaced.
REMOVAL
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
NOTE: The A/C suction line is serviced in two sections. The rear section of the suction line is serviced as
an assembly with the rear section of the A/C liquid line.
FRONT SECTION
1. Recover the refrigerant from the refrigerant system
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING
-
STANDARD
PROCEDURE
-
REFRIGERANT SYSTEM RECOVERY).
2. Disconnect and isolate the negative battery cable.
3. Remove the air cleaner housing (Refer to 9 -
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER
HOUSING - REMOVAL).
4. Remove the nut (2) that secures the front section
of the A/C suction line (3) to the A/C compressor
(5).
5. Disconnect the A/C suction line from the A/C com-
pressor and remove and discard the dual plane
seal.
6. Install plugs in, or tape over the opened suction
line fitting and compressor inlet port.
LX
PLUMBING
24 - 457
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