E 320 4MATIC Wagon (210.282) V6-3.2L (112.941) (1998)
Expansion Valve: Service and Repair
Removing and installing expansion valve
Illustrated On Model 210
DANGER:
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Explosion hazard when performing welding or brazing work on closed air conditioning. 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 flame is prohibited.
Wear protective goggles and protective gloves, work only in well ventilated rooms. Perform repair work on air conditioning circuit only if
system is discharged.
CAUTION: Protect air conditioning circuit and components from moisture during repair work.
1
Drain air conditioning (recycle), evacuate, charge, check for leakage
CAUTION: Add quantity of compressor oil evacuated to refrigeration circuit when charging air conditioning.
2
Remove left air inlet
3
Remove right air inlet
4
Remove wiper system
5
Remove water collector
6
Remove rubber grommet (1)
NOTE: Model 210 only
7
Unscrew hex. nut (6)
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Nut on expansion valve: 10 N.m
8
Remove pipe lines from expansion valve
CAUTION: Plug openings (parts kit)
9
Unscrew screws (5)
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Screw on expansion valve: 8 N.m
10
Replace receiver/drier
11
Reinstall in opposite order.
CAUTION: Replace O-rings (83, 84) (moisten with compressor oil).