Mercedes-Benz W211 Manual page 11

Dual battery system
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AGM / VRLA Battery Testing
• Requires the new Midtronics MCR 717 tester and printer
• Tester measures battery conductance by inducing A/C voltage of a given frequency
and amplitude on the battery posts and monitoring the current flow in response to it
• Discard the acid density sheet, and enter test code (recorded by tester) on warranty
claim forms
• Battery replaced under warranty must have a test printout attached to the R.O.
• Detailed information about testing, and using the MCR717 can be found in WIS
SI54.10-P-0003-01
11

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