Beetle L4-1.9L DSL Turbo (ALH) (1998)
Sight Glass: Description and Operation
Sight Glass (if equipped)
With a properly charged A/C system and A/C clutch engaged, the sight glass - arrow- should remain clear and bubble free.
The mixture of R-134a refrigerant and refrigerant (PAG) oil may appear milky in the sight glass.
If equipped, sight glass location may not be as illustrated.