E-Class (W212) 2010 - 2016: E 350, E 550

DIY: AGM Battery Replacement

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Old 08-02-2013, 11:59 AM
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84 300d 2009 e320 bluetec
Wink DIY: AGM Battery Replacement

For replacing the battery in a bluetec, how long can the battery be disconnected before the computer losses its memory? Does it need to be re-flashed? Or should I jump the battery to keep car voltage at 12V?

Also for the MBZ battery, what is the warranty?

Sear's Diehart Adv Gold AGM battery is on sale now. reg $180, $145 for the group 49 AGM battery. Beats the MBZ A0055411001 at reg. $312, $265 discounted.

What gives on battery price these days. Some list the lead acid batteries at a higher price than the AGM batteries?

Last edited by dave2001auto; 08-02-2013 at 12:00 PM. Reason: typo

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