Mercedes-Benz GLA 250 2019 Operator's Manual page 305

To release cover =, press retaining
X
clamp ;.
Fold out cover = in the direction of the
X
arrow to the catch.
Remove cover = forwards.
X
Fuse allocation chart ? is located on the
lower right-hand side of cover =.
To close: insert cover = on the left-hand
X
side of the fuse box into the retainer.
Cover = engages in the retainers.
Fold down cover = until clamps ; lock
X
audibly.
Fold back perforated floor covering :.
X
Install the floormats.
X
Fuses
303
Z