Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability with respect to the correctness of information in this document. Copyright by AUDI AG. Repair Manual Audi A1 2011 ➤, Audi A1 Sportback 2018 ➤, Audi A2 2001 ➤, Audi A3 2004 ➤, Audi A3 2013 ➤, Audi A3 2021 ➤, Audi A3 China 2021 ➤, Audi A3 Limousine China 2014 ➤, Audi A3 Sportback China 2014 ➤, Audi A4 2001 ➤, Audi A4 2008 ➤, Audi A4 2015 ➤, Audi A4 Cabriolet 2003 ➤, Audi A5 2016 ➤, Audi A5 Cabriolet 2009 ➤, Audi A5 Coupé 2008 ➤, Audi A6 1998 ➤, Audi A6 2005 ➤, Audi A6 2011 ➤, Audi A6 2019 ➤, Audi A6 China 2012 ➤, Audi A6 China 2019 ➤, Audi A7 Sportback 2011 ➤, Audi A7 Sportback 2018 ➤, Audi A8 2003 ➤, Audi A8 2010 ➤, Audi A8 2018 ➤, Audi Q2 2016 ➤, Audi Q3 2012 ➤, Audi Q3 2019 ➤, Audi Q3 China 2013 ➤, Audi Q3 China 2019 ➤, Audi Q4 e-tron 2022 ➤, Audi Q5 2008 ➤, Audi Q5 2017 ➤, Audi Q5 China 2010 ➤, Audi Q7 2007 ➤, Audi Q7 2016 ➤, Audi Q8 2018 ➤, Audi R8 2007 ➤, Audi R8 2015 ➤, Audi TT 1999 ➤, Audi TT 2007 ➤, Audi TT 2015 ➤, Service Service Department. Technical Information
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability with respect to the correctness of information in this document. Copyright by AUDI AG. Audi e-tron 2019 ➤, Audi e-tron GT 2022 ➤ Electrical Equipment General Information Edition 01.2022 Service Service Department. Technical Information
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability with respect to the correctness of information in this document. Copyright by AUDI AG. 27 – Starter, Generator and Cruise Control 1 Battery (Edition 01.2022) A005AA00421 - 02.01.2022 ⇒ I1.1 nformation”, page 1 ⇒ T1.2 ypes”, page 1 ⇒ a1.3 nd Safety Precautions”, page 3 ⇒ P1.4 ost/Terminal”, page 5 1.1 General Information To guarantee a long service life, the Battery -A- must be checked, serviced and maintained as described in this manual. The Battery -A- supplies the power to start the engine. The Battery -A- also acts as a power reserve for the entire vehicle electrical system. Note Refer to Self Study Program. WARNING Risk of injury. Follow all warning messages and Safety Pre‐ cautions. ⇒ a1.3 nd Safety Precautions”, page 3 Caution In order to prevent damage to the Battery -A- or vehicle, observe the battery type information. Refer to ⇒ T1.2 ypes”, page 1 . 1.2 Battery Types General Information ⇒ B1.2.1 atteryA with Visual Indicator”, page 1 ⇒ 1.2.2 , page 2 ⇒ 1.2.3 , page 3 1.2.1 Battery -A- with Visual Indicator Caution The following described Batteries -A- are maintenance-free Batteries -A-. Do not remove any of the labels on the bat‐ tery and do not add distilled water. Perform only a visual inspection. Note the chapter on battery testing. Refer to ⇒ C2 hecking”, page 6 . Audi A1 2011 ➤, Audi A1 Sportback 2018 ➤, Audi A2 2001 ➤, Audi A3 2004 ➤, Audi ... Electrical Equipment General Information - Edition 01.2022 1. Battery 1
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability with respect to the correctness of information in this document. Copyright by AUDI AG. Maintenance-free Battery -A- with fluid electrolyte (wet battery). Caution Do not remove any of the labels on the battery and do not add distilled water. Perform only a visual inspection. Note the chapter on battery testing. Refer to ⇒ C2 hecking”, page 6 . WARNING Do not check or charge a Battery -A- when the visual indica‐ tor 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. This Battery -A- has a visual indicator. The colors in the visual indicator show the Battery -A- charge and electrolyte level. Visual indicator color display, checking. Refer to ⇒ I2.3 ndicator Color Display, Checking”, page 9 . 1.2.2 EFB-Battery Caution The following described Batteries -A- are maintenance-free Batteries -A-. Do not remove any of the labels on the bat‐ tery and do not add distilled water. Perform only a visual inspection. Note the chapter on battery testing. Refer to ⇒ C2 hecking”, page 6 . Maintenance-free Battery -A- with fluid electrolyte (wet battery). Caution Do not remove any of the labels on the battery and do not add distilled water. Perform only a visual inspection. Note the chapter on battery testing. WARNING Do not check or charge a Battery -A- when the visual indica‐ tor 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. The Battery -A- is installed in certain Stop/Start vehicles due to special requirements. “EFB” is written on the battery cover to identify this battery. Audi A1 2011 ➤, Audi A1 Sportback 2018 ➤, Audi A2 2001 ➤, Audi A3 2004 ➤, Audi ... Electrical Equipment General Information - Edition 01.2022 2 Rep. Gr.27 - Starter, Generator and Cruise Control
