No
haven't seen a block heater on VW's
You cannot, they are not manufactured with a block heater.
You can install a circulating block heater in your 2001 VW Beetle on the bottom radiator hose. The installation is quite simple.
If a 2001 VW Beetle does not have hot air coming from the heater there is a problem with the vehicles heating system. The heater core is malfunctioning and will need to be replaced.
Go to the Library. http://www.vintagebus.com/wiring/ It has diagrams for all vintage VW's
If the engine that came with it is in it, it's a 1600cc dual-port engine with a 34mm Solex carburetor.
Yes it can. E10 is no problem for a VW beetle.
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To install a floor pan in a VW beetle, first remove the seats and floor carpet. Also remove heater tubes, battery and rear support. Finally, arrange the floor pan and tighten the pan bolts.
Check your heater core also.