FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Home >> Freightliner Truck >> 2009 >> Sprinter 3500 V6-3.0L DSL Turbo >> Repair and Diagnosis >> Heating and Air Conditioning >> Condenser HVAC >> Service and Repair >> A/C Condenser - Installation >> Rear

Rear






INSTALLATION

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.

NOTE: When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system .

NOTE: If only the rear A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.

NOTE: Replacement of the refrigerant line O-ring seals is required anytime an A/C expansion valve is removed. Failure to replace the rubber O-ring seals may result in a refrigerant system leak.





1. Remove the tape or plugs from the receiver/drier and condenser ports.
2. Lubricate a new O-ring seal with clean refrigerant oil and install it onto the condenser outlet fitting. 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 A/C compressor in the vehicle.
3. Connect the rear A/C receiver/drier (4) to the rear condenser outlet line (2) and loosely install the retaining bolt (1).
4. Position the rear A/C receiver/drier to the rear A/C condenser (5) and install the two retaining screws (3). Tighten the screws securely.
5. Tighten the bolt that secures the rear condenser outlet line to the rear A/C receiver/drier to 6 Nm (53 in. lbs.).





6. Position the rear A/C condenser (5) onto the two rear condenser mounting brackets located on the top of the vehicle.
7. Carefully reposition the four condenser fan mounting tabs (7).
8. Install the four bolts (6) that secure the rear A/C condenser to the rear condenser mounting brackets. Tighten the bolts securely.
9. Remove the tape or plugs from the opened refrigerant line fittings.
10. Lubricate new O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-ring seals as they are 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 rear A/C liquid line (11) to the rear A/C receiver/drier (9) and install the retaining bolt (10). Tighten the bolt to 6 Nm (53 in. lbs.).
12. Connect the wire harness and connector (12) to the rear A/C pressure transducer.

NOTE: Be certain that each of the rear condenser air seals are installed in their proper locations. These air seals are required for the rear A/C system to perform as designed.

13. If replacing the rear A/C condenser, install new seals around the edge of the condenser to assure a good seal between the condenser and the rear condenser fan unit.
14. Install the two condenser fan mounting brackets (8) and the rear condenser fan unit (3).
15. Install the six washers and nuts (4) that secure the rear condenser fan unit to the rear A/C condenser. Tighten the nuts securely.
16. Connect the rear A/C discharge line (2) to the rear A/C condenser and install the retaining bolt (1). Tighten the bolt to 6 Nm (53 in. lbs.).





17. Connect the two wire harness connectors (1) on the left side rear condenser mounting bracket (2).





18. Install the rear condenser cover bracket (2) onto the rear condenser bracket (5) and install the four retaining bolts (3). Tighten the bolts securely.
19. Install the nut and bolt (4) that secure the rear A/C suction line (1) to the rear condenser cover bracket. Tighten the nut securely.
20. Install the rear condenser cover to the top of the vehicle and install the retaining screws. Tighten the screws to 2 Nm (17 in. lbs.).
21. Reconnect the negative battery cable.
22. Evacuate the rear refrigerant system .
23. If the rear A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle .
24. Charge the rear refrigerant system .

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