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability with respect to the correctness of information in this document. Copyright by AUDI AG. “EFB” stands for »Enhanced Flooded Battery« (enhanced wet battery). An EFB battery may only be replaced with another EFB battery. This Battery -A- has a visual indicator. The colors in the visual indicator show the Battery -A- charge and electrolyte level. Visual indicator color display, checking. Refer to ⇒ I2.3 ndicator Color Display, Checking”, page 9 . Note “EFB” batteries are being used in certain Audi A1 and Audi A3 models from August 2011. 1.2.3 AGM-Battery Caution The following described Batteries -A- are maintenance-free Batteries -A-. Do not remove any of the labels on the bat‐ tery and do not add distilled water. Perform only a visual inspection. Note the chapter on battery testing. Refer to ⇒ C2 hecking”, page 6 . Maintenance-Free Battery -A- with Fixed Electrolyte (AGM bat‐ tery). Lead-acid battery, where the electrolyte is fixed in an absorbent glass mat (AGM). The Battery -A- is closed and equipped with breather valves. “AGM” is the English abbreviation for Absorbent Glass Mat. These Batteries -A- cannot have a visual indicator due to the fixed electrolyte. AGM is on the Battery -A- to identify it. When replacing an AGM battery, another AGM battery must be installed. 1.3 Warnings and Safety Precautions ⇒ W1.3.1 hen Working with Batteries”, page 3 ⇒ S1.3.2 afety Label”, page 4 1.3.1 Dangers When Working with Batteries Recognizing and Preventing Risks Batteries -A- present risks. Read the warnings on the Battery -A- label, in the Owner's Manual and in ELSA to prevent these risks. Audi A1 2011 ➤, Audi A1 Sportback 2018 ➤, Audi A2 2001 ➤, Audi A3 2004 ➤, Audi ... Electrical Equipment General Information - Edition 01.2022 1. Battery 3
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability with respect to the correctness of information in this document. Copyright by AUDI AG. WARNING ♦ Personnel instructed in protection, such as a trainee or an apprentice, may only perform work on vehicle Bat‐ teries -A- under supervision of technical personnel, for example, a master automotive technician or a master automotive electrician. ♦ Acid has strong corrosive properties. If Batteries -A- are handled inappropriately, there is a risk that personal in‐ jury may result from exposure to harmful electrolyte in‐ fluences. Therefore, suitable remedies for acid damage must be kept readily available. Soapy water would be a suitable remedy. ♦ If electrolyte drips out from the Battery -A-, skin can be burned by acid and the vehicle may be affected by acid erosion and corrosion. It is a possibility that safety-rela‐ ted vehicle components can be damaged. ♦ When charging and when resting after charging, explo‐ sive gas is present. In extreme cases, if the Battery -A- is handled inappropriately, the emitted gases may cause the battery to explode. ♦ Replace a Battery -A- if the visual indicator has »no col‐ or or is bright yellow«. They may not be tested or charg‐ ed and jump starting may not be used. There is a risk of explosion during testing, charging or jump starting. ♦ Producing sparks by sanding, welding, cutting and open flames, (also from smoking near the battery) is forbid‐ den. Producing sparks through electrostatic discharge must also be avoided. Always touch the vehicle body before touching the Battery -A-. ♦ Only perform Battery -A- procedures in suitable and well-ventilated locations. WARNING Pollution risk. ♦ Old batteries require special disposal. They contain poi‐ sonous lead (Pb) and sulfuric acid. ♦ Follow disposal requirements, only dispose of used bat‐ teries in suitable containers at an authorized collection site. 1.3.2 Battery Safety Label Safety Label on the Battery -A- Audi A1 2011 ➤, Audi A1 Sportback 2018 ➤, Audi A2 2001 ➤, Audi A3 2004 ➤, Audi ... Electrical Equipment General Information - Edition 01.2022 4 Rep. Gr.27 - Starter, Generator and Cruise Control
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