Golf GTI V6-2792cc 28L DOHC (AAA) SFI (1998) Expansion Valve - Description and Operation
Expansion Valve: Fundamentals and Basics
1 - Insulator
2 - Expansion valve
Insulation is used around expansion valve to prevent moisture condensation) build-up and to protect expansion valve from high engine compartment
temperatures and the resulting decrease in A/C system cooling performance.
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Install insulator -1- over expansion valve -2- (arrow).
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Check insulator for damage and proper fit,and replace if necessary.