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Volkswagen vehicles capable of running on ethanol (E85)

Community name for Volkswagen’s water-cooled, horizontally opposed four-cylinder engine family used in Vanagons. Gerry’s technical index covers 1.9 L and 2.1 L versions and year-specific service topics. A January 2004 archive thread describes an owner’s 1983 1.9 L Waterboxer running roughly when cold but normally after warming up; it records the symptom and discussion, not a universal cause or fix. Identify the engine code and model year before using parts or service information.

The electronic control unit (ECU) is part of Volkswagen’s Digifant fuel-injection and engine-management system. Gerry’s 1986–1991 technical bulletin index distinguishes these applications from the earlier Digijet years. In a January 1999 list thread, an owner of a 1986 Westfalia reported that the engine quit after cooling-system bleeding and asked whether fuel starvation or a failed Digifant component was involved; the thread records a troubleshooting question, not a confirmed diagnosis. Check engine code and market before identifying an ECU.

A seal for the injection valve

A crankshaft with a longer stroke than standard

A component that protects surrounding areas from heat

a tank used to vent fuel vapors

A container that holds the power steering fluid

a type of refrigerant used in older air conditioning systems

a housing that covers the bell-shaped area of a transmission

A device that multiplies the torque of the engine

Valve used to remove air from the cooling system

Cap that seals the radiator and maintains system pressure

Lever that controls throttle valve opening

Housing that contains the throttle valve and linkage

high-voltage system in hybrid and electric vehicles

Process of reducing nitrogen oxide emissions

Fuses specifically designed for diesel engine glow plugs

A small radiator that transfers heat from engine coolant to air for the cabin heating system. Vanagons may have front and additional rear heat exchangers, depending on equipment and market.

The point at which exhaust gases exit the vehicle