Skip to main content
vanagon.com
SearchSavedAccount

The Vanagon Dictionary

Get to know your Volkswagen.

Look up Vanagon, EuroVan and Volkswagen Bus terms, then follow the definitions to their sources.

About the Dictionary and its data

Definitions and source records come from the shared Dictionary, which remains available at dictionary.vanagon.com.

API and data details

Results for “Disc”

29 public entries · page 1 of 2

  • Disc brakes

    Brakes and suspension

    English · machine-assisted draft

    Type of brake using a disc to slow or stop a vehicle

    • brakes
    • disc
  • Clutch Disc

    Transmission and drivetrain

    English · machine-assisted draft

    Component of manual transmission system

    • clutch
    • disc
    • manual
    • transmission
  • Clutch disc hub

    Transmission and drivetrain

    English · machine-assisted draft

    The central part of the clutch disc that connects to the mainshaft

    • clutch
    • transmission
  • Deep discharge

    Electrical systems

    English · machine-assisted draft

    Discharging a battery to a low state of charge. It does not necessarily mean zero charge or zero terminal voltage. In the lead-acid context of Gerry’s FAQ, repeated deep discharge can shorten useful life. A “deep-cycle” label does not remove the battery manufacturer’s discharge limits.

    • battery
    • discharge
  • Brake disc

    Brakes and suspension

    English · machine-assisted draft

    A flat, round plate that rotates with the wheel and is squeezed by the brake pads to slow the vehicle

    • brakes
    • disc
  • Self-discharge

    Electrical systems

    English · machine-assisted draft

    The loss of charge in a battery over time

    • batteries
    • storage
  • Depth of discharge

    Electrical systems

    English · machine-assisted draft

    The percentage of battery capacity used before recharging

    • batteries
    • lifespan
  • Disc brake splash shield

    Brakes and suspension

    English · machine-assisted draft

    Shield protecting from brake splash

    • brakes
    • vanagon
  • Gas-discharge lamp

    Electrical systems

    English · machine-assisted draft

    A type of lamp that produces light by exciting a gas, such as xenon

    • lighting
    • lamp
  • High Pressure Discharge Hose

    Cooling and heating

    English · machine-assisted draft

    A hose that carries high-pressure refrigerant in the air conditioning system

    • hose
    • pressure
  • deep-cycle

    Electrical systems

    English · machine-assisted draft

    Battery type for frequent discharge and recharge

    • batteries
    • camper
  • Lug nut

    Brakes and suspension

    English · machine-assisted draft

    bolt used to mount wheel to brake drum or disc brake rotor

    • wheel
    • brake
  • MOS2 grease

    Engine and fuel systems

    English · machine-assisted draft

    A type of grease not recommended for lubricating clutch disc hubs

    • lubricant
    • clutch
  • Decoupler

    Transmission and drivetrain

    English · machine-assisted draft

    In a Syncro drivetrain, a driveshaft decoupler disconnects the prop shaft so the front axle is no longer driven through it; it is not the front differential lock. A Gerry discussion on 16 May 2004 compares the original non-viscous-coupling layout, which used a driveshaft decoupler, with viscous-coupling Syncros while debating front-lock behavior. The thread is historical community discussion, not a retrofit procedure; identify the drivetrain configuration before interpreting parts or controls.

    • vw
    • syncro
    • drivetrain
  • Isolation relay

    Electrical systems

    English · machine-assisted draft

    A device that connects or disconnects a circuit to isolate it from other circuits

    • electrical
    • relay
    • solenoid
  • Active battery isolator

    Electrical systems

    English · machine-assisted draft

    A device that actively manages the charging and discharging of multiple battery banks

    • electrical
    • batteries
    • isolator
  • Deep Cycle Battery

    Electrical systems

    English · machine-assisted draft

    A battery designed for repeated, prolonged discharge and recharge, rather than chiefly for the brief high current used to start an engine. In camper discussions this distinction helps explain a leisure battery’s role. “Deep-cycle” is a duty description, not permission to drain any battery completely; chemistry and manufacturer limits still matter.

    • battery
    • type
  • Grean P/N: G 000 100

    Engine and fuel systems

    English · machine-assisted draft

    A type of grease recommended for lubricating clutch disc hubs

    • lubricant
    • clutch
  • Reserve Capacity

    Engine and fuel systems

    English · machine-assisted draft

    A lead-acid battery rating expressed in minutes under a specified discharge test. Gerry’s FAQ describes a 25-amp load at 80 °F until a 12-volt battery reaches 10.5 volts. It is neither amp-hours nor a prediction of camper runtime, which depends on actual loads, conditions and discharge limits.

    • batteries
    • reserve
    • capacity
  • Sulfated

    Electrical systems

    English · machine-assisted draft

    Describes a lead-acid battery affected by persistent lead-sulfate deposits on its plates. Gerry’s FAQ associates this condition with prolonged discharged storage and reduced serviceability. This is different from corrosion visible on external terminals, and the label alone does not establish that a battery can be restored.

    • battery
    • condition
  • Camper sink drain

    VW Bus and camper parts

    English · source definition

    The drain pipe and outlet that carry used sink water out of the camper sink. Some vintage camper layouts discharge through an open outlet rather than a grey-water tank, so the installed arrangement should be checked on the vehicle.

    • camper
    • water-system
    • plumbing
  • electrolyte

    Electrical systems

    English · machine-assisted draft

    In the lead-acid batteries discussed in Gerry’s battery FAQ, the liquid mixture of sulfuric acid and water in contact with the plates. Its density changes with charge state. This meaning is specific to that battery chemistry; it is not a generic name for every camper battery’s contents.

    • battery
    • chemistry
  • Electrolyte level

    Electrical systems

    English · machine-assisted draft

    The height of the liquid electrolyte relative to the plates in a serviceable flooded lead-acid battery. It describes liquid quantity, not state of charge or specific gravity. Gerry’s battery FAQ discusses accessible cells; this term must not be read as an instruction to open a sealed battery.

    • batteries
    • maintenance
  • maintenance free battery

    Electrical systems

    English · machine-assisted draft

    A lead-acid battery sold as requiring reduced routine servicing, often with no user access for checking or topping up individual cells. The name does not mean that charge, terminals and overall condition need no attention. Gerry’s 1995 FAQ discusses this older automotive usage; it does not describe every modern sealed battery.

    • battery
    • design