Expansion Valve

The expansion valve meters the flow of refrigerant going into the air conditioning evaporator.

Symptoms of a Bad or Failing Expansion Valve

  • Air from AC is not very cold
  • A expansion valve is used in a system that has a receiver dryer in the high pressure (liquid) line

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1994 Mercedes-Benz S420
I am trying to locate the expansion valve on my 1994 s420. can anyone help asap.