Battery Without Visual Indicator

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Special tools and workshop equipment required

Torque Wrench 1410 :VAG1410 , measuring range: 4 through 20 Nm
Or: Torque Wrench 1783 - 2-10Nm :VAG1783 , measuring range: 2 to 10 Nm
Or: Mini Torque Wrench :VAS6854 , measuring range: 5 to 13 Nm
Or: Electronic Torque Wrench 3-60Nm :VAS6583 , measuring range 3 to 60 Nm
Or: Torque Wrench 1331 5-50Nm :VAG1331 , measuring range: 6 to 50 Nm

Tightening Specification Table for Installation:

Component / Fastening Element	[Nm]
Pressure reservoir nut	9

The battery is located in the luggage compartment under the luggage compartment floor.

Removal Procedures:

-- Raise the luggage compartment floor covering and secure.

-- Applies to vehicles with air suspension ("adaptive air suspension"): Remove the nuts -arrows- and move the pressure reservoir with the lines -1- still attached and the solenoid valve block -2- to the side.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the vehicle tool box.

Procedure:

-- Check the battery housing for the following:

Corrosion or damage to the battery terminals
Mechanical damage to the battery housing or cover, recognizable by electrolyte leakage or crystallization on the damaged location.

-- Replace damaged batteries.

-- Check the electrolyte level of all battery cells with the markings in the housing.

-- If the electrolyte level of at least one battery cell is under the MIN mark, replace the battery.

Installation procedures occur in reverse order. While doing so, note the tightening specifications. Refer to BATTERY WITHOUT VISUAL INDICATOR for the installation tightening specification table.

NOTE:

Use a bright flashlight to see the MIN and MAX markings better in the housing.

If it is difficult to read the battery, use a small mirror to check the electrolyte level while holding a bright flashlight at a right angle behind the battery cells.