Just a quick note on the last post, no MB does not actually make the batteries, they are made by other company's to Mercedes-Benz specifications. Basically over the past 20 years in the dealership level I have seen what after market batteries can do to a wireing harness. Stick with MB, prices are very competative. They also have the correct vetilation for the tube to vent the gasses away from critical components and wireing. I have replaced many a harness caused by aftermarket batteries. Penny wise, pound foolish. stick with MB.
Mercedes-Benz Master Guild - 2 years
Shop Foreman - 20 + years - dealer.
Part owner - MBZ Transmission remanufacture