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Home >> Mercedes Benz >> 2010 >> GL550 >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Charging, Control Panel/Cluster, Data Bus, Fuses/ Relays, PARKTRONIC, Sensors & Switches - 164 Chassis >> Maintenance >> Battery (AGM/VRLA) - check condition - AP54.10-U-5453A

Battery (AGM/VRLA) - check condition - AP54.10-U-5453A

MODEL 129, 140, 163, 164, 170, 171, 199, 202, 203, 204, 208, 209, 210, 211, 215, 216, 220, 221, 230, 240, 463 

Fig 1: Identifying Battery (AGM/VRLA) Tester
G04960315Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Battery test with Midtronics MCR 717 

With introduction of the new "Midtronics MCR 717" battery tester, a new testing method is applied for all types of batteries used by DaimlerChrysler (wet cell and AGM/VRLA batteries).

AGM/VRLA batteries can no longer be tested with the previous methods. Additionally, the acid level can not checked, do not open/ remove the cover from the AGM/VRLA battery.

In the future, measurement of the acid density, has been eliminated just as has testing the load for all types of batteries.

This also eliminates the acid density test sheet when filling out warranty and goodwill claims. For this purpose enter test code (indicated by tester) in text field "Message text" of the G/K proposal form in the event of a negative test result

Important note: 

Warranty/goodwill claims where a wet cell/lead calcium/AGM/VRLA battery is installed in the course of repair, will now only be recognized when the test result (result code) is entered on the repair order and in the message field on the warranty/goodwill claim.

Moreover, the hardcopy of the test report should be filed in the workshop.

Please review the MBUSA document: S-B-58.00/124 and the document (AR54.10-P-1129-01A ) noted below, before performing the battery test on AGM/VRLA batteries.

REFER TO TESTING & REPAIR Check battery AR54.10-P-1129-01A