Mercedes-Benz Sprinter / Dodge Sprinter. Manual - part 514
INSTALLATION
NOTE: Be certain to add refrigerant oil if the rear
A/C evaporator is being replaced. The refrigerant oil
must be drained from the old evaporator and mea-
sured to determine the amount of refrigerant oil to
add to the new evaporator. Use only refrigerant oil
of the type recommended for the rear A/C compres-
sor in the vehicle.
(1) If the rear A/C evaporator is being replaced,
install the correct amount and type of refrigerant oil
into the new rear A/C evaporator. Drain the old evap-
orator and measure the refrigerant oil. Fill the new
evaporator with the same amount of new refrigerant
oil that was drained out of the old evaporator.
(2) With help from an assistant, position and sup-
port the rear A/C evaporator housing into the vehicle.
(3) Inspect the four rubber damping washers for
correct sealing. Replace the washers as required.
CAUTION: Be sure to install the rear A/C system
ground lead with one of the rear evaporator hous-
ing retaining bolts. Failure to correctly install the
ground lead could result in improper operation or
possible damage to the rear A/C system.
(4) Position the ground lead to the rear A/C evap-
orator housing and install the four bolts and washers
and four damping washers that secure the evapora-
tor housing to the roof panel. Tighten the bolts to 25
N·m (18 ft. lbs.).
(5) Install the nine screws that secure the rear A/C
evaporator housing to the roof panel. Tighten the
screws to 5 N·m (45 in. lbs.).
(6) Unplug and connect the two rear evaporator
drain hoses.
(7) Remove the tape or plugs from the refrigerant
line fittings and the rear expansion valve and evap-
orator tube ports.
(8) Lubricate a new O-ring seal with clean refrig-
erant oil and install it onto the rear liquid line fit-
ting. Use only the specified O-ring seal as it is made
of a special material for the R-134a system. Use only
refrigerant oil of the type recommended for the rear
A/C compressor in the vehicle.
(9) Connect the rear liquid line to the rear A/C
expansion valve. Tighten the liquid line nut to 35
N·m (26 ft. lbs.).
Fig. 5 Rear A/C Evaporator Housing
1 - REAR A/C EVAPORATOR HOUSING
2 - REAR A/C WIRE HARNESS
3 - REAR BODY WIRE HARNESS
4 - NUT
5 - POSITIVE WIRE LEAD
6 - GROUND LEAD
7 - GROMMET
8 - SEALING WASHER (4)
9 - BOLT AND WASHER (4)
10 - REAR EVAPORATOR DRAIN HOSES
11 - SCREW (9)
12 - REAR DOME LAMP HARNESS
13 - REAR A/C EVAPANSION VALVE
14 - REAR LIQUID LINE FITTING
15 - REAR A/C EVAPORATOR OUTLET TUBE
16 - REAR SUCTION LINE FITTING
17 - INSULATING TAPE
VA
DISTRIBUTION - REAR
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