ML 320 (163.154) V6-3.2L (112.942) (1998)
Housing Assembly HVAC: Service and Repair
Disassembling, Assembling A/C Housing
DANGER:
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Explosion hazard due to welding or brazing work on the closed air conditioning system. Poisoning hazard from inhaling overheated
refrigerant vapors. Injury hazard from eye or skin contact with liquid refrigerant.
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Never perform welding or brazing work on the closed air conditioning system or in its vicinity. Smoking and open fire is prohibited.
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Wear protective goggles and protective gloves, only work in well ventilated rooms.
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Perform repair work on air conditioning circuit only if system is discharged.
CAUTION:
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Action to be taken in the event air conditioning is damaged or leaks
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Protect air conditioning circuit and components from moisture during repair work.
1
Remove A/C housing
2
Remove heat exchanger (1) from heater housing
3
Remove air mixture flap actuator (M16/8)
4
Unscrew screws (2) from upper section of A/C housing (3)
5
Remove upper section of A/C housing (3)
NOTE: Replace gasket between firewall and A/C housing.
6
Remove dust filter (7) from bottom section of A/C housing (5)
7
Remove evaporator (6)
8
Remove evaporator temperature sensor (B10/4)
9
Remove blower motor (M2)
10
Reinstall in opposite order.