S 320 SWB (140.032) L6-3.2L (104.994) (1994)
Expansion Valve: Service and Repair
Air conditioner
Drain (recycling).
Wiper system
Remove. See: Wiper and Washer Systems/Service and Repair
Water collector
Remove. See: Air Register/Service and Repair
Hexagon nut on expansion valve
Unscrew and pull pipes out of expansion valve (82), seal off openings (parts set 140 830 01 27), tighten to 10 ± 3 Nm.
Both screws (5)
Unscrew and remove expansion valve (82). Seal openings (parts set 140 830 01 27), and tighten to 8 ± 2 Nm.
Install
In the reverse sequence, renewing and lubricating the O-ring (83 and 84) and the 0-rings on the evaporator pipes with compressor oil.
Receiver dehydrator
Renew. See: Receiver Dryer/Service and Repair
Air conditioner
Evacuate refill, check function and check for leaks, run engine at idle speed only in the first 4 minutes.
NOTE: Parts which have come into contact with compressor oil for R12 or R134a may only be installed in systems with the same refrigerant.
After completing the work erase fault memory in the control unit.