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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Charging System (Battery, Starter And Generator) & Cruise Control (2 Of 2) >> 27 Starter, Generator And Cruise Control >> Battery, Checking >> Visual Indicator Color Display, Checking >> 3-Color Visual Indicator, Checking, Through 03/2008

3-Color Visual Indicator, Checking, Through 03/2008

WARNING:

Risk of injury. Follow all warning messages and safety precautions. Refer to WARNINGS AND SAFETY PRECAUTIONS .

Visual Indicator General Information:

The visual indicator provides information concerning the electrolyte level and the Battery -A- charge level.

To obtain an accurate reading, gently tap the charge indicator with a screwdriver handle or rock vehicle slightly. By doing this, the air bubbles that occur normally during battery charging (even during vehicle operation) that adversely affect charge indicator reading will be displaced. Thereby, the color indicator of the visual indicator is more accurate.

NOTE:

Air bubbles can form under the visual indicator, especially if a Battery -A- was recharged or if the Battery -A- was charged while driving. These bubbles may cause the visual indicator to read inaccurately.

As the charge indicator is located in a single cell, the indication is only valid for that cell. An exact assessment of battery condition should always be confirmed by performing battery test. Refer to BATTERY LOAD TEST .

The visual indicator can be installed at various locations on top of the Battery -A-.

There Are Three Possible Color Indications

WARNING:

Do not check or charge a Battery -A- when the visual indicator has >>no color or is bright yellow<<. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These Batteries -A- must be replaced.