Repair Steps.1.Place the gear shift lever in Park or First gear.2.Place wheel chocks behind the rear wheels of vehicle.3. Pull the hood hand lever in the cabin compartment of the vehicle.4.Pull the outside hood cable and raise the engine hood.5.Place a memory keeper (device used to retain computer settings) in the accessory socket in the cabin compartment.6. Press the tab on the top battery cover and remove.7.Press the tab on the fuse box cover and lift the cover up so that fuses are accessible.8.Using a 1/4-inch square drive 10mm socket and a 1/4-inch square drive ratchet, remove the POSITIVE cable (red) to the fuse box.9.Using a 1/4-inch square drive 10mm socket and a 1/4-inch square drive ratchet, remove the clamp that secures the NEGATIVE cable to the NEGATIVE post.10. Using above hand tools, remove clamp attached to POSITIVE cable to POSITIVE post.11.Detach the clamp on the battery cover.Using a flat-blade screwdriver, disengage the tabs that secure the cover to the tray.12. Remove the cover and set aside.13.Using a 3/8-inch square drive 13mm socket and 3/8-inch ratchet and 3/8-inch square drive 18-inch extension, remove battery hold-down bolt and bracket.14.Using a strap, remove from vehicle and place on work bench for testing.15.Before testing,, the electrolyte level in all cells (6) are checked.16. Remove the filler caps from their cells.17.Place a hydrometer (available at auto parts stores) in one (1) or the six (6) cells.18.The reading on the scale of the hydrometer should approximately be 1.270.This reading indicates a full charge.A lower reading indicates charging before testing.19.Fill cells that are low with a liquid filler, using only distilled water.20.Place charger on work bench and position cables.21. Place the red cable to the POSITIVE post.22.Place the charger black cable to the NEGATIVE post .23. Set the selector switch set to the 2-amp setting,.24.Charge the battery for seventy-two (72) hours.To bring it to a full charge.25.Using a digital multi-meter (DMM) (available at auto parts stores) set the selector switch to the VOLTS setting.26.Place the red test of the DMM into the red jack.27. Place the black test lead of the DMM to the COM jack.28.Place the other end of the red test lead to the the POSITIVE post .29.Place the other end of the black test lead of the the NEGATIVE post.30.The reading on the display of the DMM should range from 12.50 to 12.75 volts.31.This reading would indicate a full charge.32, This test is known as the open circuit test (OCV) and only indicates that it is is fully charged.33.It can only be checked for capacity and strength with a load tester.34.A load tester evaluates the ability to operate the vehicle starter motor, accessories, and maintain that load for 15 seconds with the voltage not going below 9.6 VOLTS.35. A battery incapable of holding this voltage load is defective.36.The load test showed it was defective.37.Before installing a replacement , the specifications and dimensions should be the same as the original being replaced; namely, amperage rating, and cold cranking rating.38.Clean the NEGATIVE and POSITIVE posts.39.Clean the NEGATIVE and POSITIVE cables with a wire brush before installing the replacement .40. Stubborn corrosion and dirt should be cleaned with baking soda and water.41.Place the replacement in the vehicle battery tray.42.Install the hold-down bolt and bracket, cover, fuse box bolt, and top cover in the reverse order from which they were removed.43.Remove the memory keeper from the accessory socket.44.Remove the chocks from rear wheels.45.Test drive the Beetle for proper operation.Project Tips.* A memory keeper is an electronic device that is powered by a nine (9) volt battery.When it is placed in the accessory socket, located in the cabin compartment, the settings in the ROM memory of the computer are not lost.Without the aid of the memory keeper, the vehicle would have to be driven several miles for the computer to re-learn the programmed settings.* A digital multi-meter (DMM) is an electronic test instrument that is used by technicians' and do-it-yourselfers to trace electrical faults on a vehicle.* To prevent sulphation, a battery maintainer should be used to keep it charged when a vehicle is left out-of-service or when in storage.Warning.When working around a storage battery, safety glasses should be worn to protect the eyes from gasses and elecrolyte.Tools and Equipment.Flat-blade screwdriver.Battery maintainer.Battery charger.Memory keeper.Wheel chocks.3/8-inch square drive 5mm hex-bit socket.3/8-inch square drive ratchet.1/4-inch square drive 10mm socket.1/4-inch square drive ratchet.3/8-inch square drive 18-inch extension.Digital multi-meter (DMM).Hydrometer.Battery load tester.Replacement battery.
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