Audi A4 Sedan (8K2) L4-2.0L Turbo (CAEB) Technical Service Bulletin # 271002 Date: 100226
Electrical - Battery Testing/Charging Information
27 Battery testing and charging
27 10 02
2017580/8
February 26, 2010.
Supersedes Technical Service Bulletin Group 27 number 10-01 dated February 16, 2010 for reasons listed below.
Affected Vehicles
509
Condition
Battery testing and charging must take place directly at the battery for vehicles that meet all of the following four conditions:
^ Batteries are located in the trunk area.
^ Jumper posts are located in the engine compartment.
^ Vehicle does not have a battery energy manager (BEM).
^ Vehicle may or may not have a battery monitoring control module, J367 (BDM).
Technical Background
Inaccurate test results will occur if the testing and/or 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.
Production Solution
Not applicable.
Service
TESTING THE BATTERY
Midtronics MCR340V handheld tester for vehicles without J367 (BDM):
1. Connect the tester directly to the battery posts.
2. Enter the DIN value listed on the battery.
Midtronics INC-940 diagnostic charging station for vehicles without J367 (BDM):
1. Connect the charging station directly to the battery posts.
2. Enter the DIN value listed on the battery.
VAS scan tool for vehicles with J367 (BDM):
Follow Guided Fault Finding battery test plan in service work.
CHARGING THE BATTERY
Midtronics INC-940 diagnostic charging station:
Connect the charging station - auto mode
510
^ For vehicles equipped with a battery monitoring control module (J367) (BDM): Connect the InCharge 940 negative cable clamp to the vehicles
negative battery cable at the body attachment point (Figures 1 and 2). J367 is clamped directly to battery negative post.
Tip: This connection ensures J367 remains in the loop so that it may provide battery charge data to the Gateway, J533.
^ For all other vehicles: Connect the charging station directly to the battery posts.
^ Enter the DIN value listed on the battery.
Connect the charging station - manual mode
^ For all vehicles: Connect the InCharge 940 to the battery jumping posts in the engine compartment.
^ Enter the DIN value listed on the battery.
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.
