Check battery (AGM/VRLA) operating state - AP54.10-U-5453A

WARNING: This page does not describe the selected car, but rather 203 other vehicles, including the 2020 Mercedes-Benz SLC300, 2020 Mercedes-Benz SL550, 2020 Mercedes-Benz SL450, 2020 Mercedes-Benz S65 AMG, and 2020 Mercedes-Benz GLA250. However, it is still accessible from the selected car via links, so may be relevant.

MODEL 117, 129, 140, 163, 164, 166, 170, 171, 172, 199, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 216, 218, 219, 220, 221, 222 (except 222.07), 230, 231, 240, 251, 451, 463

MODEL 197 without CODE P98 (Black Series)

Fig 1: Identifying Midtronics MCR 717 Tester

Courtesy of MERCEDES-BENZ USA

	Check
1	Check battery condition
	Check battery	Battery test with Midtronics Testers With the introduction of the "Midtronics MCR 717" battery tester in May 2003, and the later "Midtronics EXP 717" in October 2010, all battery types (wet cell and AGM/VRLA batteries) can no longer be tested using previous methods. Load testing or measurement of acid density for all battery types is eliminated. Additionally, acid levels can not be checked. Do not open/remove the cover from an AGM/VRLA battery. Acid density test sheets for warranty and goodwill claims are also eliminated. Warranty or goodwill claims for the replacement of a wet cell/lead calcium/AGM/VRLA battery must include the information specified within S-B-54.10/243. The test report hardcopy should be filed in the workshop. Please review S-B-58.00/124A and AR54.10-P-1129-01A before performing the battery test on AGM/VRLA batteries.	AR54.10-P-1129-01A