where is located the secundary battery in the mercedes E550 2010
The auxiliary battery in your E-Class w212 is located behind the driver's side dashboard. Refer to Figure 2 below when performing the following the steps. Use a trim removal tool to pry off the fuse box access panel (1) on the side of the dash. Remove the Phillips screws on the lower dash panel (2), and detach it. With your ratchet and socket, remove one bolt (5) from the panel covering the auxiliary battery (G1/7). Behind the panel, unbolt the bracket (3) holding up the battery. Disconnect the positive and negative leads (6) from the battery. Remove the bolts from the additional battery bracket (4). Make sure to support the battery as it may fall inside the dash. Remove the auxiliary battery.
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