Britax Marathon P216800R9 Manuel D’Utilisation

If a child eats and drinks while in

the restraint, the buckle may

need to be periodically checked

and cleaned of any accumulated

debris or dried liquids.

using

warm water (Fig. B).
SOAK,

overnight if possible, 

using warm water to loosen 

hardened drinks or food.
TEST THE BUCKLE,

by 

fastening and unfastening 

until a positive click is heard 

after inserting the second 

buckle tongue (Fig. C). If 

click is not heard, repeat 

cleaning procedure.
TOWEL DRY

Lubricate, use solvents, abrasive cleaners, soap or 

household detergents.

B

C

Fully recline the child restraint.

Locate the metal buckle strap

retainer on bottom of the

restraint.

Pull retainer away from child

restraint to loosen.

Turn the retainer so that the short side will go through the slot

in the restraint shell (Fig. A).

Push the retainer through slots in the shell and cover, to the front

of the restraint.

Locate the buckle slot.

Turn the buckle retainer so that the short side will go through the

slot in the cover and restraint shell (Fig. A).

Pull buckle away from restraint until tight, then verify that the

strap is not twisted and the release button is facing outward.

A

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