Thursday 24 June 2021

******** Audi TT Quattro Coupe (8J3) L4-2.0L Turbo (CCTA) Technical DIAGNOSIS AND REPAIR # 271211 Date: 120215


Battery - Testing/Charging On Non BDM/BEM Vehicles



27 Battery testing and charging - vehicles without BDM or BEM



27 12 11



2023266/2



February 15, 2012.



Supersedes Technical Service Bulletin Group 27 number 10 - 04 dated May 5, 2010 for reasons listed below.



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Affected Vehicles



Condition



Battery testing and charging for vehicles that are not equipped with a Battery Data Manager (BDM) or Battery Energy Manager (BEM).



Technical Background



When the Incharge 940 is used as a battery charger in auto mode, it performs a battery condition test and may prematurely fail the battery if the



charging takes place at the jumper posts in the engine compartment. This is due to the added resistance in the system between the battery and jumper



posts. When the Incharge 940 is used as a battery charger in manual mode, the battery condition test is not performed.



Production Solution



Not applicable.



Service



TESTING THE BATTERY



Midtronics MCR340V handheld tester:



1. Connect the tester directly to the battery posts.



2. Enter the DIN value listed on the battery.



Midtronics INC-940 diagnostic charging station - auto mode:



1. Connect the charging station directly to the battery posts.



2. Enter the DIN value listed on the battery.



CHARGING THE BATTERY



Midtronics INC-940 diagnostic charging station - auto or manual mode:



1. Connect the charging station to the battery posts.



2. Enter the DIN value listed on the battery.



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Tip: Please obtain the battery serial number (example: VAO 99050770MX), located on top of the battery, for battery testing or replacement and for



future reference or when contacting the Technical Assistance Center (TAC).



Warranty



This TSB is informational only and not applicable to any Audi warranty.



Additional Information



All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service



manuals for the latest information.