If you think fuel starvation is an issue, then u should. What type of filter do you have?
The clear plastic type? Sealed metal? Where is it located? Better not to have a filter in the engine compartment of the beetles. Several instances of either the hose slipping out or filter leaking have been reported on TheSamba to cause fires. Suggested place is under the tank.
But, if the car is running well apart from hot idle, it's not likely to be a filter or pump.
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